Question about 2005 Hummer H2

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Air suspension service light on - 2005 Hummer H2

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This would be a good indication to get the suspension checked..

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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2002 GMC Envoy Leveling system out on back passenger side. What can be done to fix it?


Would need to find out what's wrong first ! The air shock could be bad , ride hight sensor , air line could be broke etc...
The air suspension compressor assembly has the ability to detect faults and indicate the appropriate fault code via a blink code on the inflator switch LED. Is the light on ?
The air suspension compressor assembly will indicate the code when the condition that caused the code is current. In some instances the air suspension compressor assembly may set a flag that requires the ASCM to be reset. The ASCM will reset on its own after the ignition has been turned off for more than 2 1/2 hours or if the air suspension fuse has been removed with the ignition key turned off.

Perform a visual inspection checking for the following:
• Disconnected or damaged air lines.
• Disconnected or damaged air sensor link.
• Disconnected or damaged electrical harness

Trim Height Uneven or Low
Step
Action
Yes
No
Schematic Reference: Suspension Controls Schematics
1
Did you perform the Air Suspension Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Air Suspension
2
Did you review the Air Suspension Description and Operation?
YES - Go to Step 3
NO - Go to Air Suspension Description and Operation
3
Perform a visual inspection checking for the following:
• Disconnected or damaged air lines.
• Disconnected or damaged air sensor link.
• Disconnected or damaged electrical harness.
Did you find and correct the condition?
YES - Go to Step 9
NO - Go to Step 4
4
Cycle the rear compartment inflator switch.
Does the compressor operate?
YES - Go to Step 5
NO - Go to Inflator Inoperative
5
Check the vehicle D-height . Refer to Trim Height Specifications and Trim Height Inspection .
Are the measurements within the specified values?
YES - Go to Step 6
NO - Go to Step 7
6
Perform the air suspension air leak diagnosis. Refer to Air Suspension Air Leak Diagnosis .
Did you find and correct the condition?
YES - Go to Step 10
NO - System OK
7
Recalibrate the air suspension level sensors. Refer to Rear Air Spring Level Sensor Calibration .
Did you find and correct the condition?
YES - Go to Step 10
Go to Step 8
8
Replace the air spring sensor. Refer to Air Spring Leveling Sensor Replacement .
Did you find and correct the condition?
YES - Go to Step 10
NO - Go to Step 9
9
Subtract the Service Preferred Trim Height specification from the value obtained in step 12 of the Air Spring Leveling Sensor replacement procedure.
Add the value to the Service Preferred Trim Height specification. This is the adjusted D-Height measurement.
Repeat the Air Spring Calibration procedure using this value in place of the D-Height specification in step 7 of the Air Spring Calibration procedure.
YES - Did you find and correct the condition?
NO - Go to Step 10
--
10
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
--

Jun 22, 2017 | GMC Cars & Trucks

1 Answer

Air suspension hummer h2


Your vehicle is equip with air bag system. You probably experiencing an air lost due to air bags leaks or your leveling valve is exhausting air at the exhaust port. Here is what you do. Spray soap with water on spray bottle and spray around the air suspension area. when you see bubbles coming out that's the leaks. fix it. Good luck.

Nov 16, 2013 | Cars & Trucks

1 Answer

Ok susp light came on


A malfunction with the air suspension system has been detected
Start with the basics and check the switch in the right front passenger footwell , by the kick panel and see if the air suspension service switch has been turned off , or perhaps its fuse # 12 ( 15 amp ) for the air suspension switch , or fuse # 15 - 5 amp for the air suspension module ( but unless you have noticed other things not working it's probably not that fuse ) In the power distribution box in the engine compartment
( Ford states to disconnect your battery before servicing anything in the PD BOX ) fuse # 109 is a 50 amp maxi-fuse for the air suspension compressor , or it could be a sensor or the compressor itself etc.

Nov 14, 2011 | 1999 Ford Expedition

1 Answer

The dashborad says suspension fault


Problems with the air suspension seem to be less frequent with the Sport than in previous Range Rover models, but they still do occur. One owner reports "Whenever my RRS is lowered to "access" level a suspension system fault message apprears.". Another reports " Had the RRS back less than 2 hours and another "suspension fault." Also kept receiving messages that the vehicle is raising slowly and vehicle will raise when system cools. Couldn't even drive because it wouldn't raise out of access mode. Anyway, back to the dealer. Picked the RRS up again today-dealer said the EAS compressor was faulty and replaced it. So far everything is ok." Overall, most of the problems seem to be related to bad suspension height sensors or bad compressors. Angus Wade of the Czech Republic had his suspension light come on when in Germany; it started yellow and then red, then disappeared when he stopped and restarted the engine -- and has not happened since. His dealer said they have seen this a bit.

Weak Compressor: An official Technical Service Bulletin (TSB) LS-204-004 addresses "ELECTRONIC AIR SUSPENSION (EAS) WARNING MESSAGE AND LAMP ILLUMINATION". This deals with the warning message "Suspension Fault - Normal Height Only" message appearing with the Air Suspension Warning Lamp on. Computer diagnosis shows pressure increasing too slowly or unable to pressurize, with no air leaks. The usual problem is the compressor exhaust valve sticking, causing an internal air leak when the compressor is active. The bulletin recommends renewing the air compressor (RQG500090 is the latest specification air compressor with a stronger exhaust valve return spring)and installing and updating the air suspension control module software using WDS disc 13 or later.

