Chrysler 300M 2002 Service Manual page 2647

DRIVEABILITY - NGC
Symptom:
P0532-A/C PRESSURE SENSOR LOW
When Monitored and Set Condition:
P0532-A/C PRESSURE SENSOR LOW
When Monitored: The engine running. The A/C relay energized.
Set Condition: The A/C pressure sensor signal voltage at the PCM goes below 0.58 volts
for 2.6 seconds. One Trip Fault.
INTERMITTENT CONDITION
5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
5 VOLT SUPPLY CIRCUIT OPEN
A/C PRESSURE SENSOR INTERNAL FAILURE
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
PCM 5 VOLT SUPPLY CIRCUIT
PCM A/C PRESSURE SENSOR SIGNAL
TEST
1 NOTE: Ensure the A/C refrigerant System is properly charged per the
Service Information.
Start the engine.
With the DRBIII , read the A/C Pressure Sensor voltage.
Is the voltage below 0.6 of a volt?
Yes → Go To 2
→ Go To 10
No
2 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Turn the ignition on.
Measure the voltage of the 5 Volt Supply circuit in the A/C Pressure Sensor harness
connector.
Is the voltage between 4.5 to 5.2 volts?
Yes → Go To 3
→ Go To 7
No
POSSIBLE CAUSES
ACTION
218
APPLICABILITY
All
All