Reference Values
TERMINAL LAYOUT

PHYSICAL VALUES

Audio unit
Bose speaker AMPRearView Monitor (if so equipped)
1. CAMERA button
WARNING
Failure to follow the warnings and instructions
for proper use of the Rear-
View Monitor system could result in serious
injury or death.
RearView Monitor is a convenience feature
and is not a substitute for proper
backing. Always turn and look out the
...
Power supply and ground circuit
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
Check continuit ...
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 ...