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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 426 (5.7L - DTCS P058C To P1495 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P1206-Fuel Pump Control Module Open Circuit To Fuel Pump >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Turn the ignition on, engine not running.
    2. With the scan tool, read DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (N13) FPCM PUMP FEED CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the FPCM harness connector.
    3. Lower the Fuel Tank to gain access to the Fuel Pump Module harness connector.
    4. Disconnect the Fuel Pump Module harness connector.
    5. Measure the resistance of the (N13) FPCM Pump Feed circuit between the FPCM harness connector and the Fuel Pump assembly harness connector.

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  3

      No 

      • Repair the (N13) FPCM Pump Feed circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. CHECK THE (N14) FPCM PUMP RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (N14) FPCM Pump Feed circuit between the FPCM harness connector and the Fuel Pump assembly harness connector.

      Is the resistance below 5.0 ohms?

      Yes 

      • Replace the Fuel Pump assembly in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair the (N14) FPCM Control circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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