Diagnostic Test
WARNING: This page is about a different car, the 2012 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
- TEST FOR INTERMITTENT CONDITION NOTE:
Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
- Turn the ignition on.NOTE:
Make sure the battery voltage is between 10.0 and 16.0 volts.
- With the scan tool, read the module status.NOTE:
Check the BCM for any active CAN hardware DTCs, perform DTC before proceeding.
Does the scan tool indicate that the module is active on the bus?
Yes
- The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
- Perform the PCM VERIFICATION TEST. Refer to 3.6L - POWERTRAIN VERIFICATION TEST or 5.7L - POWERTRAIN VERIFICATION TEST or 6.4L - POWERTRAIN VERIFICATION TEST .
No
- Go To 2.
- Turn the ignition on.
- CHECK PCM POWER AND GROUND CIRCUITS
- Refer to DRIVEABILITY - DIESEL - DIAGNOSIS AND TESTING
and perform the CHECKING THE PCM POWER AND GROUND CIRCUITS diagnostic procedure.
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. Refer to 3.6L - POWERTRAIN VERIFICATION TEST or 5.7L - POWERTRAIN VERIFICATION TEST or 6.4L - POWERTRAIN VERIFICATION TEST .
No
- Go To 3.
- Refer to DRIVEABILITY - DIESEL - DIAGNOSIS AND TESTING
and perform the CHECKING THE PCM POWER AND GROUND CIRCUITS diagnostic procedure.
- CHECK THE (D64) AND (D65) CAN C BUS CIRCUITS FOR AN OPEN
- Turn the ignition off.
- Disconnect the Front CAN C Star Connector C7 harness connector.
- Measure the resistance of the (D65) CAN C Bus (+) circuit between the Front CAN C Star Connector C7 harness connector and the PCM C1 harness connector.
- Measure the resistance of the (D64) CAN C Bus (-) circuit between the Front CAN C Star Connector C7 harness connector and the PCM C1 harness connector.
Are the resistances below 5.0 Ohms?
Yes
- Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the PCM VERIFICATION TEST. Refer to 3.6L - POWERTRAIN VERIFICATION TEST or 5.7L - POWERTRAIN VERIFICATION TEST or 6.4L - POWERTRAIN VERIFICATION TEST .
No
- Repair the open in the (D65) or (D64) CAN C Bus circuit.
- Perform the PCM VERIFICATION TEST. Refer to 3.6L - POWERTRAIN VERIFICATION TEST or 5.7L - POWERTRAIN VERIFICATION TEST or 6.4L - POWERTRAIN VERIFICATION TEST .