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  1. S10 / S15
    I have a 1988 s10 longbed. Never had the ses light come on before. Just driving along one day I get the ses light. (No change in power, drivability or throttle response) use a paper clip and jump the A and B terminals to check the codes. 24 and 34. I’ve figured 24 is the speed sensor, but what’s...
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