B2992

DTC B2992 or DTC indicator S: An Open in the Thermal Protector Circuit

1. Clear the DTC by turning the ignition switch OFF, and then start the engine.
2. Operate the climate control system in several modes.
3. Check for DTCs using the HDS or self-diagnostic.

Is DTC B2992 or S indicated?

YES - Go to step 4.

NO - Intermittent failure, check for loose wires or poor connections on the thermal protector circuit.

4. Turn the ignition switch OFF.
5. Disconnect the A/C compressor clutch 3P connector.




6. Connect the A/C compressor clutch 3P connector terminals No. 1 and No. 3 with a jumper wire.
7. Start the engine, and push the A/C ON.
8. Check for DTCs using the HDS or self-diagnostic.

Is DTC B2992 or T indicated?

YES - Go to step 9.

NO - Check for an open in the wire(s) between the A/C compressor clutch 3P connector female terminals No. 1 and No. 3 and check the A/C compressor clutch and the thermal protector.

9. Turn the ignition switch OFF.
10. Disconnect the jumper wire.
11. Disconnect audio-HVAC display panel connector A (22P).




12. Check for continuity between the following terminals of audio-HVAC display panel connector A (22P) and the A/C compressor clutch 3P connector.

Is there continuity?

YES - Substitute a known-good audio-HVAC display panel, and recheck. If the symptom/indication goes away, replace the original audio-HVAC display panel.

NO - Repair open in the wire(s) between the audio-HVAC display panel and the A/C compressor.