Chrysler 2005 Crossfire SRT6 Service Manual page 4163

24 - 34 HEATING & AIR CONDITIONING - ELECTRICAL DIAGNOSTICS
A/C PRESSURE SENSOR CIRCUIT (CONTINUED)
When Monitored and Set Condition
• When Monitored: Engine Running with the A/C on.
• Set Condition: The A/C Heater Control Module detects an abnormally high or low voltage on the A/C Pressure
Sensor Signal circuit.
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO 5-VOLT SUPPLY CIRCUIT
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
A/C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
A/C PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT OPEN
A/C PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
A/C PRESSURE SENSOR
A/C PRESSURE SENSOR SIGNAL CIRCUIT OPEN
A/C PRESSURE SENSOR GROUND CIRCUIT OPEN
A/C HEATER CONTROL MODULE
For a complete HVAC Circuit Diagram, (Refer to 24 - HEATING & AIR CONDITIONING - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
READ A/C PRESSURE SENSOR VOLTAGE WITH DRB III
Note: Ensure the A/C refrigerant system is properly charged to
specifications.
Turn the ignition on.
With the DRB III , read the A/C Pressure Sensor voltage.
Is the voltage above 4.5 volts?
Yes >> Go to 2
No >> Go to 7
POSSIBLE CAUSES
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