HELP! ASR Service light problem
Thread Starter
Instructor
Joined: Jul 2003
Posts: 100
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From: Belton Tx
HELP! ASR Service light problem
Hey guys and gals, I need your help again...I was out of the country for aqbout 3 1/2 weeks, my 93 c-4 fired right up when I returned home yesterday, but when I tried to start it to return home the moter just turned over with no fire or even an almost start. I noticed the "service ASR" light stayed on each time I tried to start it. If I try the ignition switch on and off until the light did not come on the car would start...My manuel says to get the ASR checkied by the dealer but does not say what the problem might be. Is it a sensor? a chip? can it be bypassed? can I fix or is it a "dealer" only fix? When the car does start, it runs great...please help 
Elite Torch Red Member
Joined: Sep 1999
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
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St. Jude Donor '03-'04-'05-'06-'07
I'm not an expert on this, but the sevice ASR is somehow connected with the ignition module and/or tach filter.
When I did my LTCC conversion, I had no tach or ASR. Cut the tach filter off and the tach came back and so did the ASR.
I still get the service ASR light every now and then, but I haven't had time to chase down what the problem is.
When I did my LTCC conversion, I had no tach or ASR. Cut the tach filter off and the tach came back and so did the ASR.
I still get the service ASR light every now and then, but I haven't had time to chase down what the problem is.
Race Director
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
I have the same problem as you but I just learn to live with it. It only happens to me if engine has been running for some time and is hot. Sometimes it happens when car sits in hot sun for some time.
If I stick key in and service ASR light comes on, I pull key out and try again. Normally 2 or three times before the light goes out and it starts and runs fine. Its a 10 to 15 second inconvience but I can live with it.
If I stick key in and service ASR light comes on, I pull key out and try again. Normally 2 or three times before the light goes out and it starts and runs fine. Its a 10 to 15 second inconvience but I can live with it.
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Instructor
Joined: May 2005
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From: Lady Lake FL
I'm having similar problems with my 93 and its the ECM that's bad. I trying to replace it right now. Mine will at least run with the light on though. Pull your codes and see if you get a C41 or an H41. As CCM codes these mean a loss of serial communication with the ECM for some reason.
KC
KC
