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OLDSMOBILE ALERO
MODEL YEAR(S
ALERO 2003-2004
KEY T-HARNESS IMMOBILIZER
N/A N/A PASSLOCK 2, Requires 791 Bypass Module
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) and RED/BLACK (+) IGNITION SWITCH HARNESS
STARTER YELLOW (+) IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) IGNITION SWITCH HARNESS
IGNITION 2 DARK GREEN (+) IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) WHITE (-) @ BCM, GRAY plug, Pin B1, See NOTE *1
PARKING LIGHTS ( + ) BROWN (+) @ BCM, LIGHT GRAY plug, pin B8, See NOTE *1
POWER LOCK WHITE (1-Wire Door Lock System) See NOTE *2 @ BCM, LIGHT GRAY Plug, Pin A2, See NOTE *1 17044_ALERO_ALERO 1 WIRE JBS UNITS.pdf
POWER UNLOCK Same wire, See DIAGRAM See DAIGRAMS 6729_ALERO_ALERO 1 WIRE ALERT SHELBY UNITS.pdf
LOCK MOTOR WIRE GRAY (+) IN DRIVERS KICK PANEL
DOOR TRIGGER See NOTE *3 17044_ALERO_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf
DOMELIGHT SUPERVISION GREEN/BLACK (-) @ BCM, GRAY Plug, Pin B7, See NOTE *1
TRUNK RELEASE BLACK (-) @ BCM, LIGHT GRAY Plug, Pin A7, See NOTE *1
SLIDING POWER DOOR N/A
HORN BLACK (-) @ BCM, GRAY Plug, Pin A4, See NOTE *1
TACH WHITE or PURPLE/WHITE @ PCM, See NOTE *4
WAIT TO START LIGHT N/A
BRAKE LIGHT BLUE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM N/A
ANTI-THEFT YELLOW (+) and BLACK (-) and WHITE (Not Used) GM's PASSLOCK 2 System, wires are at the top of the Ignition Switch Tumbler
NOTES
NOTE *1 the BCM is located between the BLOWER MOTOR and the PASSENGER kick panel.





NOTE *2 tthis vehicle uses a 1-Wire Door Locking System, LOCK requires a Straight (-)Negative and UNLOCK requires a (-)Negative thru a 1500 Ohm Resistor, some units will also require extra Relays, See DIAGRAMS





NOTE *3 this vehicle has a GREEN/BLACK (-) for the DRIVERS DOOR in the GREY Plug, Pin B7 at the BCM and a LIGHT BLUE (-) for ALL OTHER DOORS in the LIGHT GREY Plug, Pin B10 at the BCM. When connecting to an ALARM SYSTEM, use both wires and DIODE ISOLATE.





NOTE *4 the PCM (Powertrain Control Module) is located under the drivers side of dash, left of the steering column.
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EXTRA INFORMATION