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.

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(D704) PARK ASSIST SENSOR 10 SIGNAL CIRCUIT SHORTED TO BATTERY

Fig 1: Measuring Voltage Of Park Assist Sensor Signal Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Park Assist Module C2 harness connector.
3. Disconnect the Park Assist Sensor harness connector.
4. Turn the ignition on.
5. Measure the voltage of the (D704) Park Assist Sensor 10 Signal circuit.
  Is the voltage above 10.0 volts?
  
  Yes
  - Repair the (D704) Park Assist Sensor 10 Signal circuit for a short to battery.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
(D704) PARK ASSIST SENSOR 10 SIGNAL CIRCUIT SHORTED TO THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT

Fig 2: Measuring Resistance Between Park Assist Sensor Signal Circuit & Park Assist Sensor Supply Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Measure the resistance between the (D704) Park Assist Sensor 10 Signal circuit and the (X700) Park Assist Sensor Supply circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (D704) Park Assist Sensor 10 Signal circuit for a short to the (X700) Park Assist Sensor Supply circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
(X750) PARK ASSIST SENSOR GROUND CIRCUIT OPEN

Fig 3: Checking Resistance Between Ground & Park Assist Sensor Ground Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Reconnect the Park Assist Module C2 harness connector.
2. Measure the resistance between ground and the (X750) Park Assist Sensor Ground circuit.
  Is the resistance above 20.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Replace the Park Assist Sensor in accordance with the Service Information. Refer to SENSOR, PARK ASSIST, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(X750) PARK ASSIST SENSOR GROUND CIRCUIT OPEN BETWEEN PARK ASSIST MODULE AND SENSOR

Fig 4: Checking Resistance Of Park Assist Sensor Ground Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Park Assist Module C2 harness connector.
2. Measure the resistance of the (X750) Park Assist Sensor Ground circuit.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the open in the (X750) Park Assist Sensor Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Park Assist Module in accordance with the Service Information. Refer to SENSOR, PARK ASSIST, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .