Hi all,
Have posted in the new members section but have been advised this section would be better.
I have a 1998 right hand drive Chevrolet Blazer LT, on the dash I have a warning light saying "service 4 WD" turn the ignition on and the lights flash on for the drive switches, but it is not possible to select any drives and is in 2 wheel drive,
I have taken the module out from the footwell and checked all the connections are good and they are.

I don't have a Chevrolet dealer that can test for fault codes as I live in the U.K. and the American vehicle specialist have quoted me £150 to do a fault diagnoses.

Any advise please. Thanks Tony

 

Any ideas?

 

https://blazerforum.com/forum/tech-a...ill-help-7180/
Check out this thread

 

huge thanks, I didn't come across this when I did my search for 4 wheel drive problems

 

Hi all, so a pain again, I have tried to do the self diagnostic thing with a jumper wire but my plug under the dash is different to the one shown in the above link

above link picture


and what I have



is there any one that can tell me which ones I need to connect to get the error codes at all? (for my service 4wd light)

many thanks Tony

 

Struggling, can't find anything on the web at all?

 

Tony this is what I use to read any fault codes.


V600 VGATE ODBII CAR FAULT CODE DIAGNOSTIC SCANNER TOOL | eBay

 

does it have auto 4wd? if so you need a scantool