Diagnostic Test
- VERIFY THAT DTC B221A-HEATED SEAT MODULE INTERNAL IS ACTIVE
- With the scan tool, record and erase DTC's.
- Cycle the ignition switch off then back on.
- With the scan tool, read DTC's.
Does the DTC B221A-HEATED SEAT MODULE INTERNAL reset?
Yes
- Replace the Heated Seat Module in accordance with the Service Information.
- Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- The conditions that caused this code to set are not present at this time. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .