Works on the Bench but Not in the Vehicle? Troubleshooter
Same device, different result. The difference is the wiring.
On the bench it had short, direct wires. In the vehicle it doesn't. Work through one question at a time. You can go back or start over whenever you like.
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Safety: this troubleshooter is general information for low-voltage DC learning circuits. 240V AC mains can kill: in Australia, work on mains wiring must be done by a licensed electrician. Disconnect power before you touch wiring.
