Commercial Service Tools

Precautions
BCM (Body control module))Parking, license plate and tail lamps
System Diagram
System Description
BCM (Body Control Module) controls parking, license plate and tail lamps
operation.
IPDM E/R (Intelligent Power Distribution Module Engine Room) operates
parking, license plate and tail lamps according to CAN communication
signals from BCM.
Comp ...
Main line between DLC and HVAC circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity between the data link connector and the A/C ...
U1243 display unit
DTC Logic
Diagnosis Procedure
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit
2.CHECK CONTINUITY OF COMMUNICATION CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M142 and AV control unit
connector M163.
...