Check air suspension system problem

Hello Kathy,

Your Air Bag Light staying on is a warning that the system needs to be checked.

Some vehicles have a key actuated switch that controls passenger bag deployment, which is illuminated when active but instrument panel displays are a warning to the driver that something is wrong..

Check your owners manual for the complete details on the Air Bag System.

Turn Off Suspension Switch Before Jacking/Lifting Vehicle ...

repairpal.com > Problems > Lincoln > Navigator
Turn Off Air Suspension System Before Jacking/Lifting Vehicle on Lincoln Navigator. Prior to jacking or lifting a vehicle with air suspension, you must turn off thesuspension switch. The switch is generally located in the trunk or on the right side of the passenger foot well. RepairPal Verified.

GMC Envoy Air Suspension Sensor - YouTube

? 4:25
https://www.youtube.com/watch?v=mh8rieTxFEM
Sep 27, 2013 - Uploaded by klondikerabbit
In this video, I am trying to diagnose and adjust the rear air suspension sensors on a 2003 GMC Envoy. The ... images for envoy where is the air suspension switch

AIRBAG PROBLEM MUST BE EITHER THE DRIVERS SIDE OR PASSENGER SIDE {IDE AIRBAGS}LOCATED AT THE SEATS.THEY TEND TO LOOSE CONTACT AT THE CONNECTOR UNDER THE SEAT.AS FOR THE SUSPENTION U NEED TO HAVE THE CAR DIAGNOSED FROM SOMEONE WITH A PROGRAMM AND EXPERIENCE.IS THE CAR LOWERED?IF SO AIR LEAK IS WHAT I CAN TELL U ROUGHLY!!!!

Need a repair shop to diagnose the
air ride system
Can't guess form here,always need the
patient

Check the suspension switch on the trunk, I think is on the driver side, something should happen if you turn it on/off.

the reset switch is usally located either in the trunk on one of the side panels or on the passenger side under the dash on the kick panel

Air Suspension Compressor Motor/Vent Solenoid : Lower RH front corner of engine compartment C134
Air Suspension Switch : Rear side of trunk C458
Air Suspension/EVO Steering Module : Behind RH cowl panel, above connector bracket C204, C205
Air Suspension/EVO Test Connector : RH side of engine compartment, top of wheel well C117 Soft Ride Relay : Under center front of package tray C403Hard Ride Relay : Under center rear of package tray C404 sorry could not find compressor rely listed, good luck

Unplugging the Connector will cause the Check Suspension light to come on as its listed as a fault as it cant run.

But with it unplugged the compressor shouldnt been able to start. If you want to kill the compressor pull its relay from the engine bay. located above the battery.

But i'd suggest correcting the fault as if those bags do pop your going to end up being grounded. as the rear will drop a fair bit!

have you checked the fuel filter?

here's some info. Do you have a warning light on or does it say "Check Susp"?

Control Module
NOTE: The 4-wheel air suspension (4WAS) control module is also used for the rear air suspension (RAS) system. The internal processor recognizes external circuitry to determine if it is installed in a 4WAS or a RAS system.
NOTE: The air suspension control module is calibrated with information from the air suspension height sensors. A new or swapped air suspension control module requires the ride height adjustment calibration process to be performed.
A microcontroller-based electronic air suspension control module controls the air compressor motor (through a solid state relay), and all system solenoids. The air suspension control module also provides power to front and rear height sensors. The air suspension control module controls vehicle height adjustments by monitoring the two height sensors, vehicle speed, a steering sensor, acceleration input, the door ajar signal, transfer case signals, and the brake pedal position (BPP) switch. The air suspension control module also conducts all fail-safe and diagnostic strategies and contains self-test and communication software for testing of the vehicle and related components.
The air suspension control module is mounted in the passenger compartment inside the instrument panel, above the radio and temperature controls. The air suspension control module is interchangeable between the RAS and 4WAS system.
The air suspension control module monitors and controls the system through a 32-pin two-way connector. The air suspension control module is keyed so that it cannot be plugged into an incorrect harness. There are two sides of the harness connection to the air suspension control module. Each is uniquely colored and keyed to prevent reversing the connections.
Solenoid, Air Spring
WARNING: Never rotate an air spring solenoid valve to the release slot in the end cap fitting until all pressurized air has escaped from the spring to prevent damage or injury.
The air spring solenoid:

• Allows air to enter and exit the air spring during leveling operations.
• Is electrically operated and controlled by the air suspension control module.
• Is only replaced as a unit.

Air Suspension Diagnostic Connector
The air suspension diagnostic connector is used to aid the technician in diagnosing the air suspension system. It is also used to vent the system of compressed air when air suspension system components need to be repaired or replaced. The air suspension diagnostic connector is located under the steering column.
Steering Sensor
The steering sensor is mounted inside the passenger compartment on the steering column. It provides steering rate and position to the air suspension control module through two signals.
Pressure Relief Valve
The pressure relief valve (PRV) protects the rear air suspension components by venting the system to a specific pressure in the case of a system malfunction. The system will decrease the pressure to an acceptable level to maintain vehicle height. In the normal operation mode with normal system pressure the PRV is constantly closed and does not have any effect on the system performance or function. The PRV is replaceable without any air lines.
The PRV is located in the rear of the vehicle on the middle of crossmember #5 as a part of the rear air line assembly.