POWER SUPPLY AND GROUND CIRCUIT AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
2.POWER SUPPLY CIRCUIT CHECK
3.GROUND CIRCUIT CHECK
Inspect audio unit case ground.
SUBWOOFER AMP
SUBWOOFER AMP : Diagnosis Procedure
1.CHECK FUSE
Check for blown fuses.
2.CHECK POWER SUPPLY CIRCUIT
3.CHECK GROUND CIRCUIT
Check continuity between subwoofer amp harness connector and ground.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
2.POWER SUPPLY CIRCUIT CHECK
3.GROUND CIRCUIT CHECK
BLUETOOTH CONTROL UNIT
BLUETOOTH CONTROL UNIT : Diagnosis Procedure
1.CHECK FUSE
Check that the following fuses of the Bluetooth control unit are not blown.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between Bluetooth control unit harness connector and ground.
3.CHECK GROUND CIRCUIT
MICROPHONE
MICROPHONE : Diagnosis Procedure
1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
Check voltage between microphone harness connector and ground.
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
3.CHECK GROUND CIRCUIT
Door switch
Description
Detects door open/close condition.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check door switches DOOR SW-DR, DOOR SW-AS, DOOR SW-RL, DOOR SW-RR in Data
Monitor mode
with CONSULT.
Diagnosis Procedure
1. CHECK DOOR SWITCH INPUT SIGNAL
Turn ignition sw ...
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 ...
A-bag branch line circuit
Diagnosis Procedure
WARNING:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch OFF, disconnect battery negative
terminal, and wait 3 minutes or more. (To discharge backup capacitor.)
Never use unspecified tester or other measu ...