Download PDF Manual


EKS008LB


QR25DE


VQ35DE


M/T model


Mitsubishi


A/T model


Mitsubishi


M/T model


Mitsubishi


A/T model


Mitsubishi


M001T87181ZC


M001T68781ZC


M000T87281ZC


M000T87181ZC


Reduction gear type


2,750 rpm Min.


5.5mm


15.0-20.4 N (1.53-2.08 kg, 3.37-4.59 lb)


12V


11V


90A Max.


28.8 mm


2,800 rpm Min.


7.0 mm


18.3-24.8 N (1.87-2.53 kg, 4.11-5.58 lb)


0.5-2.0 mm


QR25DE


LR1110-721


VQ35DE


LR1110-726


EKS008LC


HITACHI


12V-110A


Negative


1100 rpm


More than 35A/1,300 rpm More than 91A/2,500 rpm More than 110A/5,000 rpm


14.1 - 14.7V


6 mm (0.236 in)


1.000 - 3.432 N (0.102 - 0.350 kg, 0.225 - 0.772 lbs)


26.0 mm (1.024 in)


2.31 ohms


SC


Revision: March 2005


SC-31


2005 Altima


SERVICE DATA AND SPECIFICATIONS (SDS)


Revision: March 2005


SC-32


2005 Altima


K ELECTRICAL


SECTION SC A


STARTING & CHARGING SYSTEM


CONTENTS


PRECAUTIONS .......................................................... 2


Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN- SIONER” .................................................................. 2
Wiring Diagrams and Trouble Diagnosis .................. 2
PREPARATION ........................................................... 3
Special Service Tool ................................................. 3
Commercial Service Tools ........................................ 3
BATTERY .................................................................... 4
How to Handle Battery ............................................. 4


METHODS OF PREVENTING OVER-DIS- CHARGE ............................................................... 4
CHECKING ELECTROLYTE LEVEL .................... 4
SPECIFIC GRAVITY CHECK ............................... 5
CHARGING THE BATTERY ................................. 6


Trouble Diagnoses with Battery/Starting/Charging System Tester .......................................................... 6
DIAGNOSTIC RESULT ITEM CHART .................. 8
STARTING SYSTEM .................................................. 9
System Description .................................................. 9
M/T MODELS ........................................................ 9
A/T MODELS ........................................................ 9
CAN Communication System Description ................ 9
Wiring Diagram — START — ................................. 10
M/T MODELS ...................................................... 10
4 A/T MODEL .......................................................11
5 A/T MODEL ...................................................... 12


Trouble Diagnoses with Battery/Starting/Charging System Tester ........................................................ 13
DIAGNOSTIC RESULT ITEM CHART ................ 13
WORK FLOW ...................................................... 14


DIAGNOSTIC PROCEDURE 1 ........................... 15
DIAGNOSTIC PROCEDURE 2 ........................... 16
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEM- PERATURE ......................................................... 17
Removal and Installation ........................................ 17
M/T MODELS ...................................................... 17
Removal and Installation ........................................ 17
4-SPEED A/T MODELS ...................................... 17
Removal and Installation ........................................ 18
5-SPEED A/T MODELS ...................................... 18
Pinion/Clutch Check ............................................... 20
CHARGING SYSTEM ............................................... 21
System Description ................................................. 21
Wiring Diagram — CHARGE — ............................. 22
Trouble Diagnoses with Battery/Starting/Charging System Tester ......................................................... 23
DIAGNOSTIC RESULT ITEM CHART ................ 24
WORK FLOW ...................................................... 25
DIAGNOSTIC PROCEDURE 1 ........................... 26
DIAGNOSTIC PROCEDURE 2 ........................... 27
DIAGNOSTIC PROCEDURE 3 ........................... 28
MALFUNCTION INDICATOR .............................. 29
Removal and Installation ........................................ 29
QR25DE .............................................................. 29
VQ35DE .............................................................. 29
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 31
Battery .................................................................... 31
Starter ..................................................................... 31
Generator ............................................................... 31


Revision: March 2005


SC-1


2005 Altima


SC


PRECAUTIONS


PFP:00001


PRECAUTIONS Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER” The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Man- ual. WARNING:


To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be per- formed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to per- sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS section.


EKS008KU


G Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.


