DTC C1A36-13: Exhaust Valve - Circuit open: Action
- Refer to the appropriate system wiring diagram and check the exhaust valve circuit for open circuit, high resistance. Repair circuit as required, clear the DTCs and retest
- If the fault persists, check integrity of rear valve block connector. Repair or replace as required. Clear the DTCs and retest
- If the fault persists, install a new suspension air supply unit. Clear the DTCs and retest