Cadillac  Catera 1997-2001
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+)   @ IGNITION SWITCH HARNESS
 STARTER  BLACK/RED (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  BROWN (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  BROWN (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  BROWN/WHITE (-) or RED/WHITE (-)  @ BCM, 32-Pin Plug, See NOTE #2
 PARKING LIGHTS ( + )  GRAY/GREEN (+)  @ the PARKING LIGHT RELAY, See NOTE #3
 POWER LOCK  BLACK/BROWN (TYPE B)  @ BCM, 24 Pin PLug, Pin A8, See NOTE #2
 POWER UNLOCK  BLACK/PURPLE (TYPE B)  @ BCM, 24 Pin Plug, Pin A6, See NOTE #2
 DOOR TRIGGER  GRAY (-)  @ BCM, 24 Pin Plug, Pin B2, See NOTE #2
 DOMELIGHT SUPERVISION  USE DOOR TRIGGER  
 TRUNK RELEASE  BLACK/RED (5-Wire) See NOTE #4, (Requires #775 Relay)  @ RELAY, BEHIND BCM
 SLIDING POWER DOOR  N/A  
 HORN  BROWN/WHITE (-)  @ BCM, 32 Pin Plug, Pin C4, See NOTE #2
 TACH  GREEN (AC)  @ ECM, See NOTE #5
 WAIT TO START LIGHT  N/A  
 BRAKE  BLACK/YELLOW (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   BROWN/PURPLE (-)  @ BCM, 24 Pin Plug, Pin A3, See NOTE #2
 ANTI-THEFT  GM's TRANSPONDER SYSTEM, See NOTE #1  @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: This vehicle is equipped with GM'S TRANSPONDER ANTI-THEFT SYSTEM and Requires 791 Bypass Module and an Extra Ignition Key for Remote starting operation. to order go to the SECURITY BYPASS MODULE Page on this website. NOTE #2: the BCM is located in the PASSENGER KICK PANEL. NOTE #3: the PARKING LIGHT Relay is located to the RIGHT of the STEERING COLUMN. NOTE #4: the TRUNK Rlease System on this vehicle uses a 5-Wire Circuit that will require an extra Relay part #775, to connect See DIAGRAM. NOTE #5: the ECM is located in FRONT of the Driver Strut tower, the TACH wire is in the 80 pin plug.