C1155

DTC C1155: P/S Control Module Internal Failure

Wiring Diagram

Refer to C1153 DTC C1153: P/S Control Module Power Supply Circuit:Electric Type.

DTC Detecting Condition and Trouble Area






DTC Troubleshooting



1.
Was "EPS System Check" performed?
YES
Go to Step 2.
NO
Go to EPS System Check:Electric Type.

2. P/S control module power supply and ground circuit check

Check power supply circuit and ground circuit for P/S control module referring to P/S Control Module Power Supply and Ground Circuit Check P/S Control Module Power Supply and Ground Circuit Check:Electric Type.

Is check result in good condition?
YES
Go to Step 3.
NO
Repair or replace defective circuit.

3. Battery voltage check

Check voltage between positive (+) battery terminal and vehicle body ground with engine speed at 3000 rpm.

Is voltage 15.5 V or less?
YES
Replace P/S control module.
NO
Check charging system referring to Generator Test.