Diesel Data: Automotive Repair

C1131




DTC C1131

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Troubleshooting

1.
Was "EPS System Check" performed?
YES -
Go to Step 2.
NO -
Go to "EPS System Check".

2. Rotation angle sensor circuit check

Confirm that the ignition mode of keyless push start system is in "OFF".
Disconnect P/S control module (rotation angle sensor/torque sensor) and rotation angle sensor connectors.
Check for proper connection to P/S control module and rotation angle sensor terminals.
Check "A1", "A2", "A3", "B1", "B2" and "B3" circuits between P/S control module and rotation angle sensor for broken wire and short to ground.

Are they in good condition?
YES -
Go to Step 3.
NO -
Repair or replace defective wire harness and recheck it.

3. Rotation angle sensor check

Check rotation angle sensor. Rotation Angle Sensor Inspection

Is it in good condition?
YES -
Substitute a known-good P/S control module and recheck DTC. Service and Repair
NO -
Replace rotation angle sensor (steering gear case assembly). Removal and Installation