Chrysler 2005 Crossfire SRT6 Service Manual page 4164

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A/C PRESSURE SENSOR CIRCUIT (CONTINUED)
2.
MEASURE THE RESISTANCE FROM THE A/C PRESSURE SENSOR SIGNAL CIRCUIT TO THE 5-VOLT
SUPPLY CIRCUIT
Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the A/C Heater Control Module harness connector.
Note: Check connector - Clean/repair as necessary.
Measure the resistance from the A/C Pressure Sensor Signal circuit to
the 5-Volt supply circuit at the A/C Pressure Sensor harness connec-
tor.
Is the resistance below 5.0 ohms?
Yes >> Repair the A/C Pressure Sensor Signal circuit for a short
to the 5-Volt Supply circuit.
Perform BODY VERIFICATION TEST.
No >> Go to 3
3.
MEASURE THE VOLTAGE ON THE A/C PRESSURE SENSOR SIGNAL CIRCUIT
Turn the ignition on.
Measure the voltage on the A/C Pressure Sensor Signal circuit at the
A/C Pressure Sensor harness connector.
Is the voltage above 5.2 volts?
Yes >> Repair the A/C Pressure Sensor Signal circuit for a short
to battery voltage.
Perform BODY VERIFICATION TEST.
No >> Go to 4
4.
MONITOR A/C PRESSURE SENSOR VOLTAGE WITH DRB III
Turn the ignition off.
Connect a jumper wire between the A/C Pressure Sensor Signal circuit
and the Sensor ground circuit.
Turn the ignition on.
With the DRB III , monitor the A/C Pressure Sensor voltage.
Is the voltage below 1.0 volt?
Yes >> Replace the A/C Pressure Sensor. (Refer to 24 - HEAT-
ING & AIR CONDITIONING/CONTROLS/A/C PRESSURE
TRANSDUCER - REMOVAL).
Perform BODY VERIFICATION TEST.
No >> Go to 5
HEATING & AIR CONDITIONING - ELECTRICAL DIAGNOSTICS 24 - 35