Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
  NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
2. 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.
  
  Does the scan tool display a red "X" next to the module?
  
  Yes
  - Go to step 2
  No
  - 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.
(F23) IGNITION RUN-START OUTPUT CIRCUIT OPEN OR SHORTED

Fig 1: Checking Ignition Run-Start Output Circuit Using 12-Volt Test Light Connected To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
  NOTE: Check the TIPM for any ignition related DTCs. If set, perform the appropriate DTC before proceeding.
2. Disconnect the Inside Rearview Mirror harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (F23) Ignition Run-Start Output circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go to step 3
  No
  - Repair the (F23) Ignition Run-Start Output circuit for an open or short.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(Z909) GROUND CIRCUIT OPEN

Fig 2: Checking Ground Circuit Using 12-Volt Test Light Connected To 12-Volts
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z909) ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go to step 4
  No
  - Repair the (Z909) ground circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(D55) AND (D54) CAN B BUS CIRCUITS OPEN

Fig 3: Measuring Voltage Between CAN B Bus (-) Circuit & Ground And Between CAN B Bus (+) Circuit & Ground
Courtesy of CHRYSLER LLC

NOTE: One open circuit will not cause this condition.
1. Measure the voltage between the (D54) CAN B Bus (-) circuit and ground.
2. Measure the voltage between the (D55) CAN B Bus (+) circuit and ground.
  Is there any voltage present on either circuit?
  
  Yes
  - Replace and program/calibrate the Inside Rearview Mirror (for smartbeam functions) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (D55) and (D54) CAN B Bus circuits for an open. Inspect the connector for damage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .