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CADILLAC CTS
MODEL YEAR(S
CTS 2003
KEY T-HARNESS IMMOBILIZER
GMKEY-1 N/A GM's TRANSPONDER ANTI-THEFT System, See NOTE #1
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT Connect to BATTERY ONLY!!!
STARTER YELLOW (+) IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) IGNITION SWITCH HARNESS
IGNITION 2 N/A
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 ( - ) BROWN/WHITE (-) @ DIM, BROWN Plug, Pin B3, See NOTE #2
PARKING LIGHTS ( + ) DO NOT USE!
POWER LOCK ORANGE/BLACK (TYPE B) @ DRIVERS DOOR LOCK SWITCH in DOOR
POWER UNLOCK ORANGE/BLACK (TYPE B) @ DRIVERS DOOR LOCK SWITCH in DOOR
LOCK MOTOR WIRE GRAY (5-WIRE TYPE) @ DRIVERS DOOR MODULE in DOOR
DOOR TRIGGER GRAY (-) @ UNDER DASH LIGHT
DOMELIGHT SUPERVISION TURNS ON with Disarm wire
TRUNK RELEASE LIGHT BLUE (-) @ RIM, RED Plug, Pin B4, See NOTE #3
SLIDING POWER DOOR N/A
HORN TAN (-) @ DIM, GRAY Plug, Pin A6, See NOTE #2
TACH WHITE (AC) @ ECM, Connector 2 Pin 35, See NOTE #4
WAIT TO START LIGHT N/A
BRAKE LT. BLUE/WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM LT. GREEN (-) @ DRIVERS DOOR MODULE in DRIVERS DOOR
ANTI-THEFT GM's TRANSPONDER SYSTEM, See NOTE #1 @ IGNITION SWITCH TUMBLER
NOTES
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 DIM Module is located UNDER the GLOVE BOX.







NOTE #3: the RIM Module is located under the Rear deck on the Passenger side.







NOTE #4: the ECM is located on the Passenger side of the engine.





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