( TL19E00G10110112012FAAT00 )

A/C Compressor Clutch Circuit Troubleshooting

1. Connect the ECM/PCM connector A (44P) No. 14 terminal (R20A3 engine model) or ECM/PCM connector A (49P) No. 15 terminal (K24Z3 engine model) to body ground with a jumper wire.

1. Turn the ignition switch to ON (II).

Does the A/C compressor click?

YES | - | Check for loose wires or poor connections at ECM/PCM connector A (44P) (R20A3 engine model) or ECM/PCM connector A (49P) (K24Z3 engine model). If the connections are good, substitute a known-good ECM/PCM, and recheck. If the symptom/indication goes away, replace the original ECM/PCM, R20A3 engine model, K24Z3 engine model. ■
NO | - | Repair open in the wire between the A/C compressor clutch relay and the ECM/PCM.■

1. Disconnect the jumper wire.

1. Disconnect the A/C compressor clutch 3P connector.