Service AWD Light - Transmission Problems


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Service AWD Light

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Vertigo
New User

Jan 11, 2008, 10:25 AM

Post #1 of 5 (2254 views)

Service AWD Light	Sign In

Can someone help please? I have a 2000 Chevy Astro that is showing the "Service AWD" light. Has anyone else had this problem and how did you go about repairing. I can usually repair my own stuff, but I need to know what I am looking for.

Double J
Veteran / Moderator
Double J profile image

Jan 11, 2008, 12:23 PM

Post #2 of 5 (2250 views)

Re: Service AWD Light	Sign In

i would start by having the computer scanned for trouble codes...you will need to take to a shop that can scan for these type codes.
usually the autozone people can only scan driveability codes with their scanners. i don't believe they can get these codes.you can ask them.
once you get the correct trouble code ,then you can try to diagnose from there with a diagnostic flow chart.

post back results,i.e. codes and maybe someone here can help with that.

Jim

(This post was edited by JIM N on Jan 11, 2008, 12:24 PM)

Vertigo
New User

Jan 11, 2008, 12:41 PM

Post #3 of 5 (2247 views)

Re: Service AWD Light	Sign In

Jim, thanks for the advice. What would be making a clicking noise under the dash or just under the hood close to the Fire Wall? It sounds like a Solenoid turn on and off, at least 4 or 5 times before it stops. Where would I find the "Transfer Case Module" for my van and could these be the devil that is making the noise?

(This post was edited by Vertigo on Jan 11, 2008, 12:44 PM)

Double J
Veteran / Moderator
Double J profile image

Jan 11, 2008, 12:46 PM

Post #4 of 5 (2244 views)

Re: Service AWD Light	Sign In

Only thing i can think of is the abs(antilock brake ) unit will click when ignition is first turned on -it goes thru a self test.is that when you hear it??

Vertigo
New User

Jan 11, 2008, 12:48 PM

Post #5 of 5 (2242 views)

Re: Service AWD Light	Sign In

Good call, that's probably what it is? Thanks!

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