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Home >> Chrysler >> 2004 >> Crossfire Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> (Nag1 Automatic Transmission - Electrical Diagnostics) >> Diagnosis And Testing >> DTC P0748: Modulating Pressure Solenoid Circuit >> Diagnostic Test >> 3. Modulating Pressure Solenoid Control Circuit Open

3. Modulating Pressure Solenoid Control Circuit Open

Turn the ignition off.

Disconnect the Transmission Control Module C2 harness connector.

Disconnect the Transmission Solenoid Assembly harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Modulating Pressure Solenoid Control circuit from the TCM C2 harness connector to the Transmission Solenoid Assembly harness connector.

Fig 1: Measuring Resistance Of Modulating Pressure Solenoid Control Circuit
G01859416Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms? 

  1. Yes  >> Go To 4
  2. No  >> Repair the Modulating Pressure Solenoid Control circuit for an open.

    See TRANSMISSION VERIFICATION TEST .

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