Wiring Diagrams and Trouble Diagnosis When you read wiring diagrams, refer to the following:


GI-14, "How to Read Wiring Diagrams" . PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.


When you perform trouble diagnosis, refer to the following: G GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES". G GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident".


EKS008KV


Revision: March 2005


SC-2


2005 Altima


PREPARATION Special Service Tool


Tool number Tool name


J-44373 Model 620
Battery/Starting/Charging system tester


PREPARATION


SEL403X


PFP:00002


EKS008KW


Description


Commercial Service Tools


EKS008KX


Tool number Tool name


Power tool


Description


Loosening bolts and nuts


PBIC0190E


SC


Revision: March 2005


SC-3


2005 Altima


BATTERY


PFP:AYBGL


EKS008KY


BATTERY How to Handle Battery CAUTION:


If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt booster battery.


G After connecting battery cables, ensure that they are tightly clamped to battery terminals for good


contact.


G Never add distilled water through the hole used to check specific gravity. METHODS OF PREVENTING OVER-DISCHARGE The following precautions must be taken to prevent over-discharging a battery.


The battery surface (particularly its top) should always be kept clean and dry. The terminal connections should be clean and tight. At every routine maintenance, check the electrolyte level. This also applies to batteries designated as “low maintenance” and “maintenance-free”.


G When the vehicle is not going to be used over a long period of


time, disconnect the negative battery terminal.


G Check the charge condition of the battery.


Periodically check the specific gravity of the electrolyte. Keep a close check on charge condition to prevent over-discharge.


MEL040F


MEL041F


MEL042F


CHECKING ELECTROLYTE LEVEL WARNING: Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch- ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con- tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.


Revision: March 2005


SC-4


2005 Altima


A


SC


MEL043F


SEL709E


MEL042FA


BATTERY


G Remove the cell plug using a suitable tool.


Add distilled water up to the MAX level.


Sulphation A battery will be completely discharged if it is left unattended for a long time and the specific gravity will become less than 1.100. This may result in sulphation on the cell plates. To determine if a battery has been “sulphated”, note its voltage and current when charging it. As shown in the figure, less cur- rent and higher voltage are observed in the initial stage of charging sulphated batteries. A sulphated battery may sometimes be brought back into ser- vice by means of a long, slow charge, 12 hours or more, fol- lowed by a battery capacity test.


SPECIFIC GRAVITY CHECK 1. Read hydrometer and thermometer indications at eye level. 2. Use the following chart to correct your hydrometer reading


according to electrolyte temperature.


Hydrometer Temperature Correction


Battery electrolyte temperature °C (°F)


Add to specific gravity reading


71 (160)


66 (150)


60 (140)


54 (130)


49 (120)


43 (110)


38 (100)


32 (90)


27 (80)


21 (70)


16 (60)


10 (50)


4 (40) −1 (30) −7 (20)


0.032


0.028


0.024


0.020


0.016


0.012


0.008


0.004


−0.004
−0.008
−0.012
−0.016
−0.020
−0.024


Revision: March 2005


SC-5


2005 Altima


BATTERY


Battery electrolyte temperature °C (°F)


Add to specific gravity reading


−12 (10) −18 (0)


−0.028
−0.032


Corrected specific gravity


Approximate charge condition


1.260 - 1.280


1.230 - 1.250


1.200 - 1.220


1.170 - 1.190


1.140 - 1.160


1.110 - 1.130


Fully charged


3/4 charged


1/2 charged


1/4 charged


Almost discharged


Completely discharged


CHARGING THE BATTERY CAUTION: G Do not “quick charge” a fully discharged battery. G Keep the battery away from open flame while it is being charged. G When connecting the charger, connect the leads first, then turn on the charger. Do not turn on the


charger first, as this may cause a spark. If battery electrolyte temperature rises above 60°C (140°F), stop charging. Always charge battery at a temperature below 60°C (140°F).


Charging Rates


Amps


50


25


10


Time


1 hour


2 hours


5 hours


10 hours


Do not charge at more than 50 ampere rate. NOTE: The ammeter reading on your battery charger will automatically decrease as the battery charges. This indi- cates that the voltage of the battery is increasing normally as the state of charge improves. The charging amps indicated above refer to initial charge rate.


If, after charging, the specific gravity of any two cells varies more than .050, the battery should be replaced.


Trouble Diagnoses with Battery/Starting/Charging System Tester CAUTION: When working with batteries, always wear appropriate eye protection. NOTE:


To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be done as a set from start to finish. If battery surface charge is detected while testing, the tester will prompt you to turn on the headlights to remove the surface charge. If necessary, the tester will prompt you to determine if the battery temperature is above or below 0°C (32°F). Choose the appropriate selection by pressing the up or down arrow button, then press “ENTER” to make the selection.


EKS008KZ


Revision: March 2005


SC-6


2005 Altima


BATTERY


1. Turn off all loads on the vehicle electrical system. Clean or repair


as necessary.


2. Visually inspect the battery, battery terminals and cable ends


with ignition switch in “OFF” position. NOTE: The contact surface between the battery terminals, cable ends and tester leads must be clean for a valid test. A poor connec- tion will prevent testing and a “CHECK CONNECTION” mes- sage will appear during the test procedures. If this occurs, clean the battery post and terminals, reconnect them and restart the test.


3. Connect the red tester lead clamp to the positive battery termi-


nal, and the black to the negative terminal.


4. The tester will turn on automatically. Using the arrow keys, select “IN-VEHICLE” on the tester and then press the “ENTER” key.


5. Locate the battery type and rating stamped or written on the top


case of the battery to be tested. NOTE: The battery type and rating will have either of the following. CCA: Cold Cranking Amps (490 CCA, 550 CCA, etc.) JIS: Japanese Industrial Standard. Battery is stamped with a number such as: 80D26L: 80 (rank of output), D (physical size-depth), 26 (width in cm). The last character L (post configuration) is not input into the tester. The tester requires the rating for the battery be entered exactly as it is written or stamped on the battery. Do not attempt a CCA conversion for JIS stamped batteries. JIS must be input directly.


6. Using the arrow and “ENTER” keys alternately, select the battery type and rating.


NOTE: The tester lists five choices; CCA, JIS, IEC, DIN, and EN. Only use CCA or JIS.


7. Press “ENTER” to begin the test. Diagnosis results are dis- played on the tester. Refer to SC-8, "DIAGNOSTIC RESULT ITEM CHART" .


SC


SEL404X


SEL405X


SEL406X


SEL407X


Revision: March 2005


SC-7


2005 Altima


BATTERY


8. Press “ENTER”, then test output code is displayed. Record the


test output code on the repair order.


9. Toggle back to the “DIAGNOSTIC SCREEN” for test results.


NOTE: G If necessary, the tester will ask the user to determine if the battery has just been charged. Choose the appropriate selec- tion by pressing the up or down arrow button and then press the “ENTER” button to make the selection.


G When testing a battery installed in a vehicle that has recently


been driven, select “BEFORE CHARGE”.


G If the battery has just been slow charged due to a “CHARGE


SEL576X


& RETEST” decision by the tester, and the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER CHARGE”.


DIAGNOSTIC RESULT ITEM CHART


Diagnostic item


Service procedure


GOOD BATTERY


REPLACE BATTERY


BAD CELL-REPLACE


GOOD-RECHARGE


CHARGE & RETEST


Battery is OK. Refer to SC-13, "Trouble Diagnoses with Battery/Starting/Charging System Tester" .


Replace battery. Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again with Battery/Starting/Charging system tester. If second test result is “Replace Bat- tery”, then do so. Perform battery test again to confirm repair.


Replace the battery. Perform battery test again with Battery/Starting/Charging system tester to confirm repair.


Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Per- form battery test again with Battery/Starting/Charging system tester.


Perform the slow battery charging. (Initial rate of charge is 10A for 12 hours.) Perform battery test again with Battery/Starting/Charging system tester to confirm repair. NOTE: If the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER CHARGE”.


Revision: March 2005


SC-8


2005 Altima


STARTING SYSTEM


PFP:23300


EKS008L0


STARTING SYSTEM System Description M/T MODELS Power is supplied at all times:


through 40A fusible link (letter m , located in the fuse and fusible link box) to ignition switch terminal B.


With the ignition switch in the START position, power is supplied:


from ignition switch terminal ST to intelligent power distribution module engine room (IPDM E/R) terminal 4.


With the ignition switch in the ON or START position, power is supplied:


through 10A fuse [No. 12, located in the fuse block (J/B)] to IPDM E/R terminal 53.


