Oldsmobile  Alero 1999-2002
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+) See NOTE *1   IGNITION SWITCH HARNESS
 STARTER  YELLOW (+) See NOTE *1  IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  PINK (+) See NOTE *1  IGNITION SWITCH HARNESS
 IGNITION 2  DARK GREEN (+) See NOTE *1  IGNITION SWITCH HARNESS
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  ORANGE (+) See NOTE *1  IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  N/A  
 PARKING LIGHTS ( + )  BROWN (+)  IN DRIVERS KICK PANEL
 POWER LOCK  WHITE (1-Wire Door Lock System) See NOTE *2  IN DRIVERS KICK PANEL, BLACK Plug
 POWER UNLOCK  Same wire, See DIAGRAM  See DIAGRAM
 DOOR TRIGGER  See NOTE *3  IN DRIVERS KICK PANEL and RUNNING BOARD
 DOMELIGHT SUPERVISION  GREEN/BLACK (-), Requires Part #775 Relay  IN DRIVERS KICK PANEL
 TRUNK RELEASE  BLACK/WHITE (+), Requires Part #775 Relay  @ TRUNK RELEASE SWITCH
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ STEERING COLUMN HARNESS
 TACH  PURPLE/WHITE  @ IGNITION COIL
 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
 EXTRA INFORMATION
 NOTE *1 it will be necessary to REMOVE the RADIO, to access the BACK of the IGNITION SWITCH. In some cases you may have to pull the Instrument Cluster to acess the back of the Ignition Switch when plugging in a T-HARNESS. NOTE *2 this 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 2 extra Relays part #775, to connect, See DIAGRAMS NOTE *3 this vehicle has a GREEN/BLACK (-) for the DRIVERS DOOR in the drivers kick panel and a LIGHT BLUE (-) for ALL OTHER DOORS and is located in the drivers running board harness heading under the drivers seat . When connecting to an ALARM SYSTEM, use both DOOR TRIGGER wires and DIODE ISOLATE. See DIAGRAM, On the 2 Door the LIGHT BLUE (-) is located in the Passenger kick panel.