Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using the scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Cycle the ignition from on to off three times.
4. Turn the ignition on.
5. Using the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK TIPM DTCS
1. Using the scan tool, read TIPM DTCs
  Does the scan tool display any CAN B BUS DTCs - ACTIVE?
  
  Yes
  - Perform the appropriate diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing .
  No
  - Go to step 3
CAN B BUS (+) CIRCUIT OPEN

Fig 1: Checking CAN B Bus (+) Circuit For Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Heated Seat Module 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 Heated Seat Module 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

Fig 2: Checking CAN B Bus (-) Circuit For Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (D54) Can B Bus (-) circuit between the TIPM C5 harness connector and the Heated Seat Module harness connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Replace the Heated Seat Module 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 .