Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.

BCM branch line circuit
M&A branch line circuitInspection and adjustment
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
BEFORE REPLACEMENT
When replacing AV control unit, save current vehicle specification with
CONSULT configuration before
replacement.
AFTER REPLACEMENT
CAUTION:
When replacing AV con ...
Unit disassembly and assembly
FRONT REGULATOR
Exploded View
Door panel
Door glass
Regulator assembly
Door module assembly
Window motor
Disassembly
Remove the window motor from the door module assembly.
Remove the four window regulator bolts from the door module
assembly.
Remove the window regulat ...
B2553 ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...