Abs asr issues

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Dec 18, 2022 | 08:28 PM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

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Abs asr issues

1993 c4, 100,000 miles on it. Random abs pulsating when pulling up to a stop light in gear while stopped. I can feel it mostly in the gas pedal, almost to the point where I can’t even push the pedal at all(a lot of resistance) and the car starts idling rough. If I put it into neutral the symptoms stop. Need help

Dec 18, 2022 | 09:14 PM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

Likes: 1

Just read the codes and I have a H66 in the abs module

Dec 19, 2022 | 05:07 PM

jph46

Racer

Joined: Sep 2011

Posts: 462

Likes: 30

From: Riverside California

DTC 66 is “Adjuster Assembly Control Malfunction “ make sure all the cables are not binding, I can copy the info from the Service Manual if you don't have one.

Dec 20, 2022 | 05:53 PM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

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That would be great if you could. I do not have them

Dec 20, 2022 | 07:50 PM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

Likes: 1

I will check that out. Thanks for your input.

Dec 21, 2022 | 09:34 AM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

Likes: 1

Third brake light working as it should!

Dec 21, 2022 | 09:31 PM

jph46

Racer

Joined: Sep 2011

Posts: 462

Likes: 30

From: Riverside California

Here’s theDTC 66 check list. There is also a great utube video at Ozzstar Corvette, on adjusting the asr motor and cables.

Dec 21, 2022 | 09:55 PM

Papichulo

Thread Starter

Heel & Toe

Joined: Nov 2022

Posts: 24

Likes: 1

Thanks for this info, I will do this when I get back to work on Tuesday. I did see that video that ozz did in asr adjustment. Is there a possibility that the asr cables being adjusted can correct my issue?

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Dec 21, 2022 | 11:54 PM

jph46

Racer

Joined: Sep 2011

Posts: 462

Likes: 30

From: Riverside California

Not sure, but it might tell you if anything is binding. Had a DTC 65 code on mine, did try the reset, didn’t help. My issue was a bad EBTCM. Good luck, hope you get to the bottom of this.