Description
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on inputs from the BCM over the CAN communication lines. When the headlamp high relay is energized, power flows through fuses 41 and 42, located in the IPDM E/R. Power then flows to the front combination lamps to the headlamp high beam.
Component Function Check
1.CHECK HEADLAMP (HI) OPERATION
WITHOUT CONSULT
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
CONSULT
HI : Headlamp switches to the high beam.
OFF : Headlamp OFF
Is the inspection result normal? YES >> Headlamp (HI) circuit is normal.
NO >> Refer to EXL-88, "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to EXL-33, "Wiring Diagram".
1.Check headlamp (HI) Fuses
Is the fuse blown? YES >> Replace the fuse after repairing the affected circuit.
NO >> GO TO 2.
2.Check headlamp (HI) output voltage
Consult active test
Is the inspection result normal? Yes >> go to 4.
No >> go to 3.
3.Check headlamp (hi) circuit for open
Is the inspection result normal? Yes >> replace ipdm e/r. Refer to pcs-30, "removal and installation" (with intelligent key system) or pcs-58, "removal and installation" (without intelligent key system).
No >> repair or replace the harness or connector.
4.Check front combination lamp (hi) ground circuit
Check continuity between the front combination lamp harness connector terminal and ground.
Is the inspection result normal? YES >> Inspect the headlamp bulb.
NO >> Repair or replace the harness or connector.
Ecu diagnosis information
Ipdm e/r (intelligent power distribution module engine room)
Reference Value
Values on the diagnosis tool
Terminal layout
Physical values
Fail-Safe
Can communication control
When can communication with ecm and bcm is impossible, ipdm e/r performs
fail-safe ...
Removal and installation
BCM
Removal and installation
Note:
Before replacing BCM, perform “READ CONFIGURATION” to save or print
current vehicle specification. Refer
to BCS-61, "CONFIGURATION (BCM) : Description".
Removal
Disconnect the negative battery terminal. Refer to pg-52, "removal a ...
VDC OFF Indicator lamp
Description
Component Function Check
1.CHECK VDC OFF INDICATOR LAMP FUNCTION
Check that VDC OFF indicator lamp in combination meter turns ON
for approximately 2 seconds after ignition
switch is turned ON.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proc ...