Question about 1987 Chevrolet Cavalier 4 Door

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How to reset the trouble (ecu) codes from a 87 chevy cavalier without scanner? read out was easy, but how to get rid of them?

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Try to disconnect the battery for 30 sec. and reconnect. Will have to reset radio clock.

Posted on Aug 27, 2010


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How to reset ecu on 2001 Chevy Cavalier

reset might be as easy as disconnecting the battery...what is the issue you are trying to solve?

Mar 04, 2015 | Cars & Trucks

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What is failt code 16988

If this is code 16988/P0604, it refers to Internal Contr.Module Random Access Memory (RAM) Error. This seems to relate to the ECU and may reset if the car is left without power for a while (disconnect the battery). Or it was triggered after the ECU lost power.

If it doesn't disappear, the fault codes should be reset with a VAG-COM tester. If it persists, it needs further diagnostics at the dealer.

Here's a table of VAG fault codes:
Audi Online Technical Library Diagnostic Trouble Codes DTC Tables
Here's another useful resource at ross-tech:
Main Page
Just type your error code into the search box and read on :)

Aug 03, 2014 | Skoda Octavia Cars & Trucks

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Can i get trouble code without scanner on 2000 chevy malibu 3.1L

Go to Autozone ( or similar). They will read your code(s) for free and print them out for you too.

Apr 21, 2014 | 2000 Chevrolet Malibu

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Check ecu codes

With an OBDII code reader, a scan tool, a repair shop, the dealer, or your local parts store can also help you with this.

Sep 08, 2013 | 1999 Chevrolet Cavalier

1 Answer

How do i clear a codes in a loop on my ECU

If these fault codes have become embedded even after an ecu reflash and software upgrade, why does it worry you?
Unless the mil light stays on all the time.
Surely these codes will only be read when a diagnostic test is carried out?

Apr 24, 2017 | 1996 Lincoln Continental

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98 chevy cavalier z24- running real rough just replaced plugs and boots

if you replaced the plugs in wires in it is still doing it id looking in to changeing the dis cap in rotor bug in the dist or you mite have bad gas in it

Feb 26, 2010 | 1998 Chevrolet Cavalier

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My 2003 chevy cavalier check engine light keeps

go to autoparts store and use their scanner to scan the computer and get the code. you may have to wait until you can catch it back on again. You can try resetting the computer by disconnecting battery for 30 minutes and see if that works first

Oct 08, 2009 | 2003 Chevrolet Cavalier

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I have 1999 chevy cavalier. My ABS light is oh.

Drive it. Then have the rear abs brake sensors checked because they seem to be the first to go in a system like that. Someone with a scan tool should be able to read out any trouble codes in the abs system

Jul 08, 2009 | 1998 Chevrolet Cavalier

2 Answers

What does the low traffic light mean in a 1998 chevy cavalier?

If your ABS light is on as well, have a shop scan it (it requires a special scanner). If it's just your Trac light without ABS, it is most likely a sensor under the hood at fault. If you are getting a check engine light as well, get the codes read!
This happened to me without an ABS light and it was the upstream O2 sensor. The reason it throws the Trac light is because if any components that the traction control uses (ignition, fuel) are affected by a bad sensor, the PCM shuts down traction.
In fact, when I replaced the O2 sensor, a handful of other little issues resolved as well.
If you do have an ABS light on, it could very well be a wheel speed sensor.

Apr 13, 2009 | 1998 Chevrolet Cavalier

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