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Mounting recommendations
Main Page > EOL Products > FMB640 > FMB640 Manual > Mounting recommendations
Connecting Wires
• Wires should be connected while module is not plugged in.
• Wires should be fastened to the other wires or non-moving parts. Try to avoid heat emitting and
moving objects near the wires.
• The connections should not be seen very clearly. If factory isolation was removed while connecting
wires, it should be applied again.
• If the wires are placed in the exterior or in places where they can be damaged or exposed to heat,
humidity, dirt, etc., additional isolation should be applied.
• Wires cannot be connected to the board computers or control units.
Connecting Power Source
• Be sure that after the car computer falls asleep, power is still available on chosen wire. Depending
on car, this may happen in 5 to 30 minutes period.
• When module is connected, be sure to measure voltage again if it did not decrease.
• It is recommended to connect to the main power cable in the fuse box.
• Use 3A, 125V external fuse.
Connecting Ignition Wire
• Be sure to check if it is a real ignition wire – power does not disappear while starting the engine.
• Check if this is not an ACC wire (when key is in the first position, most electronics of the vehicle
are available).
• Check if power is still available when you turn off any of vehicles devices.
• Ignition is connected to the ignition relay output. As alternative, any other relay, which has power
output, when ignition is on, may be chosen.
Connecting Ground Wire
• Ground wire is connected to the vehicle frame or metal parts that are fixed to the frame.
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