555
Probationary Member
- 5
- 0
- May 16, 2005
-
forest lake,
Minnesota
Just curious if you can read check engine codes with out putting the car on the scanner? 

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555 said:Just curious if you can read check engine codes with out putting the car on the scanner?

....Take an analog volt meter, the kind with the needle, touch terminals 1 and 12 and watch the sweeps, for example, code 31 which u said u pulled would show three long sweeps, and then a quick single sweep, the next code will do the same thing after the last quick single sweep. If you dont quite understand it, go pull the code, then re-read this. Mind polarity also.