A/C Signal Circuit Troubleshooting
  1. R20A3 engine model: Measure the voltage between the A/C compressor 3P connector No. 1 and No. 3 terminals. K24Z3 engine model: Measure the voltage between the A/C compressor 3P connector No. 1 and No. 2 terminals.
Is there continuity?
YES -
Repair open in the wire between the A/C compressor and the climate control unit.■
NO -
Replace the thermal protector.■