Diagnostic Test

1) 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: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

With the scan tool, select ECU view.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

NOTE: Check the TIPM for any active CAN C hardware DTC's, perform DTC before proceeding.

Does the scan tool display a red X next to the module?

Yes
1. Go To step 2).
No
1. 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.
2) (A931) FUSED B(+) CIRCUIT OPEN OR SHORTED

Fig 1: Checking Fused B+ Circuit In PCM Harness Connector C1
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the PCM C1 harness connector.

Using a 12-volt test light connected to ground, check the (A931) Fused B(+) circuit.

Does the test light illuminate brightly?

Yes
1. Go To step 3).
No
1. Repair the (A931) Fused B(+) circuit for an open or short.
2. Perform the PCM VERIFICATION TEST .
3) (Z925) GROUND CIRCUIT OPEN

Fig 2: Checking PCM Ground Circuits
Courtesy of CHRYSLER LLC

Using a 12-volt test light connected to 12-volts, check the (Z925) ground circuit.

Does the test light illuminate brightly?

Yes
1. Go To step 4).
No
1. Repair the ground circuit for an open.
2. Perform the PCM VERIFICATION TEST .
4) (F202) IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED

Fig 3: Checking Fused Ignition Switch Output Circuit In PCM Harness Connector
Courtesy of CHRYSLER LLC

Turn the ignition on.

Using a 12-volt test light connected to ground, check the (F202) Ignition Switch Output circuit.

Does the test light illuminate brightly?

Yes
1. Go To step 5).
No
1. Repair the (F202) Ignition Switch Output circuit for an open or short.
2. Perform the PCM VERIFICATION TEST .
5) (D65) CAN C BUS (+) CIRCUIT OPEN

Fig 4: Measuring Resistance Of (D65) CAN C Bus (+) Circuit Between TIPM C3 Harness Connector And PCM C1 Harness Connector
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the TIPM C3 harness connector.

Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C3 harness connector and the PCM C1 harness connector.

Is the resistance below 5.0 ohms?

Yes
1. Go To step 6).
No
1. Repair the (D65) CAN C Bus (+) circuit for an open.
2. Perform the PCM VERIFICATION TEST .
6) (D64) CAN C BUS (-) CIRCUIT OPEN

Fig 5: Checking CAN C Bus (-) Circuit For Open
Courtesy of CHRYSLER LLC

Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C3 harness connector and the PCM C1 harness connector.

Is the resistance below 5.0 ohms?

Yes
1. Replace and program the Powertrain Control Module in accordance with the service information.
2. Perform the PCM VERIFICATION TEST .
No
1. Repair the (D64) CAN C Bus (-) circuit for an open.
2. Perform the PCM VERIFICATION TEST .