Nissan Altima 2007-2012 Service Manual: Front fog lamp circuit
Description
The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on inputs from the BCM over the CAN communication lines. When the front fog lamp relay is energized, power flows from the front fog lamp relay in the IPDM E/R to the front fog lamps.
Component Function Check
1.CHECK FRONT FOG LAMP OPERATION
1. Activate IPDM E/R auto active test. Refer to PCS-14, "Diagnosis Description".
2. Check that the front fog lamp is turned ON.
1. Select "EXTERNAL LAMP" of IPDM E/R active test item.
2. With operating the test items, Check that the front fog lamp is turned ON.
Is the front fog lamp turned ON? YES >> Front fog lamp circuit is normal.
NO >> Refer to EXL-46, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK FRONT FOG LAMP FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open? YES >> Repair the harness and replace the fuse.
NO >> GO TO 2
2.CHECK FRONT FOG LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front fog lamp connector.
3. Turn the ignition switch ON.
4. Select "EXTERNAL LAMP" of IPDM E/R active test item.
5. With EXTERNAL LAMP ON, check the voltage between the fog lamp connector and ground.
Is battery voltage present? YES >> GO TO 4
NO >> GO TO 3
3.CHECK FRONT FOG LAMP OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the front fog lamp harness connector.
Does continuity exist? YES >> GO TO 4
NO >> Repair the harnesses or connectors.
4.CHECK FRONT FOG LAMP GROUND CIRCUIT
1. Disconnect the front fog lamp connector.
2. Check continuity between the front fog lamp harness connector terminal and ground.
Does continuity exist? YES >> Inspect the fog lamp bulb.
NO >> Repair the harness.
Headlamp (xenon)
Description
The IPDM E/R (intelligent power distribution module engine room) controls the
headlamp low relay based on
inputs from the BCM over the CAN communication lines. When the headlamp ...
Parking lamp circuit
Description
The IPDM E/R (intelligent power distribution module engine room) controls the
tail lamp relay based on inputs
from the BCM over the CAN communication lines. When the tail lamp relay i ...
Other materials:
Drive belts
Checking Drive Belts
1. Power steering pump
2. Drive belt auto-tensioner
3. Crankshaft
4. Idler pulley
5. A/C compressor pulley
6. Generator pulley
7. Idler pulley
8. Drive belt
A. Indicator
B. Possible use range (for new belt)
C. Belt replacement
WARNING:
Inspect and check the drive ...
Satellite radio tuner
Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
Are the fuses OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Discon ...
Precautions in repairing high
strength steel
High Strength Steel (HSS)
High strength steel is used for body panels in order to reduce vehicle
weight.
Accordingly, precautions in repairing automotive bodies made of high strength
steel are described below:
SP130 is the most commonly used HSS.
Read the following precautions when re ...