Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
FUEL PUMP MODULE
1. Turn the ignition off.
2. Disconnect the Fuel Pump Module C1 harness connector.
3. Turn the ignition on.
4. Wait 30 seconds.
5. With the scan tool, read DTCs
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3.
  No
  - Replace the Fuel Pump Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
(N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO GROUND

Fig 1: Measuring Resistance Between Ground & Fuel Level Signal 1 Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cluster C2 harness connector.
3. Measure the resistance between ground and the (N4) Fuel Level Signal 1 circuit in the Fuel Pump Module C1 harness connector.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the short to ground in the (N4) Fuel Level Signal 1 circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Replace the Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .