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Starter wire
The starter wire provides 12V directly to the starter or to a relay controlling the
starter. In some vehicles, it is necessary to power a cold start circuit. A cold start
circuit will test exactly like a starter circuit, but it does not control the starter.
Instead, the cold start circuit is used to prime the fuel injection system for start-
ing when the vehicle is cold.
How to find the starter wire with your multi meter:
1.
Set to DCV or DC voltage (12V or 20V is fine).
2.
Attach the (-) probe of the meter to chassis ground.
3.
Probe the wire you suspect of being the starter wire. The steering column is
an excellent place to find this wire. Remember you do not need to interrupt
the starter at the same point you are testing.
4.
Turn the ignition key switch to the start position. Make sure the car is not
in gear! If your meter reads (+)12V, go to the next step. If it doesn't, probe
another wire.
5.
Cut the wire you suspect of being the starter wire.
6.
Attempt to start the car. If the starter engages, reconnect it and go back to
Step 3. If the starter does not turn over, you have the right wire.
© 2008 Directed Electronics—all rights reserved
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