Possible Causes
- A/C PRESSURE SENSOR VOLTAGE ABOVE 4.6 VOLTS
- (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO (K7) 5 VOLT SUPPLY CIRCUIT
- (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
- A/C PRESSURE SENSOR INTERNAL FAILURE
- (C18) A/C PRESSURE SIGNAL CIRCUIT OPEN
- (K4) SENSOR GROUND CIRCUIT OPEN
- PCM