Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

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
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
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
  - Replace the Fuel Level Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK THE (N4) FUEL LEVEL SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking The Fuel Level Sensor Signal Circuit For A Short To Ground
Courtesy of CHRYSLER LLC
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
  - Repair the (N4) Fuel Level Sensor Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
CHECK FOR THE FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO THE (G109) FUEL LEVEL SENSOR RETURN CIRCUIT

Fig 2: Check For Fuel Level Sensor Signal Circuit For A Short
Courtesy of CHRYSLER LLC
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 .