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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (6.7L Diesel - DTCS P0402 To P1CEF - 2500 & 3500) >> Diagnosis and Testing >> P0462-Fuel Level Sensor 1 Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With the scan tool check for active DTCs.

      Is the DTC active?

      Yes 

      • Go To  2.

      No 

  2. CHECK THE FUEL LEVEL SENSOR 
    1. Ignition on, engine not running.
    2. Disconnect the Fuel Pump Module harness connector.
    3. With the scan tool check for DTC P0463.

      Did DTC P0463 set after unplugging sensor?

      Yes 

      No 

      • Go To  3.
  3. CHECK THE FUEL LEVEL SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Turn ignition off.
    2. Disconnect the TIPM C7 harness connector.
    3. Measure the resistance between ground and the (N4) Fuel Level Sensor Signal circuit at the TIPM C7 harness connector.

      Is the resistance below 10k Ohms?

      Yes 

      No 

      • Go To  4.
  4. CHECK FOR THE FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO THE (G109) FUEL LEVEL SENSOR RETURN CIRCUIT 
    1. Measure the resistance between the (N4) Fuel Level Sensor Signal circuit and the (G109) Fuel Level Sensor Return circuit at the TIPM C7 harness connector.

      Is the resistance below 10k Ohms?

      Yes 

      • Repair the short between the (N4) Fuel Level Sensor Signal circuit and the (G109) Fuel Level Sensor Return circuit.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .