COMP Solenoid Error Is Indicated: Problem In the Variable Capacity Control Solenoid Valve Circuit
COMP Solenoid error is indicated: Problem in the Variable Capacity Control Solenoid Valve Circuit1. Clear the DTC by turning the ignition switch OFF, and then ON (II).
2. Start the engine, and turn on the A/C.
3. Measure the voltage of the battery.
Is there 11.5 V or more?
YES - Go to step 4.
NO - Charge the battery or replace it.
4. Turn off the A/C, and stop the engine.
5. Clear the DTC by turning the ignition switch OFF, and then ON (II).
6. Operate the climate control system in several modes.
7. Check for DTCs using the self-diagnostic.
Is DTC COMP solenoid error indicated?
YES - Go to step 8.
NO - Intermittent failure, check for loose wires or poor connections on the variable capacity control solenoid valve circuit.
8. Turn the ignition switch OFF.
9. Disconnect the climate control unit 40P connector.
10. Measure the resistance between the No. 3 and No. 4 terminals of the climate control unit 40P connector.
Is there about 10.6 Ohms?
YES - Go to step 11.
NO - Go to step 14.
11. Check for continuity between the No. 3 and No. 4 terminals of the climate control unit 40P connector and body ground individually.
Is there continuity?
YES - Go to step 12.
NO - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.
12. Disconnect the A/C compressor clutch 3P connector.
13. Check for continuity between the No. 3 and No. 4 terminals of the climate control unit 40P connector and body ground individually.
Is there continuity?
YES - Repair any short to body ground in the wire(s) between the climate control unit and the variable capacity control solenoid valve.
NO - The variable capacity control solenoid valve is faulty, replace the A/C compressor.
14. Disconnect the A/C compressor clutch 3P connector.
15. Check for continuity between the No. 3 and No. 4 terminals of the climate control unit 40P connector.
Is there continuity?
YES - Repair short in the wires between the climate control unit and the variable capacity control solenoid valve.
NO - Go to step 16.
16. Check for continuity between the given terminals of the climate control unit 40P connector and the A/C compressor clutch 3P connector.
Is there continuity?
YES - The variable capacity control solenoid valve is faulty, replace the A/C compressor.
NO - Repair any open in the wire(s) between the climate control unit and the variable capacity control solenoid valve.