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AWD disabled, why - Cars & Trucks

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Wheel sensor/bearing bad, wire by the bearing broken,ABS module bad, bad ground wire for the ABS pump, ABS pump bad, The actuator/switch in the rear differential is bad, the wire for the rear switch is broken, the clutches in the rear differential are worn out. No oil in the rear differential (which trashes out the differential). And the fuses could be blown. I think I have covered all of it. From older ones to newer ones.

Posted on Mar 27, 2015

  • Randy Ohler Mar 27, 2015

    Nope, sorry. Forgot one. The PCM could also be bad.

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1 Answer

2006 buick rendous awd the awd light comes on and says awd disabled what do i do to fix


Before you can fix this you need the system scanned for fault codes.

Apr 02, 2017 | 2006 Buick Rendezvous

1 Answer

What causes the all wheel drive to be disabled a 2005 uplander? there are no codes coming up.


Check switch that enable/disables it. If electronically controlled, it may use ABS, Traction control, power steering and gear mode data as it's input to enable/disable AWD. Check for error codes for these systems too. If all is OK, check operation of mechanical part such as AWD transfer box or the whole transmission for wear and tear. Some do have mode switch that driver can select between snow and normal or mud. If present check such item too.

Dec 29, 2016 | Cars & Trucks

2 Answers

Just bought 2003 Aztec and the AWD is disabled how do i know if something is wrong . We could not find AWD button ? ??


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.
Is the All-Wheel Drive Disabled Indicator Always On ?

Is

Oct 25, 2016 | Cars & Trucks

1 Answer

Why does the all-wheel drive keep disengaging when you need it?


Is the All-Wheel Drive Disabled Indicator on ?
An ABS DTC may cause the AWD Disabled light to illuminate. Check for ABS DTCs if no AWD fault is present.


?€¢
The AWD data list can be used to assist in determining which type of fault is causing the AWD Disabled Lamp to illuminate. with a scan tool, verify the above data displays are within specification.
?‡'
AWD temperature disables can be caused by an open circuit.

Using a scan tool, select the Body - Instrument Panel Cluster - Special Functions - Lamp Test mode. In the Lamp Test mode you can turn on or off the instrument panel indicators. All indicators will turn ON when commanded on and OFF when commanded off. The AWD DISABLE indicator should turn on or off as commanded.
?‡'
If the AWD DISABLE indicator is always ON or always OFF, replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.


The AWD disable lamp illuminates when one of the following conditions exists for 5 seconds:
?€¢
The PCM commands the solenoid ON and the voltage feedback remains high, B+.


?€¢
The PCM commands the solenoid OFF and the voltage feedback remains low, 0 volts. This condition is present for 3 key cycles.


?€¢
The PCM detects fluid temp is too high.


You need to have this hooked-up to a professional grade scan tool.

Mar 02, 2015 | 2003 Pontiac Aztek

1 Answer

2wd vs AWD


Page 13 of owner's manual says:
AdvanceTrac
(if equipped):
Illuminates when the AdvanceTrac
system is active. If the light remains
on, have the system serviced
immediately.
AWD locked (if equipped):
AWD
Illuminates when all wheel drive
LOCKED
(AWD) is engaged/activated. If the
light continues to flash, have the
system serviced.

Page 224:
ALL WHEEL DRIVE (AWD) SYSTEM (IF EQUIPPED)
Your vehicle may be equipped with an All Wheel Drive (AWD) transfer
case. With the AWD option, power is supplied to all four wheels
automatically with no need to shift between two-wheel drive and
four-wheel drive. If your vehicle is equipped with the AdvanceTrac
stability enhancement feature, you can change AWD modes, if desired,
by selecting AWD options through the message center.
For the lubricant specification and refill capacity of the AWD transfer
case refer to Maintenance and specifications chapter.
If your vehicle is equipped with AWD, a spare tire of a different
diameter than the road tires should never be used. Such a tire
could make the vehicle difficult to control as well as result in damage
to driveline components.
Utility and four-wheel drive vehicles are not designed for
cornering at speeds as high as passenger cars any more than
low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns or abrupt maneuvers in these
vehicles.
The following sections, Normal operation, Autolock operation and
Disabling AWD, apply only to vehicles which allow the driver to change
AWD modes through the message center.
Normal operation (vehicles equipped with AdvanceTrac
During normal operation:
• the AWD system is in AWD AUTO mode (AWD LOCKED will
illuminate in the message center for four seconds when you first start
your vehicle). The AWD LOCKED indicator in the instrument cluster
will also come on.
• AWD AUTO mode can be overridden by pressing SETUP in the
message center. When you first press SETUP, AWD <AUTO> will be
displayed, then if you press RESET within four seconds of pressing
SETUP, AWD <LOCKED> will be displayed. AWD <LOCKED> provides
power to all four wheels constantly which allows you to operate your
vehicle in severe winter or off-road conditions such as deep snow, ice
or shallow sand. It is not recommended that you use AWD <LOCKED>
on dry pavement.

