P0530-A/C Pressure Sensor Circuit Signal Voltage Too High; P0530-A/C Pressure Sensor Circuit Signal Voltage Too Low; P0530-A/C Pressure Sensor Circuit Supply Voltage Too High Or; Low - DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual

DRIVEABILITY - DIESEL
Symptom List:
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO
HIGH
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO

LOW

P0530-A/C PRESSURE SENSOR CIRCUIT SUPPLY VOLTAGE TOO
HIGH OR LOW
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0530-A/C PRESSURE SENSOR
CIRCUIT SIGNAL VOLTAGE TOO HIGH.
When Monitored and Set Condition:

P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH

When Monitored: With the ignition on.
Set Condition: The A/C Pressure Sensor Signal voltage is above 4.84 volts.

P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW

When Monitored: With the ignition on.
Set Condition: The A/C Pressure Sensor Signal voltage is below 0.15 volt.

P0530-A/C PRESSURE SENSOR CIRCUIT SUPPLY VOLTAGE TOO HIGH OR

LOW
When Monitored: With the ignition on.
Set Condition: The Sensor Reference Voltage B voltage to the A/C Pressure Sensor is
below 4.9 volts or above 5.1 volts for at least 100 ms.
INTERMITTENT CONDITION
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
A/C PRESSURE SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
A/C PRESSURE SENSOR
SENSOR REFERENCE VOLTAGE B CIRCUIT OPEN
A/C PRESSURE SENSOR SIGNAL CIRCUIT OPEN
SENSOR GROUND CIRCUIT OPEN
A/C PRESSURE SENSOR
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
POSSIBLE CAUSES
112