C1142

DTC C1141 / C1142 / C1143 / C1145: Motor Circuit Failure

DTC C1141: P/S Motor Circuit Voltage

DTC C1142: P/S Motor Circuit Range/Performance

DTC C1143: P/S Motor Circuit Current Too High

DTC C1145: P/S Motor Circuit Current Too Low

Wiring Diagram










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. DTC check

Is DTC C1153 and/or C1155 indicated, together?
YES
Go to applicable DTC troubleshooting.
NO
Go to Step 3.

3. Power supply and ground circuit check

Check P/S control module power supply and ground circuit 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 it in good condition?
YES
Go to Step 4.
NO
Repair or replace defective circuit.

4. Motor circuit check

With ignition switch turned OFF, disconnect P/S control module connector No.3 and P/S motor connector.
Check P/S control module connector and P/S motor connector for proper connection.
If OK, check for open, short and/or high resistance in motor circuit between P/S control module and P/S motor referring to Electrical Circuit Inspection Procedure Electrical Circuit Inspection Procedure.

Are they in good condition?
YES
Go to Step 5.
NO
Repair motor circuit.

5. P/S motor check

Check P/S motor referring to P/S Motor Assembly Inspection P/S Motor Assembly Inspection:Electric Type.

Is P/S motor in good condition?
YES
Substitute a known-good P/S control module and recheck.
NO
Replace the steering gear case assembly and recheck.