Diagnostic Test

WARNING: This page is about a different car, the 2020 Chrysler Voyager and 2020 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. Turn the Radio on.
3. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go to 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK FOR PCM DTCS
1. With the scan tool, read PCM DTCs.
2. Check for any Crankshaft related DTCs.
  Were there any Crankshaft DTCs found in the PCM?
  
  Yes
  - Refer to DTC INDEX and perform the appropriate diagnostic procedure.
  No
  - Go to 3
CHECK THE (X478) ANC BUFFERED CRANK POSITION (+) CIRCUIT AND (X479) ANC BUFFERED CRANK POSITION (-) CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Measure the resistance of the (X478) Crankshaft Pulse Signal (+) circuit and (X479) Crankshaft Pulse Signal (-) circuit between the PCM C1 harness connector and the Amplifier C5 harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Replace the Amplifier in accordance with the Service information. Refer to AMPLIFIER, REMOVAL AND INSTALLATION .
  - Go to 4
  No
  - Repair the (X478) Crankshaft Pulse Signal (+) circuit or the (X479) Crankshaft Pulse Signal (-) circuit for an open circuit or high resistance.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC
1. With the scan tool, erase DTCs.
2. Turn the Radio on.
3. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Replace the PCM in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.