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Preliminary Checks

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using a scan tool, check for Diagnostic Trouble Codes (DTCs) in the A/C-heater control, TIPM and PCM/ECM. If no DTCs are found, refer to  2. If any DTCs are found, repair as required.
  2. If the A/C clutch still will not engage, verify the refrigerant charge level by conducting the A/C Performance test. Refer to Diagnosis and Testing . If the refrigerant charge level is OK, refer to COIL RESISTANCE TEST  and COIL CURRENT DRAW TEST . If the refrigerant charge level is not OK, adjust the refrigerant charge as required.
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