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.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition from on to off 3 times.
4. Turn the ignition on.
5. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go to step 2
  No
  - The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CHECK TIPM DTCs
1. With the scan tool, read TIPM DTCs.
  Does the scan tool display the U0019-CAN B BUS DTC?
  
  Yes
  - Refer to the symptom list for problems related to Communication. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing
  No
  - Go to step 3
CAN B BUS (+) CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the Instrument Cluster C1 harness connector.
3. Disconnect the TIPM C5 harness connector.
4. Measure the resistance of the (D55) Can B Bus (+) circuit between the TIPM C5 harness connector and the Instrument Cluster C1 harness connector.
  Is the resistance below 2.0 ohms?
  
  Yes
  - Go to step 4
  No
  - Repair the Can B Bus (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CAN B BUS (-) CIRCUIT OPEN
1. Measure the resistance of the (D54) Can B Bus (-) circuit between the TIPM C5 harness connector and the Instrument Cluster C1 harness connector.
  Is the resistance below 2.0 ohms?
  
  Yes
  - Replace the Instrument Cluster 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 Can B Bus (-) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure