Nissan Altima (L32) 2007-2012 Service Manual ≻ Charging system ≻ Component diagnosis ≻ Power generation voltage variable control system operation inspection

Nissan Altima (L32) 2007-2012 Service Manual: Power generation voltage variable control system operation inspection

Inspection Procedure

CAUTION: When performing this inspection, always use a charged battery that has completed the battery inspection.

(When the charging rate of the battery is low, the response speed of the voltage change will become slow. This can cause an incorrect inspection.)

1.CHECK ECM (CONSULT-III)

Perform ECM self-diagnosis with CONSULT-III. Refer to EC-125, "CONSULT-III Function" (QR25DE for California), EC-654, "CONSULT-III Function" (QR25DE except for California) or EC-1155, "CONSULT-III Function" (VQ35DE).

Self-diagnostic results content

No malfunction detected>> GO TO 2

Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

2.CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

1. Connect CONSULT-III and start the engine.

2. The selector lever is in “P” or “N” position and all of the electric loads and A/C, etc. are turned OFF.

3. Select “ALTERNATOR DUTY” in “Active Test” of “ENGINE”, and then check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.

4. Check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 80.0%.

Is the measurement value within the specification? YES >> Inspection End.

NO >> GO TO 3

3.CHECK IPDM E/R (CONSULT-III)

Perform IPDM E/R self-diagnosis with CONSULT-III. Refer to PCS-17, "CONSULT - III Function (IPDM E/R)".

Self-diagnostic results content

No malfunction detected>> GO TO 4

Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

4.CHECK HARNESS BETWEEN GENERATOR AND IPDM E/R

1. Turn ignition switch OFF.

2. Disconnect generator connector and IPDM E/R connector.

3. Check continuity between generator harness connector F7 (A) terminal 4 and IPDM E/R harness connector F10 (B) terminal 76.

4. Check continuity between generator harness connector F7 (A) terminal 4 and ground.

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

NO >> Repair harness or connector between IPDM E/R and generator.

Charging system preliminary inspection

Inspection Procedure 1.CHECK BATTERY TERMINALS CONNECTION Check if battery terminals are clean and tight. Is the inspection result normal? YES >> GO TO 2 NO >> Repair battery termi ...

B Terminal circuit

Description The terminal “1” (B) circuit supplies power to charge the battery and operate the vehicles electrical system. Diagnosis Procedure 1.CHECK TERMINAL “1” CONNECTION 1. Turn ign ...

Other materials:

Engine cooling system
The engine cooling system is filled at the factory with a pre-diluted mixture of 50% Genuine NISSAN Long Life Antifreeze/ Coolant (blue) and 50% water to provide year-round antifreeze and coolant protection. The antifreeze solution contains rust and corrosion inhibitors. Additional engine cooling s ...

Front manual seat adjustment (if so equipped)
Your vehicle seats can be adjusted manually. For additional information about adjusting the seats, refer to the steps outlined in this section. WARNING Before driving the vehicle, return the seatback to an upright seating position after manually releasing it. Also, make sure the seat is locked in p ...

Air conditioner operation
Start the engine, turn thefan speed control dial to the desired position, and press thebutton to activate the air conditioner. When the air conditioner is on, cooling and dehumidifying functions are added to the heater operation. The air conditioner cooling function operates only when the engine i ...