RightClick AL Plus Series, Car Alarm System

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Finding The Starter Wire - START
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
starting when the vehicle is cold.
How to find the starter wire with your multimeter:
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 test it. Hiding your
starter kill relay and connections is always recommended.
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.
Finding The Accessory Wire - ACC
An accessory wire will show +12V when the key is in the accessory ACC and run ON positions. It will not
show +12V during the cranking cycle. There will often be more than one accessory wire in the ignition har-
ness. The correct accessory wire will power the vehicle’s climate control system (heating/air conditioning
system). Some vehicles may have separate wires for the blower motor and the air conditioning compressor.
How to find the 12v accessory wire with your multimeter:
1. Set meter to DC voltage.
2. Attach the (-) probe of the meter to chassis ground.
3. Probe the wire you suspect of being the accessory wire with the (+) probe. The steering column har-
ness or ignition harness is an excellent place to find this wire.
4. Turn the ignition key to the accessory and then the run position. If your meter reads 12V on each, go
to the next step.
5. Turn the key to the start position. The meter should drop to zero. If it does, this is the correct wire.
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