When the clutch pedal is depressed, ground is supplied to IPDM E/R terminal 50 through the clutch interlock switch and body grounds E15 and E24. Provided that the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN lines, the IPDM E/R grounds the starter relay and power is supplied:


from terminal 3 of the IPDM E/R to terminal S of the starter motor windings.


The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates. In the event that the CAN communication line fails between the IPDM E/R and the BCM, the IPDM E/R will default to a starter relay request ON signal as long as the ignition switch remains in the START or ON position. A/T MODELS Power is supplied at all times:


through 40A fusible link (letter m , located in the fuse and fusible link box) to ignition switch terminal B.


With the ignition switch in the START position, power is supplied:


from ignition switch terminal ST to IPDM E/R terminal 4.


With the ignition switch in the ON or START position, power is supplied:


through 10A fuse [No. 12, located in the fuse block (J/B)] to park/neutral (PNP) switch terminal 1 (with 4 A/T) or terminal 5 (with 5 A/T).


With the selector lever in P or N position, power is supplied:


through PNP switch terminal 2 (with 4 A/T) or terminal 1 (with 5 A/T) to IPDM E/R terminal 53.


Provided the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN lines, the IPDM E/R grounds the starter relay and power is supplied:


from terminal 3 of the IPDM E/R to terminal S of the starter motor windings.


The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates. In the event that the CAN communication line fails between the IPDM E/R and the BCM, the IPDM E/R will default to a starter relay request ON signal as long as the ignition switch remains in the START or ON position. CAN Communication System Description Refer to LAN-21, "CAN COMMUNICATION" .


EKS008L1


SC


Revision: March 2005


SC-9


2005 Altima


STARTING SYSTEM


Wiring Diagram — START — M/T MODELS


EKS008L2


Revision: March 2005


SC-10


WKWA2905E


2005 Altima


STARTING SYSTEM


4 A/T MODEL


SC


Revision: March 2005


SC-11


WKWA2159E


2005 Altima


STARTING SYSTEM


5 A/T MODEL


Revision: March 2005


SC-12


WKWA2160E


2005 Altima


A


SC


STARTING SYSTEM


Trouble Diagnoses with Battery/Starting/Charging System Tester NOTE: To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be done as a set from start to finish. 1. Turn off all loads on the vehicle electrical system. 2. Perform battery test with Battery/Starting/Charging system tester. Refer to SC-6, "Trouble Diagnoses with Battery/Starting/ Charging System Tester" .


EKS008L3


3. Press “ENTER” to begin the starting system test.


4. Start the engine.


5. Diagnosis result is displayed on the tester. Refer to SC-13,


"DIAGNOSTIC RESULT ITEM CHART" . NOTE: G If the starter performs normally but the engine does not start,


perform engine diagnosis.


G For intermittent “NO CRANK” or “NO STARTER OPERA- TION” incidents, refer to SC-16, "DIAGNOSTIC PROCE- DURE 2" .


SEL408X


SEL409X


SEL410X


DIAGNOSTIC RESULT ITEM CHART


Diagnostic item


Service procedure


CRANKING VOLTAGE NORMAL


Go to “WORK FLOW”, SC-14, "WORK FLOW" .


CRANKING VOLTAGE LOW


Go to “WORK FLOW”, SC-14, "WORK FLOW" .


CHARGE BATTERY


REPLACE BATTERY


Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Per- form battery test again with Battery/Starting/Charging system tester. Refer to SC-6, "Trouble Diagnoses with Battery/Starting/Charging System Tester" .


Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again with Battery/Starting/Charging system tester. Refer to SC-6, "Trouble Diagnoses with Battery/Starting/Charging System Tester" . If second test result is “REPLACE BAT- TERY”, then do so. Perform battery test again to confirm repair.


Revision: March 2005


SC-13


2005 Altima


STARTING SYSTEM


WORK FLOW


*1 SC-13
*4 SC-16


*2 SC-15


*3 SC-16


WKIA3559E


Revision: March 2005


SC-14


2005 Altima


STARTING SYSTEM


DIAGNOSTIC PROCEDURE 1
Check Starter Motor Circuit


1. CHECK POWER SUPPLY TO STARTER MOTOR 1. Remove the fuel pump fuse. 2. Crank or start the engine (where possible) until the fuel pressure is released. 3. Turn the ignition switch OFF. 4. Check that the starter motor connector F27 terminal B (B/R) connection is clean and tight. 5. Check voltage between starter motor connector F27 terminal B


(B/R) and ground using a digital circuit tester.


