( TL19E00G10110212033FAAT00 )

A/C Condenser Fan High Speed Circuit Troubleshooting

1. Connect the ECM/PCM connector A (44P) No. 5 terminal (R20A3 engine model) or ECM/PCM connector A (49P) No. 6 terminal (K24Z3 engine model) to body ground with a jumper wire.

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

Does the A/C condenser fan run on high?

YES | - | Check for loose wires or poor connections at ECM/PCM connector A (44P) No. 5 terminal (R20A3 engine model) or ECM/PCM connector A (49P) No. 6 terminal (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 | - | Go to Step 9 .

1. Turn the ignition switch to LOCK (0), then disconnect the jumper wire.

1. Reconnect ECM/PCM connector.

1. Remove the relay circuit board from the under-hood fuse/relay box, and test the A/C condenser fan relay.

Is the relay OK?

YES | - | Replace the under-hood fuse/relay box. ■
NO | - | Replace the relay circuit board.■