2007 Commander XK Factory Service Manual 8 - ELECTRICAL

B221A-HEATED SEAT MODULE INTERNAL

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Ignition on.
Set Condition:
This code is set immediately if the Heated Seat Module internal self test fails.

Possible Causes

HEATED SEAT MODULE

Diagnostic Test

1. 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.