Battery voltage should exist.


OK or NG OK NG


>> GO TO 2. >> Check harness between the battery and the starter


motor for open circuit.


2. CHECK VOLTAGE DROP ON STARTER MOTOR CIRCUIT 1. Turn the ignition switch to START. 2. Check voltage between starter motor connector F27 terminal B


(B/R) and battery positive terminal using a digital circuit tester.


Ignition switch in START.


: Less than 0.5V


OK or NG OK NG


>> GO TO 3. >> Check harness between the battery and the starter


motor for poor continuity.


3. CHECK VOLTAGE DROP ON STARTER MOTOR GROUND CIRCUIT 1. Turn the ignition switch to START. 2. Check voltage between starter motor case and battery negative


terminal using a digital circuit tester.


Ignition switch in START.


: Less than 0.2V


OK or NG OK


>> Starter motor ground circuit is OK. Further inspection is


necessary. Refer to SC-14, "WORK FLOW" .


NG


>> Check for poor continuity between the starter motor


case and battery negative terminal.


SC


WKIA0137E


WKIA0138E


WKIA0139E


Revision: March 2005


SC-15


2005 Altima


STARTING SYSTEM


DIAGNOSTIC PROCEDURE 2
Check Magnetic Switch Circuit


1. CHECK POWER SUPPLY FOR MAGNETIC SWITCH 1. Remove the fuel pump fuse. 2. Crank or start the engine (where possible) until the fuel pressure is released. 3. Turn the ignition switch OFF. 4. Disconnect starter motor connector F28. 5. Check voltage between starter motor connector F28 terminal S


(B/W) and ground using a digital circuit tester.


Ignition switch in START.


: Battery voltage


OK or NG OK NG


>> GO TO 2. >> Check the following.


G 40A fusible link (letter m , located in fuse and fusible


link box)


G Starter relay [within the intelligent power distribution


module engine room (IPDM E/R)]


G Harness for open or short


2. CHECK VOLTAGE DROP ON MAGNETIC SWITCH CIRCUIT 1. Connect starter motor connector F28. 2. Check voltage between starter motor connector F28 terminal S


(B/W) and battery positive terminal using a digital tester.


Ignition switch in START.


: Less than 1V


OK or NG OK


>> Magnetic switch circuit is OK. Further inspection is nec-


essary. Refer to SC-14, "WORK FLOW" .


NG


>> Check harness between the battery and the magnetic


switch for poor continuity.


WKIA1549E


WKIA1550E


Revision: March 2005


SC-16


2005 Altima


STARTING SYSTEM


MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA- TURE


Engine coolant temperature


−30°C to −20°C (−22°F to −4°F) −19°C to −10°C (−2°F to 14°F)


−9°C to 0°C (16°F to 32°F)


More than 1°C (More than 34°F)


Voltage V


QR25DE


VQ35DE


8.7


9.2


9.6


10.0


8.4


8.9


9.3


9.7


EKS008L4


Removal and Installation M/T MODELS REMOVAL 1. Disconnect the negative battery terminal. 2. Remove the air cleaner cover and the air cleaner to intake man-


ifold collector duct.


3. Remove the harness protector from the starter motor engine


room harness.


4. Disconnect the starter motor harness connectors. 5. Remove the two starter motor bolts, using power tools. 6. Remove the starter motor.


INSTALLATION Installation is in the reverse order of removal.


Removal and Installation 4-SPEED A/T MODELS REMOVAL 1. Disconnect the negative battery terminal. 2. Remove the air cleaner case (upper) and the air cleaner to electric throttle control actuator tube. 3. Remove the harness protector from the starter engine room harness. 4. Disconnect the starter harness connectors.


SC


WKWA0065E


WKIA0394E


EKS00C2R


Revision: March 2005


SC-17


2005 Altima


STARTING SYSTEM


5. Remove the two starter bolts, using power tools. 6. Remove the starter.


INSTALLATION Installation is in the reverse order of removal. Removal and Installation 5-SPEED A/T MODELS REMOVAL 1. Disconnect the negative battery terminal. 2. Remove the starter insulator.


