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Aldl port not flashing trouble codes.
I have a 94 c1500 and I have checked engine trouble codes by jumping the A and B pins on ALDL port before. Now the check engine light will come on when Ign is on, but when I try to enter diagnostic mode the check engine light does not flash code 12 as usual it just stays on.- TPsbc
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- Replies: 7
- Forum: Engine Performance + Maintenance
