Diesel Data: Automotive Repair

Without Climate Control




The A/C compressor clutch and the A/C condenser/radiator fans are inoperative, but the blower and heater controls work

Probable cause: A/C pressure sensor circuit malfunction

Do the A/C pressure sensor troubleshooting:

A/C pressure sensor circuit low voltage DTC Troubleshooting

A/C pressure sensor circuit high voltage DTC Troubleshooting

NOTE: The A/C pressure sensor can malfunction without setting a DTC

Also Check for

HVAC DTCs How To Troubleshoot The Heating and A/C Systems

Also Check for

Powertrain DTCs

Also Check for

A/C signal circuit troubleshooting A/C Signal Circuit Troubleshooting (Without Climate Control System)

Also Check for

Poor or loose connections at the terminals