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 low relay is energized, power flows through fuses 51 and 52, located in the IPDM E/R. Power then flows to the front combination lamps to the headlamp low beam.
Component Function Check
1.CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT
NOTE: HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
CONSULT
LO : Headlamp ON
OFF : Headlamp OFF
Diagnosis Procedure
1.CHECK HEADLAMP (LO) FUSES
2.CHECK HEADLAMP (LO) OUTPUT VOLTAGE
CONSULT
3.CHECK HEADLAMP (LO) CIRCUIT FOR OPEN
4.CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT
Check continuity between the front combination lamp harness connector terminal and ground.
TCM branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and
loose connection (unit side and connector
side).
TCM
Harness connector F1
Harness con ...
ECU diagnosis information
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
Fail Safe
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs
fail-safe control. After CA ...
Driver side door mirror defogger does not operate
Diagnosis Procedure
1. CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
PASSENGER SIDE DOOR MIRROR DEFOGGER DOES NOT OPERATE
Diagnosis Procedure
1. CHECK DOOR MIRROR DEFOGGER RH
Check door mirror defogger RH.
REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WINDOW
DEFOGGER O ...