ZDX V6-3.7L (2010)
Is there a clicking noise from the A/C compressor clutch?
YES -
Update the PCM if it does not have the latest software See: Testing and Inspection/Programming and Relearning/PCM Update, or substitute a
known-good PCM See: Testing and Inspection/Initial Inspection and Diagnostic Overview, then recheck. If the symptom/indication goes away and the
PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the PCM was substituted, replace the original PCM See:
Engine Control Module/Service and Repair.
NO -
Check for poor connections or loose terminals at the A/C clutch relay and the PCM. If the connections and the terminals are OK, check the A/C clutch
relay See: Power and Ground Distribution/Testing and Inspection. If needed, repair an open in the wire between the PCM (A13) and the A/C clutch
relay or the other A/C parts.
