C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

clearing the codes ABS

Thread Tools
 
Search this Thread
 
Old Dec 31, 2003 | 05:44 PM
  #1  
kohlbear's Avatar
kohlbear
Thread Starter
Instructor
 
Joined: Dec 2003
Posts: 137
Likes: 0
From: Crestview Hills Kentucky
Default clearing the codes ABS

Took the 87 to a shop to check ABS. He said he could hear the start up sound in the box behind the drivers seat. He cleared the codes by crossing the main negative and positive for a second and drove the car. Since he cleared the codes and the light still remained on he figured it was a wheel sensor. He will do the Ohm test on each sensor.

Sounds funny to me shorting the electrical system to clear the codes. Couldn't that ruin my main computer?
Reply
Old Dec 31, 2003 | 08:27 PM
  #2  
jackdaroofer's Avatar
jackdaroofer
Race Director
Supporting Lifetime Gold
15 Year Member
 
Joined: Dec 1999
Posts: 11,182
Likes: 2
From: Almost all Skyline Cruises Vettes at Waterside 1-5
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In V Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Default Re: clearing the codes ABS (kohlbear)

:cheers: Did he cross the wires when they were hot? Did it produce sparks?

That isn't the way to clear codes. If he simply removed both leads from the battery and touched them together, you have entered the world of OZ! Simply disconnecting one terminal from the battery and waiting a few minutes, clears the codes

:seeya
Reply
Old Dec 31, 2003 | 10:22 PM
  #3  
Tourney3p0's Avatar
Tourney3p0
Pro
 
Joined: Aug 2002
Posts: 715
Likes: 0
From: Warner Robins GA
Default Re: clearing the codes ABS (kohlbear)

Sounds funny to me shorting the electrical system to clear the codes. Couldn't that ruin my main computer?
It's my understanding that on that year, no codes are ever stored so there is nothing to clear. All tests are done at or near startup. If the problem is fixed, the light doesn't come on.

If I'm wrong, I'd appreciate someone correcting me.

Either way, I wouldn't let that guy touch your ABS system again.
Reply
Old Jan 1, 2004 | 12:54 PM
  #4  
dlmeyers's Avatar
dlmeyers
Burning Brakes
10 Year Member
 
Joined: Feb 2000
Posts: 824
Likes: 2
From: Camden SC
Default Re: clearing the codes ABS (Tourney3p0)

Correct.

Pre MY (Model Year)90 cars did not store codes. They monitored system performance and did not store codes.

At this point, I would get a service manual and follow the trouble shooting procedure.

dlmeyers 90 coupe zf6 3 speed shocks
Reply
Old Jan 1, 2004 | 01:00 PM
  #5  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default Re: clearing the codes ABS (dlmeyers)

there are some new cars that reset codes in that manner.

I don't think that doing it with the battery disconnected will do any harm... there is nothing happening, except some capacitors discharging...
Reply
Old Jan 3, 2004 | 01:04 PM
  #6  
kohlbear's Avatar
kohlbear
Thread Starter
Instructor
 
Joined: Dec 2003
Posts: 137
Likes: 0
From: Crestview Hills Kentucky
Default Re: clearing the codes ABS (jackdaroofer)

Well I removed every wheel sensor. cleaned it and checked for damage. They all tested around 1000 OHM value. I checked the Main fuse box and everything is ok on both brake related fuses. I checked the electrical connections on the hole behind the drivers seat. I used a test light on the abs module relay. The only problem there is the orange wire # 87 has no voltage, while the other two, except the ground are ok. I can hear it click when I turn on the key, but it turns on the abs light when I hit about 7 miles per hour. I hate to go to the dealer after all this work. Any ideas?
Reply
Old Jan 3, 2004 | 06:14 PM
  #7  
CoolVette86's Avatar
CoolVette86
Race Director
20 Year Member
 
Joined: Sep 2000
Posts: 12,182
Likes: 1
From: Partying with the Cowboys cheerleaders in Mt. Olive, New Jersey
Default Re: clearing the codes ABS (Tourney3p0)

Sounds funny to me shorting the electrical system to clear the codes. Couldn't that ruin my main computer?

It's my understanding that on that year, no codes are ever stored so there is nothing to clear. All tests are done at or near startup. If the problem is fixed, the light doesn't come on.

If I'm wrong, I'd appreciate someone correcting me.

Either way, I wouldn't let that guy touch your ABS system again.
If any **** mechanic did that to my car, I'd pop him! :yesnod: Crossing wires...sheeesh. By the way, just today I replaced both my rear sensors at a cost of $86 each. This sure cured my intermitten ABS problems. Not bad for an afternoon's work. 1. Get the parts online. 2. Jack up the rear. 3. Take both rims off. 4. Unbolt/detach the sensors. 5. Coat the new sensor with anti-seize ONLY at the cylinder part NOT the sensor tip. 6. Bolt in/attach the new sensors. 7. Blah, blah, put everything back together. 8. You're done, have a beer. :thumbs:
Reply

Get notified of new replies

To clearing the codes ABS





All times are GMT -4. The time now is 05:35 AM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE