Service engine soon light
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Joined: Jul 2009
Posts: 225
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From: T.DoT, Canada
Car: 86 Iroc-Z
Engine: 305 (TPI)
Transmission: 700r4
Axle/Gears: i dunno lolz
Service engine soon light
Hey,
I've had my SES light on for a while now... I finally attempted to diagnose it by running a paperclip from A to B. But I'm not sure how exactly I get the code...
The SES light just flashes when I turn the car to on. It doesn't tell me any code or anything...
I've had my SES light on for a while now... I finally attempted to diagnose it by running a paperclip from A to B. But I'm not sure how exactly I get the code...
The SES light just flashes when I turn the car to on. It doesn't tell me any code or anything...
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Joined: Sep 2008
Posts: 238
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From: Anchorage, Ak
Car: 1988 Pontiac Firebird
Engine: 5.0 TBI
Transmission: W/C T5
Axle/Gears: 3.08 Posi
Re: Service engine soon light
Ok to explain this.... The flashing SES light is the code. 
There will be code 12 ( SES will blink 1 time pause then blink 2 times quickly). Code 12 will blink 3 times before it will change patterns. Example: code 42 will blink 4 times with the same interval between blinks pause then blink 2 times quickly, It will display the code 3 times for each code. I hope this helps.
***Code 12 is a normal code telling you the computer is working correctly***
There will be code 12 ( SES will blink 1 time pause then blink 2 times quickly). Code 12 will blink 3 times before it will change patterns. Example: code 42 will blink 4 times with the same interval between blinks pause then blink 2 times quickly, It will display the code 3 times for each code. I hope this helps. ***Code 12 is a normal code telling you the computer is working correctly***
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