How to Clear DTC's
Once a fault has been corrected, the fault must be cleared from the Air
Suspension ECU (Z165) memory using the RTC 6834 handheld tester and the air suspension smart card. Follow the instructions given by the tester to clear the codes. The Air Suspension ECU's (Z165) memory cannot be cleared by disconnecting the battery. It should be noted that all faults must be displayed and corrected before the Air Suspension ECU (Z165) will allow its memory to be cleared.