Possible Causes
- A/C Pressure Sensor Voltage Below 0.6 Volt
- (K7) 5-Volt Supply Circuit Shorted To Ground
- (K7) 5-Volt Supply Circuit Open
- A/C Pressure Sensor Internal Failure
- (C18) A/C Pressure Signal Circuit Shorted To Ground
- (C18) A/C Pressure Signal Circuit Shorted To (K4) Sensor Ground Circuit
- PCM (K7) 5-Volt Supply Circuit
- PCM A/C Pressure Sensor Signal