Test M: The Air Suspension Indicator Is Never/Always On (If Equipped)

PINPOINT TEST M: THE AIR SUSPENSION INDICATOR IS NEVER/ALWAYS ON (IF EQUIPPED)

M1-M4:

Normal Operation
The air suspension warning indicator flashes and then stays on with the ignition switch in the RUN position and the air suspension service switch turned off or when a system malfunction is detected. The instrument cluster receives the air suspension status message from the air suspension module over the high speed controller area network (HS-CAN). If a fault occurs in the air suspension system, a DTC is set and the air suspension module sends a CAN message to the instrument cluster to illuminate the air suspension indicator.

Possible Causes
- Air suspension system
- Air suspension module
- Instrument cluster