Cadillac CTS II (2007-2014) 15 8 16 7 6 data bus - data bus + data bus + data bus - acc wake up serial data Wiring diagrams

1 3 LO SERIAL DATA HI SERIAL DATA 12 10 DATA BUS - DATA BUS + 15 8 16 7 6 DATA BUS - DATA BUS + DATA BUS + DATA BUS - ACC WAKE UP SERIAL DATA 20 19 DATA BUS + DATA BUS - 3 1 HI SERIAL DATA LO SERIAL DATA 3 4 DATA BUS + DATA BUS - 35 37 DATA BUS + DATA BUS - 36 23 DATA BUS + DATA BUS - 37 24 21 33 DATA BUS + DATA BUS - LO SERIAL DATA HI SERIAL DATA 38 36 DATA BUS - DATA BUS + 8 7 DATA BUS + DATA BUS - A/T ACC WAKE UP SER DATA HI SPD GMLAN SER DATA BUS + ACC WAKE-UP SER DATA AUTOMATIC TRANSMISSION AWD, W/O PEDESTRIAN PROTECTION, W/ ONSTAR BUS-DATA CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) EXCEPT AWD EXCEPT AWD, W/O PEDESTRIAN PROTECTION, ONSTAR W/ PEDESTRIAN PROTECTION HEADLAMP CONTROL MODULE HI SPD GMLAN SER DATA BUS- LO SPD GMLAN SERIAL DATA LT BLU WIRE LT GRN/BLK WIRE M/T PEDESTRIAN IMPACT DETECTION MODULE SENSOR (UNDER CENTER CONSOLE) SERIAL DATA COM ENABLE SPLICE PACK STEERING WHEEL POSITION SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (RIGHT SIDE OF DASH) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) W/ HIGH INTENSITY DISCHARGE W/ ONSTAR W/O HIGH INTENSITY DISCHARGE W/O ONSTAR YAW RATE, LATERAL ACCELEROMETER

1 3 LO SERIAL DATA HI SERIAL DATA 12 10 DATA BUS - DATA BUS + 15 8 16 7 6 DATA BUS - DATA BUS + DATA BUS + DATA BUS - ACC WAKE UP SERIAL DATA 20 19 DATA BUS + DATA BUS - 3 1 HI SERIAL DATA LO SERIAL DATA 3 4 DATA BUS + DATA BUS - 35 37 DATA BUS + DATA BUS - 36 23 DATA BUS + DATA BUS - 37 24 21 33 DATA BUS + DATA BUS - LO SERIAL DATA HI SERIAL DATA 38 36 DATA BUS - DATA BUS + 8 7 DATA BUS + DATA BUS - A/T ACC WAKE UP SER DATA HI SPD GMLAN SER DATA BUS + ACC WAKE-UP SER DATA AUTOMATIC TRANSMISSION AWD, W/O PEDESTRIAN PROTECTION, W/ ONSTAR BUS-DATA CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) EXCEPT AWD EXCEPT AWD, W/O PEDESTRIAN PROTECTION, ONSTAR W/ PEDESTRIAN PROTECTION HEADLAMP CONTROL MODULE HI SPD GMLAN SER DATA BUS- LO SPD GMLAN SERIAL DATA LT BLU WIRE LT GRN/BLK WIRE M/T PEDESTRIAN IMPACT DETECTION MODULE SENSOR (UNDER CENTER CONSOLE) SERIAL DATA COM ENABLE SPLICE PACK STEERING WHEEL POSITION SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (RIGHT SIDE OF DASH) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) W/ HIGH INTENSITY DISCHARGE W/ ONSTAR W/O HIGH INTENSITY DISCHARGE W/O ONSTAR YAW RATE, LATERAL ACCELEROMETER