Question about 1999 GMC Yukon
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Posted on Mar 18, 2018
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Posted on Jan 02, 2017
most of the times the signal wire is the black one,
but is definly not the red or the red with stripe,
so is eithr the white or the black.
Posted on May 28, 2008
Hello, here is a picture of the connector and wiring.
MANIFOLD ABSOLUTE PRESSURE SENSOR (GAS) - BLACK 3 WAY CAV CIRCUIT FUNCTION 1 K1 18VT/BR (3.3L/3.8L) MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL 1 K1 18VT/BR (2.4L) MAP SIGNAL 2 K900 18DB/DG SENSOR GROUND 3 F855 18PK/YL 5 VOLT SUPPLY
Pink/Yellow is #3, Blue is #2, and Purple is #1. Your colors may appear slightly different
Posted on Oct 23, 2008
glad you posted what colors you do have , cause 2 resources didn't match ,actually 3 , i did find a match to your colors was a 97 year model premium radio, so we have a match .....
black/ light green = ground
dark green = left front spkr +
purple = right front spkr +
blue/white = right rear spkr -
brown/blue = left rear spkr -
brown/yellow = left rear spkr +
blue/orange = right rear spkr +
black/yellow = park lamps
brown/red = left front spkr -
orange = dimmer signal
pink = fused battery +
green/red = radio choke relay
red/white = fused ignition
blue/red = right front spkr -
djmac62 is also an excellent answer
Posted on Jan 10, 2009
SOURCE: Install aftermarket tachometer
I'll take a stab at this, there's better than a 50-50 chance, and you can do no damage if the first try is wrong. Red is +12 volts and Black is chassis ground. that's a given. I would try Blue to coil pack "Tach" terminal, and Green for the dashlight. If I am right about the Blue and Green, a 9-volt battery from Green to Black will light the light if it's not burned out. If the Green doesn't light it, try the Blue, but my bets on the Green. If the Blue doesn't light it either, the bulb is toast.
Posted on May 08, 2009
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