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
WITHOUT CONSULT
CONSULT
FOG : Front fog lamp ON
OFF : Front fog lamp OFF
Diagnosis Procedure
1.CHECK FRONT FOG LAMP FUSE

2.CHECK FRONT FOG LAMP OUTPUT VOLTAGE
CONSULT


3.CHECK FRONT FOG LAMP OPEN CIRCUIT


4.CHECK FRONT FOG LAMP GROUND CIRCUIT

Check continuity between the front fog lamp harness connector terminal and ground.

Headlamp (LO) circuit
Parking lamp circuitBoth side headlamps (LO) are not turned on
Description
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis Procedure
1.CHECK COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH)
Check the combination switch (lighting and turn signal switch).
2.CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT
CONSULT DATA MONITOR ...
U1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each co ...
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect BCM.
Check voltage between BCM harness connector and ground.
3. CHECK GROUND CIRCUIT
Che ...