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 DIAGNOSTIC TROUBLE CODE (DTC)
1. Ignition on, engine not running.
2. With a scan tool, select View DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION Diagnostic Procedure. Refer to INTERMITTENT CONDITION .
CAN B BUS HARDWARE DTCS ALSO ACTIVE
1. With a scan tool check for DTCs in the TIPM.
  Are any CAN B Hardware related DTCs active at this time?
  
  Yes
  - Perform the appropriate diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
FUEL LEVEL SENSOR

Fig 1: Fuel Pump Module Electrical Harness Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Fuel Pump Module electrical harness connector.
3. Ignition on, engine not running.
4. Connect a jumper wire between the (N4) Fuel Level Signal circuit and the (Z210) Ground circuit in the Fuel Pump Module harness connector.
5. Using the scan tool, read the Fuel Level Sensor voltage.
  Did the Fuel Level Sensor voltage change from above 4.8 Volts to below 0.4 of a Volt with the jumper wire installed?
  
  Yes
  - Replace the Fuel Level Sensor.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4.
    NOTE:
    Remove the jumper wire before continuing.
(N4) FUEL LEVEL SIGNAL CIRCUIT OPEN

Fig 2: Measuring Resistance Of (N4) Fuel Level Signal Circuit From Fuel Pump Module Harness Connector To C4 Cluster Harness Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the C4 Cluster harness connector.
3. Measure the resistance of the (N4) Fuel Level Signal circuit from the Fuel Pump Module harness connector to the C4 Cluster harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the open in the (N4) Fuel Level Signal circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
(Z210) GROUND CIRCUIT OPEN

Fig 3: Measuring Resistance Of (Z210) Ground Circuit From Fuel Pump Module Harness Connector To C3 Cluster Harness Connector
Courtesy of CHRYSLER LLC
1. Disconnect the C3 Cluster harness connector.
2. Measure the resistance of the (Z210) Ground circuit from the Fuel Pump Module harness connector to the C3 Cluster harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Repair the open in the (Z210) Ground circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connector at the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Powertrain Control Module connectors.
4. Perform any Technical Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace and program the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .