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AWD Disable indicator
The AWD Disable indicator is located in the instrument panel cluster. This lamp is used to inform the driver that the AWD system has been disabled and no torque will be applied to the rear wheels during a slip condition. The AWD Disable indicator is controlled by the powertrain control module via a class 2 message.
Powertrain Control Module
The powertrain control module monitors the data from the ABS controller and Rear Drive Module (RDM) for proper operating conditions. If inappropriate conditions are present the PCM commands the differential clutch pump actuator check valve closed, disabling the AWD system. The PCM also commands the AWD Disable indicator on.
All-Wheel Drive Disabled Indicator Always On ?
Hi! Matt, Most likely if the anti-lock brake light and the awd disable light come on at the same time a wheel bearing / wheel speed sensor assembly is faulty.Listen for a humming noise when driving and try to determine where it is coming from(left/right/front/ back) or any looseness/play in any wheel. That's the possible bearing/wheel speed sensor causing the problem. Or have the abs system scanned to determine which wheel sensor is reading incorrectly.If the awd disable light is off then the awd system should be funtioning.
Generally not, you will hear a low rumbling vibrational sound when you are driving. Sometimes when you accelerate your wheel will feel like it is moving up and down.
If your ABS and AWD lock lights come on, you need to get your vehicle looked at and diagnosed.
You have a bad wheel bearing assembly. The bearing is starting to seize up, and it is telling computer there is a problem in ABS system, as well as AWD system.
First thing is to locate which bearing it is in the front end of the vehicle.
1)Jack up each side of the front end, place a safety support stand or jack stand under frame of vehicle. 2)Once vehicle wheel is free from ground spin the wheel and listen for grinding. 3)Compare each wheel as you spin and make your best judgment on which is more noisy. 4)This is your problem wheel you need to remember which side of the vehicle is the source of problem when ordering the part from your local auto parts store.
To repair: Remove wheel, remove brake caliper, then brake caliper bracket, then the rotor, remove center axle nut, then remove bolts for wheel bearing hub assembly. Your ABS and AWD lights will reset themselves upon successful test drive following repair. Let me know if you need more assistance or pictures. Good Luck, have a great day.
CHECK ABS FUSE AND RELAY.THE AWD CONTROLED BY SPEED SENSORS ONE IN THE FRONT OUT PUT SHAFT SECOND SPEED SENSOR IN THE REAR OUT PUT SHAFT THIRD SPEED SENSOR IS VECHICLE SPEED SENSOR.BEST TO HAVE VECHICLE FIX AT A GARAGE OR DEALERSHIP YOU WILL NEED DIAGNOSTIC EQUIPMENT TO WORK ON IT.
SOUND LIKE PROBLEMS IN THE EBTCM OR THE ELECTRONIC BRAKE CONTROL MODULE AND TRACTION CONTROL MODULE.ALL YOU CAN DO IS CHECK ABS FUSES AND RELAYS.IF ALL IS GOOD THE DEALERSHIP HAS TO USE A TECH SCANNER TO FIX THE PROBLEM.