Diagnosis Procedure
1. CHECK REAR WINDOW DEFOGGER SWITCH
Check rear window defogger switch.
Refer to DEF "Component Function Check".
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning parts.
2. CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
Refer to DEF "Component Function Check".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the malfunctioning parts.
3. CHECK REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Check rear window defogger power supply and ground circuit.
Refer to DEF "Component Function Check".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
REAR WINDOW DEFOGGER DOES NOT OPERATE BUT BOTH OF DOOR MIRROR DEFOGGER OPERATE
Diagnosis Procedure
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Check rear window defogger power supply and ground circuit.
Refer to DEF "Component Function Check".
Is the inspection result normal?
YES >> Refer to GI "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up. ...
Diagnosis Procedure 1. CHECK DOOR MIRROR DEFOGGER FUSE Check if the following fuse in fuse block (J/B) is blown. Is the inspection result normal? YES >> GO TO 2 NO >> If fuse is blo ...
Additional service when replacing
ECM
Description
When replacing ECM, the following procedure must be performed.
PROGRAMMING OPERATION
NOTE:
After replacing with a blank ECM, programming is required to write ECM
information. Be sure to follow the procedure
to perform the programming.
Work Procedure
1.CHECK ECM PART NUMBER
Che ...
U0155 Lost communication (IPC)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0155
Lost Communication With Instrument
Panel Cluster (IPC)
Control Module
When the ignition switch is ON,
TCM is unable to receive the
CAN communications ...