Page 225:
• AWD <LOCKED> can be cancelled by pressing RESET in the message
center. (The AWD LOCKED display in the message center will then
turn off and the display will return to AWD <AUTO> for four seconds
when the shift is complete.)
Autolock operation (vehicles equipped with AdvanceTrac
If the AWD system begins to overheat, the system will place itself in the
Autolock mode:
• the AWD LOCKED indicator light will illuminate in the instrument
cluster and AWD DISABLED <LOCKED> will be displayed in the
message center.
• AWD LOCKED will be displayed in the message center for four
seconds and a warning chime will sound. This condition may clear
without any action being taken by the driver.
• the AWD LOCKED indicator light in the instrument cluster will turn
off when the AWD system cools down.
• When the system is sufficiently cooled down, AWD AUTO RESTORED
will appear in the message center for four seconds and a warning
chime will sound.
Disabling AWD (vehicles equipped with AdvanceTrac
When a problem is detected in the AWD system:
• the AWD LOCKED indicator light in the instrument cluster will flash
eight times every two minutes in the message center.
• The message center will then display AWD DISABLED for four
seconds, then SEE OWNER'S MANUAL. A warning chime will also
sound. The warning displays and chime will continue until RESET is
pressed (which will clear the message from the display).
• AWD LOCKED can still be engaged by pressing SETUP (the message
center will display AWD <DISABLED> LOCKED), then pressing
RESET. The AWD LOCKED indicator light will illuminate in the
instrument cluster and the message center will display AWD
DISABLED <LOCKED>.
• To disable AWD, press RESET. The system will go back to AWD AUTO
mode momentarily, then the AWD LOCKED indicator light will flash in
the instrument cluster eight times every two minutes. The display will
then show AWD <DISABLED> LOCKED for four seconds and then
turn off.

Page 226:
• If a serious problem occurs with the AWD system, the AWD LOCKED
indicator light in the instrument cluster will flash 10 times every two
minutes. The message center will also display CHECK AWD and a
warning chime will sound. You can press SETUP to check the status of
the AWD system (which will display AWD <DISABLED> LOCKED),
but the AWD system will be disabled until the system is serviced.
Driving off-road with truck and utility vehicles
AWD vehicles are specially equipped for driving on sand, snow, mud and
rough terrain and have operating characteristics that are somewhat
different from conventional vehicles, both on and off the road.
When driving at slow speeds off-road under high outside temperatures,
use 1 (First) gear when possible. 1 (First) gear operation will maximize
the engine and transmission cooling capability.
Under severe operating conditions, the A/C may cycle on and off to
protect overheating of the engine.

Nov 30, 2013 | Lincoln Navigator Cars & Trucks

2 Answers

Why is my awd disabled light and abs light comming on?


Most common repair to solve the AWD Disable light problem is replace flow valve on the rear differential and also replace 4 pints of VersaTrak at the same time. (I'm a retired GM engineer.)

Jul 04, 2012 | 2005 Buick Rendezvous

1 Answer

2001 Aztek showing the awd is disabled. Why and


CHECK AWD FUSE AND SCAN TO CHECK FOR SPEED SENSOR CODE.SPEED SENSOR CONTROLS AWD SHIFTS.

Mar 03, 2010 | 2001 Pontiac Aztek

1 Answer

2002 buick rendevous. awd disable and anti lock light on. will an obdii scanner tell me anything?


awd disable is usually a $200 tube type sensor in the rear diff. abs light is usually front hub bearing

Jan 20, 2010 | 2002 Buick Rendezvous

2 Answers

Awd disable light remains lit


Most common repair to solve the problem is replace flow valve on the rear differential and also replaced 4 pints of VersaTrak at the same time. (I'm a retired GM engineer.)

Nov 11, 2009 | 2006 Buick Rendezvous

5 Answers

I have a 2004 Pont. Aztek. The AWD Disabled light is on


AWD Light is caused by your Rear Wheel Hub(s) one or both are going bad. Dealer cost is $500.00 part at Auto Zone is $129.00. Not to difficult to replace if you are some what mechaniclly knowledgable

May 03, 2009 | 2004 Pontiac Aztek

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