WKIA2058E


EKS00C2Q


WKIA0400E


3. Remove the harness bracket and harness protector from the starter engine room harness. 4. Disconnect the starter harness connectors.


Revision: March 2005


SC-18


2005 Altima


STARTING SYSTEM


5. Remove the two starter bolts, using power tools. 6. Remove the starter.


INSTALLATION Installation is in the reverse order of removal.


WKIA0397E


SC


Revision: March 2005


SC-19


2005 Altima


STARTING SYSTEM


EKS008L5


Pinion/Clutch Check 1.


Inspect pinion assembly teeth. G Replace pinion assembly if teeth are worn or damaged. (Also check condition of ring gear teeth.) Inspect planetary gears/planetary gear teeth. G Replace planetary gears/planet gears if teeth are worn or damaged. (Also check condition of pinion


2.


shaft/drive shaft gear teeth.)


3. Check to see if pinion assembly locks in one direction and rotates smoothly in the opposite direction.


G If it locks or rotates in both directions, or if unusual resistance is evident, replace.


Revision: March 2005


SC-20


2005 Altima


CHARGING SYSTEM


PFP:23100


CHARGING SYSTEM System Description The generator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged. The voltage output is controlled by the IC regulator. Power is supplied at all times to generator terminal B through: 120A fusible link (letter a , located in the fusible link box). Power is supplied at all times to generator terminal S through: 10A fuse (No. 26, located in the fuse and fusible link box). Terminal B supplies power to charge the battery and operate the vehicle's electrical system. Output voltage is controlled by the IC regulator at terminal S detecting the input voltage. The charging circuit is protected by the 120A fusible link. The generator is grounded to the engine block. With the ignition switch in the ON or START position, power is supplied:


EKS008L6


through 10A fuse [No. 14, located in the fuse block (J/B)] to combination meter terminal 22 for the charge warning lamp.


Ground is supplied to terminal 14 of the combination meter through terminal L of the generator. With power and ground supplied, the charge warning lamp will illuminate. When the generator is providing sufficient volt- age with the engine running, the ground is opened and the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a fault is indicated.


SC


Revision: March 2005


SC-21


2005 Altima


CHARGING SYSTEM


Wiring Diagram — CHARGE —


EKS008L7


Revision: March 2005


SC-22


WKWA1355E


2005 Altima


CHARGING SYSTEM


Trouble Diagnoses with Battery/Starting/Charging System Tester NOTE: To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be done as a set from start to finish. 1. Turn off all loads on the vehicle electrical system. 2. Perform battery and starting system test with Battery/Starting/


EKS008L8


Charging system tester.


3. Press “ENTER” to begin the charging system test. 4. Start engine.


5. Press “ENTER” until “LOADS OFF REV ENGINE 5 SEC” is dis-


played.


6. Raise and hold the engine speed at 1,500 to 2,000 rpm for about


5 seconds, then return the engine to idle. Once the increase in engine rpm is detected, press “ENTER” to continue. NOTE: G If after 30 seconds an increase in engine idle speed is not


detected, “RPM NOT DETECTED” will display.


G Some engines may have a higher idle initially after starting, particularly when the engine is cold. The tester may detect this without any other action being taken. If this occurs, con- tinue on with the testing process. The final results will not be affected.


7. The tester now checks the engine at idle and performs the


DIODE/RIPPLE check.


8. When complete, the tester will prompt you to turn on the follow-


ing electrical loads. G Heater fan set to highest speed. Do not run the A/C or wind-


shield defroster.


G Headlamp high beam G Rear window defogger NOTE: Do not run the windshield wipers or any other cyclical loads.


9. Press “ENTER” to continue.


SEL417X


SEL418X


SEL419X


SEL420X


SC


Revision: March 2005


SC-23


2005 Altima


CHARGING SYSTEM


10. Raise and hold the engine speed at 1,500 to 2,000 rpm for about 5 seconds, then return the engine to idle. Once the increase in engine rpm is detected, press “ENTER” to continue. NOTE: If after 30 seconds an increase in engine idle speed is not detected, “RPM NOT DETECTED” will be displayed. Press “ENTER” to restart the test.


