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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics)) >> DTC Troubleshooting >> P1274-A/C Clutch Control Circuit 2 Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. A/C CLUTCH OPERATION 
    1. Ignition on, engine not running.
    2. With a scan tool under the PCM Actuators, actuate the A/C Clutch.

      Is the A/C Clutch actuating?

      Yes 

      • Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to the appropriate Testing & Diagnostics article in Engine Performance .

      No 

      • Go To  2
  2. A/C CLUTCH CONTROL OPERATION FROM THE PCM 
    1. Turn the ignition off.
    2. Disconnect the TIPM C1 harness connector.
    3. Ignition on, engine not running.
    4. With the scan tool under the TPIM Actuators, actuate the A/C Clutch.
    5. With a 12-volt test light connected to ground, probe the (C13) A/C Clutch Control circuit in the TIPM C1 harness connector.

      Does the test light illuminate brightly and flash on an off?

      Yes 

      • Go To  3

      No 

      • Perform the diagnostic procedure for P0646-A/C CLUTCH CONTROL CIRCUIT LOW. Refer to DTC INDEX .
  3. (C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT OPEN 
    1. Turn the ignition off
    2. Disconnect the TIPM C10 harness connector.
    3. Disconnect the A/C Clutch harness connector.
    4. Measure the resistance of the (C3) A/C Clutch Control Output circuit between the TIPM C10 harness connector and the A/C Clutch harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the open in the (C3) A/C Clutch Control Output circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to the appropriate Testing & Diagnostics article in Engine Performance .
  4. A/C CLUTCH 
    Fig 1: Identifying A/C Clutch Connector Terminals
    GC0111455Courtesy of CHRYSLER GROUP, LLC
    1. Connect the TIPM C1 and C10 harness connectors.
    2. Ignition on, engine not running.
    3. With the scan tool under the TIPM Actuators, actuate the A/C Clutch.
    4. Using a 12-volt test light connected to ground, check the (C3) A/C Clutch Control Output circuit at the A/C Compressor Clutch harness connector.

      Does the test light illuminate brightly and flash on and off?

      Yes 

      • Replace the A/C Clutch in accordance with the Service Information. Refer to COMPRESSOR, A/C, REMOVAL .
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to the appropriate Testing & Diagnostics article in Engine Performance .

      No 

      • Go To  5
  5. TOTALLY INTEGRATED POWER MODULE (TIPM) 
    NOTE:

    Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

    1. Using the schematics as a guide, inspect the wire harness and connectors.
    2. Pay particular attention to all Power and Ground circuits.

      Were any problems found?

      Yes 

      • Repair as necessary.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to the appropriate Testing & Diagnostics article in Engine Performance .

      No 

      • Replace the Totally Integrated Power Module in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .