Cadillac STS I (2004-2007) engine control module (ecm) (below left headlamp) Wiring diagrams

2500 2501 COMPUTER DATA LINES SYSTEM A/C PRESS LOW REF APP LOW REF APP LOW REF A/C REFRIGERANT PRESSURE SENSOR (NEAR LEFT FRONT STRUT TOWER) A/C SYSTEM ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) APPS 1 SIG VEHICLE SPEED SIG MAF SEN SIG BLK WIRE BRN WIRE BRN/WHT WIRE COOLING FANS SYSTEM 473 5069 DATA WAKE-UP DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM, TCM FUSE ENGINE CONTROL MODULE (ECM) (BELOW LEFT HEADLAMP) EVAP VENT SOL CTNL A/C PRESS SENS SIG EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID (ABOVE REAR DIFFERENTIAL) EXTERIOR LIGHTS SYSTEM 17 447 FAN RLY CTRL MAIN RLY CTRL FUEL PMP RLY CNTL MIL CNTL A/C COMP CLTCH RLY FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IAT SEN SIG IAT SIG IGN IGN 1 VLT IGN 1 VLT IGN 1 VLT BATTERY + VLT APPS 2 SIG PNK PNK WIRE INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) LO SPD COOL FAN RLY LOGIC LOW REF LT BLU WIRE MAF LOW REF A/C PRESS LOW REF MAIN RELAY MASS AIR FLOW (MAF) SENSOR (IN AIR INTAKE DUCT) MIL IND ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL RADIO RED/WHT WIRE SENS SIG SENSOR 1 STARTING SYSTEM STOPLAMP SW SIG STRTR ENABLE RLY CNTL TAN WIRE TAN/BLK WIRE TCM/ IPC/ ECM FUSE TO EVEN COILS FUSE (DIAGRAM 4 OF 5) TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION ACTUATOR SOLENOID EXHAUST BANK 1 (FRONT OF RIGHT CYL HEAD) CAMSHAFT POSITION ACTUATOR SOLENOID EXHAUST BANK 2 (FRONT OF LEFT CYL HEAD) CAMSHAFT POSITION ACTUATOR SOLENOID INTAKE BANK 1 (FRONT OF RIGHT CYL HEAD) CAMSHAFT POSITION ACTUATOR SOLENOID INTAKE BANK 2 (FRONT OF LEFT CYL HEAD) CAMSHAFT POSITION SENSOR EXHAUST BANK 1 CAMSHAFT POSITION SENSOR EXHAUST BANK 2 CAMSHAFT POSITION SENSOR INTAKE BANK 1 CAMSHAFT POSITION SENSOR INTAKE BANK 2 CHARGING CIRCUIT CKP SEN 1 SIG KNOCK SEN 2 SIG GEN FIELD DUTY CYC SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SEN SIG EVAP CAN PRG SOL CNTL ENGINE CONTROL MODULE (ECM) (BELOW LEFT HEADLAMP) FUEL INJ 4 CNTL GEN TURN ON SIG IC 6 CNTL GROUND GRY WIRE KNOCK SENSOR (KS) 1 (UNDER INTAKE MANIFOLD) KNOCK SENSOR (KS) 2 (UNDER INTAKE MANIFOLD) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAP LOW REF TPS LOW REF ECT LOW REF LOW REF MAP SEN SIG ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK/BLK WIRE PPL PPL 15 16 17 18 19 PPL CKP LOW REF LOW REF PPL IC 1 CNTL IC 2 CNTL IC 7 CNTL IC 3 CNTL IC 4 CNTL IC 8 CNTL IC 5 CNTL PPL/WHT WIRE SEN SIG TAC MTR CNTL 1 TAC MTR CNTL 2 TAN WIRE TAN/WHT WIRE TPS 1 SIG TPS 2 SIG PPL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE