B221C
B221C- MEMORY SEAT MODULE INTERNALFor the Heated Seat System circuit diagram (Refer to ELECTRICAL/HEATED SEATS - SCHEMATICS AND DIAGRAMS)
For a complete wiring diagram refer to Diagrams/Electrical.
WHEN MONITORED
Ignition on.
SET CONDITION
This code is set immediately if the Seat Memory Module internal self test fails.
POSSIBLE CAUSES
- Seat memory module
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1. VERIFY THAT DTC B221C- MEMORY 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.
Q: Does the DTC B221C-MEMORY SEAT MODULE INTERNAL reset?
YES: Replace the Seat Memory Module. Perform POWER SEAT SYSTEM VERIFICATION TEST -VER 1. Power Seat System Verification Test
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 POWER SEAT SYSTEM VERIFICATION TEST -VER 1. Power Seat System Verification Test