A/C Condenser Fan High Speed Circuit Troubleshooting
  1. Connect the ECM connector A (44P) terminal No. 5 to body ground with a jumper wire.
  1. Turn the ignition switch ON (II).
Does the A/C condenser fan run on high?
YES -
Check for loose wires or poor connections at ECM connector A (44P) terminal No. 5. If the connections are good, substitute a known-good ECM, and recheck. If the symptom/indication goes away, replace the original ECM. ■
NO -
Replace the under-hood fuse/relay box. ■