Diagnostic Test
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
Perform BODY VERIFICATION TEST - VER 1 .
- 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 - VER 1 .
- Yes:
Replace the Heated Seat Module.