ASR Service light
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2nd Gear
Joined: Aug 2016
Posts: 2
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ASR Service light
I have a 92 Corvette and when I start it up the Srvice ASR light comes on, as the car warms up it will surge a few times and then smooth out but the Service Engine Soon light comes on. Not sure if these are related or not but they seemed to have started happening about the same time. I have researched the issue and most claimed the wires going to the rear speed sensors may have had the sheilding cut and shorting out, checked this and no issue there. I ran the codes and got 1-C12, 4- H74 & H22, 9-H64. I cleared all codes and checked again and C12 and H64 will not clear. Any help would be greatly appreciated.
3rd Gear
Joined: Mar 2017
Posts: 3
Likes: 0
From: Macomb MI
I have a 92 Corvette and when I start it up the Srvice ASR light comes on, as the car warms up it will surge a few times and then smooth out but the Service Engine Soon light comes on. Not sure if these are related or not but they seemed to have started happening about the same time. I have researched the issue and most claimed the wires going to the rear speed sensors may have had the sheilding cut and shorting out, checked this and no issue there. I ran the codes and got 1-C12, 4- H74 & H22, 9-H64. I cleared all codes and checked again and C12 and H64 will not clear. Any help would be greatly appreciated.
Last edited by Miguel93; May 22, 2018 at 10:12 PM.
Melting Slicks
Joined: Jan 2014
Posts: 2,478
Likes: 254
From: Downers Grove Illinois
I have an frequent service ASR light too (1993). Drives me bananas! I see sys flash next to the speedo whenever it comes on while driving. This means a code just got set, but the codes that get set are not related to the traction control (ASR) or ABS. If it stays on after the key-on bulb check, the car won't start so sometimes I have to key off and on repeatedly till it clears just to get it to start. Worried it's the CCM or the PCM. As you say, any help would be greatly appreciated!
3rd Gear
Joined: Mar 2017
Posts: 3
Likes: 0
From: Macomb MI
Melting Slicks
Joined: Jan 2014
Posts: 2,478
Likes: 254
From: Downers Grove Illinois
I used SIA Electronics in southern Illinois and it took about a week to get the ECM back. If you send it in to them be sure to remove the MEMCAL first.
http://siaelec.com/
http://siaelec.com/
