Hawk HA-FM10, Manual

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20
Finding The 12v switched
Ignition wire
The ignition wire is powered when the key is in the run or start position. This is because
the ignition wire powers the ignition system (spark plugs, coil) as well as the fuel delivery
(fuel pump, fuel injection computer). Accessory wires lose power when the key is in the
start position to make current available to the starter motor.
How to find (+) 12v ignition 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 ignition wire. The steering column harness or
ignition switch harness is an excellent place to find this wire.
4. Turn the ignition key switch to the run position. if your meter reads (+)12v, go to the
next step. If it doesn’t, probe another wire.
5. Now turn the key to the start position. the meter display should stay steady, not
dropping more than a few tenths of a volt. If it drops close to or all the way to zero, go
back to Step 3. If it stays steady at (+) 12v, you have found an ignition wire.
How to find starter wires 12 volts
ONLY in crank position
Testing a starter wire is very simple. Start by locating the suspected wire in the vehicle.
Next, take your meter’s black lead and connect it to ground. Next, connect the red lead to
the wire you believe is the starter wire. Crank the vehicle. The meter should ONLY show
12v when the key is in the crank position. There should be 0 volts in all other positions.
Starter wires are used in Remote Car Starter Installations.
Using the above testing guidelines, you can test any wire. When testing an accessory like a
horn or interior light in the vehicle, simply activate the accessory with your meter leads in
place to get the meter reading. The meter should only read power and ground on acces-
sory items when they are activated.
The ignition wire is powered when the key is in the run or start position. This is because the
ignition wire powers the ignition system (spark plugs, coil) as well as the fuel delivery
(fuel pump, fuel injection computer). Accessory wires lose power when the key is in the start
position to make current available to the starter motor.
How to find (+) 12v ignition 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 ignition wire. The steering column harness or
ignition switch harness is an excellent place to find this wire.
4. Turn the ignition key switch to the run position. if your meter reads (+)12v, go to the
next step. If it doesn’t, probe another wire.
5. Now turn the key to the start position. the meter display should stay steady, not
dropping more than a few tenths of a volt. If it drops close to or all the way to zero, go
back to Step 3. If it stays steady at (+) 12v, you have found an ignition wire.
Testing a starter wire is very simple. Start by locating the suspected wire in the vehicle.
Next, take your meter’s black lead and connect it to ground. Next, connect the red lead to
the wire you believe is the starter wire. Crank the vehicle. The meter should ONLY show
12v when the key is in the crank position. There should be 0 volts in all other positions.
Starter wires are used in Remote Car Starter Installations.
Using the above testing guidelines, you can test any wire. When testing an accessory like a
horn or interior light in the vehicle, simply activate the accessory with your meter leads in
place to get the meter reading. The meter should only read power and ground on accessory
items when they are activated.
Finding the 12v switched
ignition wire
How to find starter wires 12 volts
ONLY in crank position
6
The ignition wire is powered when the key is in the run or start position. This is because the
ignition wire powers the ignition system (spark plugs, coil) as well as the fuel delivery
(fuel pump, fuel injection computer). Accessory wires lose power when the key is in the start
position to make current available to the starter motor.
How to find (+) 12v ignition 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 ignition wire. The steering column harness or
ignition switch harness is an excellent place to find this wire.
4. Turn the ignition key switch to the run position. if your meter reads (+)12v, go to the
next step. If it doesn’t, probe another wire.
5. Now turn the key to the start position. the meter display should stay steady, not
dropping more than a few tenths of a volt. If it drops close to or all the way to zero, go
back to Step 3. If it stays steady at (+) 12v, you have found an ignition wire.
Testing a starter wire is very simple. Start by locating the suspected wire in the vehicle.
Next, take your meter’s black lead and connect it to ground. Next, connect the red lead to
the wire you believe is the starter wire. Crank the vehicle. The meter should ONLY show
12v when the key is in the crank position. There should be 0 volts in all other positions.
Starter wires are used in Remote Car Starter Installations.
Using the above testing guidelines, you can test any wire. When testing an accessory like a
horn or interior light in the vehicle, simply activate the accessory with your meter leads in
place to get the meter reading. The meter should only read power and ground on accessory
items when they are activated.
Finding the 12v switched
ignition wire
How to find starter wires 12 volts
ONLY in crank position
6