11. Diagnostic result is displayed on the tester. Refer to SC-24,


"DIAGNOSTIC RESULT ITEM CHART" .


12. Press “ENTER” then test output code is displayed. Record the


test output code on the repair order.


13. Toggle back to the “DIAGNOSTIC SCREEN” for test results.


SEL421X


SEL422X


SEL577X


DIAGNOSTIC RESULT ITEM CHART


Diagnostic item


Service procedure


CHARGING SYSTEM NORMAL


Charging system is normal and will also show DIODE RIPPLE test result.


NO CHARGING VOLTAGE


Go to SC-25, "WORK FLOW" .


LOW CHARGING VOLTAGE


Go to SC-25, "WORK FLOW" .


HIGH CHARGING VOLTAGE


Go to SC-25, "WORK FLOW" .


DIODE RIPPLE NORMAL


Diode ripple is OK and will also show CHARGING VOLTAGE test result.


EXCESS RIPPLE DETECTED


Replace the generator. Perform “DIODE RIPPLE” test again using Battery/Starting/Charging system tester to confirm repair.


DIODE RIPPLE NOT DETECTED


Go to SC-25, "WORK FLOW" .


Revision: March 2005


SC-24


2005 Altima


CHARGING SYSTEM


WORK FLOW


SC


WKIA4022E


Revision: March 2005


SC-25


2005 Altima


CHARGING SYSTEM


DIAGNOSTIC PROCEDURE 1
Check Charge Warning Lamp Circuit


1. CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION Check to see if terminal "L" is clean and tight. OK or NG OK NG


system test.


>> GO TO 2. >> Repair terminal "L" connection. Confirm repair by performing complete Battery/Starting/Charging


2. CHECK CHARGE WARNING LAMP CIRCUIT 1. Disconnect F1 connector from generator. 2. Apply ground to connector F1 terminal L (BR/Y) with the ignition


switch in the ON position.


CHARGE lamp should light up.


OK or NG OK


>> Replace the generator. Confirm repair by performing


complete Battery/Starting/Charging system test.


NG


>> Check the following.


G 10A fuse [No. 14, located in fuse block (J/B)] G CHARGE lamp G Harness for open or short between combination


meter and fuse


G Harness for open or short between combination meter and generator


WKIA0142E


Revision: March 2005


SC-26


2005 Altima


CHARGING SYSTEM


DIAGNOSTIC PROCEDURE 2
Check Battery Circuit


1. CHECK BATTERY CIRCUIT CONNECTION Check to see if terminal "B" is clean and tight. OK or NG OK NG


system test.


>> GO TO 2. >> Repair terminal "B" connection. Confirm repair by performing complete Battery/Starting/Charging


2. CHECK BATTERY CIRCUIT Check voltage between generator connector F2 terminal B (B/R) and ground using a digital circuit tester.


Battery voltage should exist.


OK or NG OK NG


>> GO TO 3. >> Check the following.


G 120A fusible link (letter a , located in fusible link box) G Harness for open or short between generator and fus-


ible link


3. CHECK VOLTAGE DROP ON BATTERY CIRCUIT Check voltage between generator connector F2 terminal B (B/R) and battery positive terminal using a digital tester.


With engine running at idle and warm


: Less than 0.2V


OK or NG OK


NG


>> Replace the generator. Refer to SC-29, "Removal and Installation" . Confirm repair by performing complete Battery/Starting/Charging system test.


>> Check harness between the battery and the generator


for poor continuity.


WKIA0143E


WKIA0144E


SC


Revision: March 2005


SC-27


2005 Altima


CHARGING SYSTEM


DIAGNOSTIC PROCEDURE 3
Check Voltage Regulator Circuit


1. CHECK VOLTAGE REGULATOR CIRCUIT CONNECTION Check to see if terminal "S" is clean and tight. OK or NG OK NG


system test.


>> GO TO 2. >> Repair terminal "S" connection. Confirm repair by performing complete Battery/Starting/Charging


2. CHECK VOLTAGE REGULATOR CIRCUIT Check voltage between generator connector F1 terminal S (Y/B) and ground using a digital circuit tester.


Battery voltage should exist.


OK or NG OK NG


>> GO TO 3. >> Check the following.


