Diagnostic Test
- VERIFY THAT DTC B121A-RIGHT HEATED SEAT SWITCH HI INDICATOR CONTROL CIRCUIT HIGH IS ACTIVE
- With the scan tool, record and erase DTC's
- Operate the Heated Seat Switch in both positions several times.
- With the scan tool, read DTC's.
Does the DTC B121A-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset?
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 BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- DISCONNECT THE RIGHT HEATED SEAT SWITCH AND RE-READ DTC
- Disconnect the Right Heated Seat Switch connector.
- With the scan tool erase DTC's
- Cycle the ignition switch off then back on.
- With the scan tool, read DTC's.
Does the DTC B121A-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset?
Yes
- Go to step 3
No
- Replace the Right Heated Seat switch.
- Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE
Courtesy of CHRYSLER LLC
- Disconnect the Cluster C-3 connector.NOTE: Check connectors - Clean and repair as necessary.
- Turn the ignition on.
- Measure the voltage at the (P84) Right Heated Seat High Indicator Driver circuit at the Cluster C-3 connector.
Is there any voltage present?
Yes
- Repair the (P84) Right Heated Seat High Indicator Driver circuit for a short to battery.
- Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Replace the Cluster in accordance with the Service Information.
- Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- Disconnect the Cluster C-3 connector.