Suspension Fault Message (random): One owner reported getting random suspension fault messages on his brand new RR Sport purchased in June 2006, well after the fix was in for the weak compressor. His suspension Fault message and Suspension Warning Light (Amber) came on after 5 days of ownership. He stopped and restarted the car, which caused the light and message to disappear, but they came on again after 5 minutes. Later the same day, the warnings disappeared again.

I have heard that on 2006 models, EAS fault messages can be caused by an internal leak in the Air Suspension compressor exhaust valve. The fix is said to be replacing the compressor updating the software.

Hope helps.

Sep 09, 2011 | Land Rover LR3 Cars & Trucks

1 Answer

The dashboard says suspension fault


Problems with the air suspension seem to be less frequent with the Sport than in previous Range Rover models, but they still do occur. One owner reports "Whenever my RRS is lowered to "access" level a suspension system fault message apprears.". Another reports " Had the RRS back less than 2 hours and another "suspension fault." Also kept receiving messages that the vehicle is raising slowly and vehicle will raise when system cools. Couldn't even drive because it wouldn't raise out of access mode. Anyway, back to the dealer. Picked the RRS up again today-dealer said the EAS compressor was faulty and replaced it. So far everything is ok." Overall, most of the problems seem to be related to bad suspension height sensors or bad compressors. Angus Wade of the Czech Republic had his suspension light come on when in Germany; it started yellow and then red, then disappeared when he stopped and restarted the engine -- and has not happened since. His dealer said they have seen this a bit.

Weak Compressor: An official Technical Service Bulletin (TSB) LS-204-004 addresses "ELECTRONIC AIR SUSPENSION (EAS) WARNING MESSAGE AND LAMP ILLUMINATION". This deals with the warning message "Suspension Fault - Normal Height Only" message appearing with the Air Suspension Warning Lamp on. Computer diagnosis shows pressure increasing too slowly or unable to pressurize, with no air leaks. The usual problem is the compressor exhaust valve sticking, causing an internal air leak when the compressor is active. The bulletin recommends renewing the air compressor (RQG500090 is the latest specification air compressor with a stronger exhaust valve return spring)and installing and updating the air suspension control module software using WDS disc 13 or later.

Suspension Fault Message (random): One owner reported getting random suspension fault messages on his brand new RR Sport purchased in June 2006, well after the fix was in for the weak compressor. His suspension Fault message and Suspension Warning Light (Amber) came on after 5 days of ownership. He stopped and restarted the car, which caused the light and message to disappear, but they came on again after 5 minutes. Later the same day, the warnings disappeared again.

I have heard that on 2006 models, EAS fault messages can be caused by an internal leak in the Air Suspension compressor exhaust valve. The fix is said to be replacing the compressor updating the software.

Hope helps.

Sep 09, 2011 | 2006 Land Rover LR3

3 Answers

HI ..I recently purchased a 98 Navigator and the previous owner had the rear air bags removed and now there is a 'check suspension " light on dash..can it be deleted ?? thanks Andy


I would re-install them myself, I liek them better, but you can try to find the air suspension control module. It is usually mounted on the AC/Heater box and it will have a black connector and a gray connector. Unplugging the black connector will turn off the “check air suspension light” but it will also disable your power steering tension (variable assist steering) control on the left side of the steering column. So after you unplug the black connector you need to remove the dark green/light green wire pin from the connector and then reconnect that black connector to the module. That will disable only the check air suspension light. Or to make quick work of it you can just identify that black connector to the module and cut the green wire. And be sure to isolate that wire because the “check air suspension light” will come on if it touches ground.

Aug 31, 2010 | 1998 Lincoln Navigator

1 Answer

Check suspension?


Check suspension
Illuminates momentarily when the
ignition is turned to the ON
position and the engine is OFF.
The light also illuminates when the
air suspension system requires
servicing.

Nov 18, 2009 | 1998 Ford Expedition

1 Answer

95 lLinclon mark 8 service light said..Check Air Ride


check that air pump is operational and all relays and fuses are okay if so check for leaks in vacuum hoses to air ride suspension

Oct 20, 2009 | 1995 Lincoln Mark VIII

1 Answer

Owners manual ?


"looking 4 da relay"
there is a solid state relay for the air suspension system , it is next to or near the air suspension pump located at right front of engine compartment ( relay has a 4 wire connector , colors grey/red , light blue/pink , light green/red , and a dark blue/yellow , also behide the right interior kick panel is a fuse area , 3 fuses are involved with this circuit , fuse #111 - a 50 amp fuse , fuse #27 a 5 amp fuse , and fuse #20 a 30 amp fuse , and don't forget the air suspension service on/off switch . if your not 100% happy with my answer , tell me what i can do to help .

free owners manual ?, best i can say is try ebay , here is several available on ebay.

ebay 03 lincoln navagator owners manuals

J5


Jan 22, 2009 | 2003 Lincoln Navigator

1 Answer

Service air suspension


Your airbags probably have an air leak or are just starting to crack. Go to you tube and type in Suncore hummer suspension air bag replacement. They have a whole how to install that also show your suspension and how it fails

Jan 12, 2009 | 2003 Hummer H2

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