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CHEVROLET ASTRO
MODEL YEAR(S
ASTRO 1999
KEY T-HARNESS IMMOBILIZER
N/A N/A GM'S PASSLOCK 2 ANTI-THEFT SYSTEM, See NOTE #1
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED and RED/WHITE @ IGNITION SWITCH HARNESS
STARTER YELLOW (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS
IGNITION 2 WHITE (+) @ IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 BROWN (+) @ IGNITION SWITCH HARNESS
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BROWN (+) @ HEADLIGHT SWITCH
POWER LOCK LIGHT BLUE (+) (TYPE A) IN DRIVERS DOOR HARNESS
POWER UNLOCK WHITE (+) (TYPE A) IN DRIVERS DOOR HARNESS
LOCK MOTOR WIRE N/A
DOOR TRIGGER PURPLE (-) @ HEADLIGHT SWITCH
DOMELIGHT SUPERVISION PURPLE (-), (Requires #775 relay) @ HEADLIGHT SWITCH
TRUNK RELEASE LIGHT GREEN (-) @ RELEASE RELAY, See NOTE #2
SLIDING POWER DOOR N/A
HORN BLACK (-) @ STEERING COLUMN HARNESS
TACH WHITE (AC) @ ECM, See NOTE #3
WAIT TO START LIGHT N/A
BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM LIGHT GREEN (-) IN DRIVERS KICK PANEL
ANTI-THEFT PASSLOCK 2 ANTI-THEFT, YELLOW (+) and ORG/BLK (-) @ IGNITION SWITCH
NOTES
NOTE #1: Equipped with GM's PASSLOCK 2 ANTI-THEFT SYSTEM, Requires Part # 791

BYPASS MODULE.



to order go to the SECURITY BYPASS MODULE Page on this website







NOTE #2: The Release RELAY is located in the RIGHT REAR QUARTER PANEL.







NOTE #3: The ECM (Electronic Control Module) is located under the hood, behind the BATTERY.

The WHITE tach wire is found in a BLACK plug labeled "WHITE".
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