G 10A fuse (No. 26, located in fuse and fusible link box) G Harness for open or short between generator and


fuse


3. CHECK VOLTAGE DROP ON VOLTAGE REGULATOR CIRCUIT Check voltage between generator connector F1 terminal S (Y/B) and battery positive terminal using a digital tester.


With engine running at idle and warm.


: Less than 0.2V


OK or NG OK


NG


>> Replace the generator. Refer to SC-29, "Removal and Installation" . Confirm repair by performing complete Battery/Starting/Charging system test.


>> Check harness between the battery and the generator


for poor continuity.


WKIA0145E


WKIA0146E


Revision: March 2005


SC-28


2005 Altima


CHARGING SYSTEM


Excessive voltage is produced.


MALFUNCTION INDICATOR The IC regulator warning function activates to illuminate “CHARGE” warning lamp, if any of the following symptoms occur while generator is operating: G No voltage is produced. Removal and Installation QR25DE Removal 1. Disconnect the negative battery terminal. 2. Remove the engine cover. 3. Remove the front/right-side engine undercover, using power


EKS008L9


tools.


4. Remove the drive belt. 5. Disconnect the generator harness connector. 6. Disconnect the engine ground wire from top mount. 7. Remove the generator upper and lower mounting bolts, using


power tools.


8. Set the generator aside and remove the generator top mount. 9. Slide the generator out and remove. Installation Installation is in the reverse order of removal.


LKWA0051E


VQ35DE Removal 1. Disconnect the negative battery terminal. 2. Remove radiator, refer CO-30, "Removal and Installation" . 3. Remove front/right-side engine undercover. 4. Remove the drive belt, refer to EM-15, "Removal and Installation" . 5. Remove idler pulley. 6. Remove the generator adjustable top mount, using power tools. 7. Remove the generator lower mount bolt and nuts, using power tools. 8. Remove the generator lower front bracket bolt, using power tools. 9. Disconnect the generator harness connectors. 10. Slide the generator out and remove.


LKWA0052E


SC


Revision: March 2005


SC-29


2005 Altima


CHARGING SYSTEM


Installation Installation is in the reverse order of removal.


LKWA0070E


Revision: March 2005


SC-30


2005 Altima


SERVICE DATA AND SPECIFICATIONS (SDS)


SERVICE DATA AND SPECIFICATIONS (SDS) Battery


Type


Capacity (20 HR) minimum V-AH


Cold cranking current A (For reference value) Starter


Application


Manufacturer


Type


System voltage


No-load


Terminal voltage


Current


Revolution


Minimum diameter of commutator


Minimum length of brush


Brush spring tension


Clearance between pinion front edge and pinion stopper Generator


Application


Type


Nominal rating


Ground polarity


Minimum revolution under no-load (When 13.5 volts is applied)


Hot output current (When 13.5 volts is applied)


Regulated output voltage


Minimum length of brush


Brush spring pressure


Slip ring minimum outer diameter


Rotor (Field coil) resistance


GR.24F (BCI)


12-63


550 @ -18°C (0°F)


PFP:00030


EKS008LA


EKS008LB


QR25DE


VQ35DE


M/T model


Mitsubishi


A/T model


Mitsubishi


M/T model


Mitsubishi


A/T model


Mitsubishi


M001T87181ZC


M001T68781ZC


M000T87281ZC


M000T87181ZC


Reduction gear type


2,750 rpm Min.


5.5mm


15.0-20.4 N (1.53-2.08 kg, 3.37-4.59 lb)


12V


11V


90A Max.


28.8 mm


2,800 rpm Min.


7.0 mm


18.3-24.8 N (1.87-2.53 kg, 4.11-5.58 lb)


0.5-2.0 mm


QR25DE


LR1110-721


VQ35DE


LR1110-726


EKS008LC


HITACHI


12V-110A


Negative


1100 rpm


More than 35A/1,300 rpm More than 91A/2,500 rpm More than 110A/5,000 rpm


14.1 - 14.7V


6 mm (0.236 in)


1.000 - 3.432 N (0.102 - 0.350 kg, 0.225 - 0.772 lbs)


26.0 mm (1.024 in)


2.31 ohms


SC


Revision: March 2005


SC-31


2005 Altima


SERVICE DATA AND SPECIFICATIONS (SDS)


Revision: March 2005


SC-32


2005 Altima


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