DTC P0532-A/C Pressure Sensor Circuit Low: Notes

Fig 1: A/C Pressure Sensor Circuit - Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

When Monitored:
Engine running, AC is learned, and AC Clutch Relay energized.
Set Condition:
The A/C pressure sensor signal voltage at the PCM goes below 0.58 of a volt for 2.6 seconds. One Trip Fault. Three good trips to turn off the MIL.

Possible Causes
(T103) 5-VOLT SUPPLY CIRCUIT OPEN
(T103) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
A/C PRESSURE TRANSDUCER
(C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
(C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO THE (G180) SENSOR RETURN CIRCUIT
FRONT CONTROL MODULE