BOA 165B Installation Manual page 29

note! In the following procedure do NOT use the LED
tester. Use of this tester can cause grounding of sensitive
electrical components causing damage, including damage
to the power train control module. Use a digital multi-
meter to test for this wire.
Identify the suspect wire according to the web information.
Place the black lead of the multi-meter on the negative battery
post and secure it. Put the multi-meter in the AC position and
connect the probe to the suspect wire with the red lead of the
multi-meter. Then start the vehicle with the key. With the
engine at idle the multi-meter should read between .05 volts to
1.5 volts.
Have a second person press the gas pedal to increase the RPMs
and watch the meter display. When the RPMs increase the
voltage should read between 1.5 volts and 2.9 volts. Once the
correct tachometer wire has been identified, turn the vehicle off.
Run the VIOLET/WHITE (H1/2) wire from the main
connector through the firewall into the engine compartment
along side the hood pin wire. Use the same procedure as with the
hood pin wire and pull the wire through the grommet taking
extra care to keep it away from any moving parts or anything
that will generate extreme heat. Once the wire is run into the
engine compartment, strip a small portion of insulation off the
tachometer wire and solder it to the VIOLET/WHITE wire and
wrap the connection with electrical tape. Pull on the wire to
ensure a good connection.
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© 2005 Directed Electronics, Inc.