DTC B12C9-4A: LIN Bus E - Incorrect component installed: Action

NOTE: This DTC will log if any component on the LIN bus E is incorrectly installed. To confirm the cause of the fault, each component must be checked individually

Refer to the appropriate SYSTEM WIRING DIAGRAMS information and disconnect each component on LIN bus E individually, clear the DTC and retest. If no other LIN bus E DTCs are logged, replace the incorrect component as necessary, clear the DTC and retest