Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. 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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE FUEL LEVEL SENSE 1 VOLTAGE
1. With the scan tool, view the BCM Data Display.
2. Read the Fuel Level Sense 1 voltage.
  Is the voltage above 5.1 volts?
  
  Yes
  - Go To 3
  No
  - Go To 8
CHECK THE RESISTANCE OF THE (G109) FUEL LEVEL SENSE RETURN CIRCUIT
1. Turn the ignition off.
2. Disconnect the Fuel Pump Module C1 harness connector.
3. If equipped with AWD, disconnect the Fuel Pump Module C2 harness connector.
4. Measure the resistance of the (G109) Fuel Level Sense Return circuit between ground and the Fuel Pump Module C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Go To 4
CHECK THE (G109) FUEL LEVEL SENSE RETURN CIRCUIT FOR AN OPEN
1. Disconnect the Body Control Module E harness connector.
2. Measure the resistance of the (G109) Fuel Level Sense Return circuit between the Body Control Module E harness connector and the Fuel Pump Module C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 8
  No
  - Repair the (G109) Fuel Level Sense Return circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE VOLTAGE OF THE (N4) FUEL LEVEL SIGNAL 1 CIRCUIT
1. Turn the ignition on.
2. Measure the voltage between the (G109) Fuel Level Sense Return circuit and (N4) Fuel Level Sensor Signal circuit at the Fuel Pump Module C1 harness connector.
  Is there any voltage present?
  
  Yes
  - Go To 6
  No
  - Go To 7
CHECK FOR A SHORTED BCM WIRING HARNESS
1. Turn the ignition off.
2. Disconnect the BCM E harness connector.
3. At the BCM E harness connector, measure the resistance between the (N4) Fuel Level Sensor Signal circuit and every other pin in the harness connector.
  Is the resistance above 10k Ohms for all connections?
  
  Yes
  - Go To 8
  No
  - Repair the short in the (N4) Fuel Level Sensor Signal circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (N4) FUEL LEVEL SENSOR SIGNAL CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the BCM E harness connector.
3. Measure the resistance of the (N4) Fuel Level Sensor Signal circuit between the Fuel Pump Module C1 harness connector and the BCM E harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Fuel Level Sending Unit in accordance with the service information. Refer to SENDING UNIT AND SENSOR, FUEL LEVEL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the (N4) Fuel Level Sensor Signal circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
BODY CONTROL MODULE (BCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Fuel Pump Module and the BCM.
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 Fuel Pump Module and the BCM harness connectors.
4. Perform any Technical Service Bulletins (TSB)s that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .