ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM
Wiring Diagram



ECU diagnosis information
Symptom diagnosisBCM (body control module)
Reference Value
NOTE:
The Signal Tech II Tool (J-50190) can be used
to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS
transmitter IDs
Display tire pressure reported by
the TPMS transmitter
...
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 ...
AV branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the AV control unit for
damage, bend and loose connection (unit
side and connector side).
2.CHECK HARNESS FOR OPEN CIRC ...