Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
NOTE:
If there are any ASD/Main Relay or system voltage DTCs present, diagnose those DTCs before proceeding with this test procedure.
1. Ignition on, engine not running.
2. With the scan tool, select View DTCs. Copy DTC and Freeze Frame information and clear DTCs.
  NOTE:
  Active or pending DTCs may not allow Fuel Pump actuation, ensure all DTCs are cleared before proceeding with this test procedure.
3. With the scan tool, actuate the Fuel Pump.
4. Monitor the scan tool for at least two minutes.
5. With the scan tool, select View DTCs.
  Is the status Active for this DTC?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
FUEL PUMP RELAY
1. Turn the ignition off.
2. Install a known good Fuel Pump Relay.
3. Turn the ignition on.
4. Using a scan tool, erase the DTC.
5. Attempt to start the engine.
  Does the DTC return?
  
  Yes
  - Replace the Fuel Pump Relay.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
(K31) FUEL PUMP RELAY CIRCUIT SHORTED TO GROUND BETWEEN THE PDC AND PCM

Fig 1: Checking Fuel Pump Relay Circuit For Short To Ground Between PDC & PCM
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the PDC C3 harness connector.
3. Disconnect the PCM C1 harness connector.
4. Measure the resistance between ground and the (K31) Fuel Pump Control circuit at the PCM C1 harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (K31) Fuel Pump Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
(K31) FUEL PUMP RELAY CIRCUIT SHORTED TO GROUND IN THE PDC
1. Turn the ignition off.
2. Remove the Fuel Pump Relay.
3. Measure the resistance between ground and the (K31) Fuel Pump Control circuit at the relay terminal.
  Is the resistance below 100 Ohms?
  
  Yes
  - Replace the PDC for an internal short to ground in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
(K31) FUEL PUMP RELAY CIRCUIT OPEN OR HIGH RESISTANCE BETWEEN THE PCM AND PDC
1. Measure the resistance of the (K31) Fuel Pump Control circuit between the PDC C3 harness connector and the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the open or high resistance in the (K31) Fuel Pump Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
(K31) FUEL PUMP RELAY CIRCUIT OPEN OR HIGH RESISTANCE IN THE PDC
1. Measure the resistance of the (K31) Fuel Pump Control circuit between the PDC C3 harness connector and the relay terminal.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Replace the PDC for an internal open in accordance with the service information.
  - 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 connectors between the Power Distribution Center (PDC) and 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 related connectors.
4. Perform any Technical Service Bulletins that may apply.
  Were 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 (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .