DTC B14E1-94: Third Row Left Seat Heater - Unexpected operation: Action

NOTE: This DTC may be induced by the driver operating the seat heater switch for longer than 120 seconds.

Clear the DTC and retest. If the fault persists, check the operation of the third row left seat heater switch. If the switch is physically stuck, install a new third row left seat heater switch as necessary
Refer to the electrical circuit diagrams and check the third row left seat heater switch signal circuit for short circuit to ground. Repair the wiring harness as necessary, clear the DTC and retest
If the fault persists, install a new third row left seat heater switch as necessary