DTC C1034-94: Left Switch - 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 rear left seat heater switch. If the switch is physically stuck, install a new rear integrated control panel as necessary
Refer to the electrical circuit diagrams and check the rear 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 rear integrated control panel as necessary