GMC Acadia I (2006-2013) low ref Wiring diagrams

11 35 39 LOW REF 16 17 2500 2501 GMLAN + GMLAN - 44 82 LOW REF ECT A/C PRESSURE A/C REFRIGERANT PRESSURE SENSOR (NEAR REAR OF A/C COMPRESSOR) AMBI AIR TEMP SENS SIG LOW SPEED GMLAN AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION OUTPUT SHAFT SPEED (OSS) SENSOR BLK WIRE BLK/WHT WIRE BLOWER SPEED DOWN BLOWER SPEED UP BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER SENSOR DRIVER TEMP DOWN DRIVER TEMP UP DRL SENSOR ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT SIDE OF ENGINE) GND POWER MODE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IN AIR TEMP SENS SIG PASS SUNLOAD SENS SIG INSIDE AIR TEMPERATURE SENSOR INSTRUMENT CLUSTER SYSTEM LOGIC LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE MODE DOWN MODE UP ORG/ WIRE ORG/BLK WIRE PASSENGER SENSOR PNK 1 2 WIRE PNK WIRE POWER MODE REAR DEFOG RED/WHT WIRE SUNLOAD SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) UPPER LEFT AIR TEMPERATURE SENSOR (FRONT LEFT END OF HVAC MODULE) UPPER RIGHT AIR TEMPERATURE SENSOR (FRONT RIGHT END OF HVAC MODULE) WHT WIRE YEL WIRE

AUTO MODE AUX MODE MOTOR VOLT AUX TEMP MOTOR VOLT AUXILIARY SPD CTRL MODE DOOR CTRL AUXILIARY AIR TEMP BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) GRY WIRE GRY/BLK WIRE HVAC CONTROL MODULE LOGIC LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REF LOWER LEFT AIR TEMPERATURE SENSOR (REAR LEFT END OF HVAC MODULE) LOWER RIGHT AIR TEMPERATURE SENSOR (REAR RIGHT END OF HVAC MODULE) LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE ORG/ WIRE PASSENGER TEMP DOWN PASSENGER TEMP UP PPL RECIRCULATE TAN WIRE TAN/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

2 10 B+ LOW SPEED GMLAN BLK WIRE BLK/ GRY WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COURTESY LAMPS ON CTSY FUSE DK GRN WIRE DOME OVERRIDE SWITCH DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER DOOR LOCK/ WINDOW SWITCH GRY/BLK WIRE HEADLAMP SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) INADV/ PWR/LED FUSE LEFT I/P COURTESY LAMP LEFT LIFTGATE COURTESY LAMP LEFT REAR DOOR LATCH (REAR OF LEFT REAR DOOR) LIFTGATE LATCH ASSEMBLY (W/ MANUAL LIFTGATE) (BOTTOM CENTER OF LIFTGATE) LOGIC LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK/ WINDOW SWITCH PNK/BLK WIRE PPL RED/WHT WIRE RIGHT I/P COURTESY LAMP RIGHT LIFTGATE COURTESY LAMP RIGHT REAR DOOR LATCH (REAR RIGHT REAR DOOR) SER DATA SW SIG SWITCH TAN/WHT WIRE W/ EXPRESS UP/DOWN WINDOWS W/ I/P COURTESY LAMPS W/O I/P COURTESY LAMPS W/O EXPRESS UP/DOWN WINDOWS YEL WIRE

AIR BAG FUSE BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DR LOCK ACTR UNLOCK CRTL DR LOCK ACTR LOCK CRTL DRIVER INFORMATION CENTER (DIC) DISPLAY DSPLY FUSE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN VOLT INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DOOR LATCH (REAR OF LEFT REAR DOOR) LIFTGATE LATCH ASSEMBLY (W/O POWER LIFTGATE) (BOTTOM CENTER OF LIFTGATE) LOCK LOGIC LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE PASSENGER DOOR LATCH ASSEMBLY (REAR OF FRONT PASSENGER'S DOOR) PASSENGER DOOR LOCK/WINDOW SWITCH PDM FUSE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (IF EQUIPPED) RF DOOR AJAR SECURITY IND SER DATA SERIAL DATA TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) UNLOCK YEL WIRE

1 2 3 4 5 6 7 8 SER DATA BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES DIMMER DK GRN WIRE HEAD UP DISPLAY (HUD) HEAD UP DISPLAY (HUD) SWITCH HOT AT ALL TIMES HUD SW SIG GROUND OFF/DIMMING B+ HVAC FUSE I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE PAGE PPL/WHT WIRE RED/WHT WIRE SYSTEM

1 2 3 4 IGN VOLT GND LIN NETWORK 14 15 RR DOOR AJAR LR DOOR AJAR 16 17 SER DATA BUS+ SER DATA BUS- 2500 2501 COMPUTER DATA LINES SYSTEM AIR CONDITIONING/ HEATER SYSTEM BLK WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BUS - COMPUTER DATA LINES SYSTEM DK GRN WIRE DOWN WINDOWS) DR/LCK FUSE DRIVER DOOR LATCH (W/ EXPRESS UP/ DRIVER DOOR LATCH (W/O EXPRESS UP/ DOWN WINDOWS) DRIVER DOOR LOCK/ WINDOW SWITCH (W/ EXPRESS UP/ DOWN WINDOWS) ELECTRONIC COMPASS MODULE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) LEFT REAR DOOR LATCH (REAR OF LEFT REAR DOOR) LF DOOR AJAR LIFTGATE AJAR 10 8 LF DOOR AJAR RF DOOR AJAR LIFTGATE LATCH ASSEMBLY (W/ MANUAL LIFTGATE) (BOTTOM CENTER OF LIFTGATE) LIN NETWORK BUS LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PASSENGER DOOR LATCH (W/ EXPRESS UP/ DOWN WINDOWS) PASSENGER DOOR LATCH (W/O EXPRESS UP/ DOWN WINDOWS) PASSENGER DOOR LOCK/ WINDOW SWITCH (W/ EXPRESS UP/ DOWN WINDOWS) PDM FUSE PNK WIRE PNK/ (NEAR BASE OF LEFT "D" PILLAR) WIRE PNK/BLK WIRE POWER MODE PRK BRK SW SIG RED/WHT WIRE RF DOOR AJAR RIGHT REAR DOOR LATCH (REAR RIGHT REAR DOOR) SERIAL DATA TAN WIRE TAN/BLK WIRE TAN/WHT WIRE YEL WIRE

11 35 39 LOW REF 16 17 2500 2501 COMPUTER DATA LINES SYSTEM GMLAN + GMLAN - 193 735 1450 DEFOGGER SYSTEM 3 4 5 PNK WIRE 44 82 LOW REF ECT A/C GND A/C PRESSURE A/C REFRIGERANT PRESSURE SENSOR (NEAR REAR OF A/C COMPRESSOR) AMBIENT AIR TEMP SIG AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION OUTPUT SHAFT SPEED (OSS) SENSOR AUXILIARY DOOR CTRL AUX BLOWER SPEED BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT SIDE OF ENGINE) GRN WIRE GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) INDICATOR INSTRUMENT CLUSTER SYSTEM LOGIC LOW REF LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER MODE POWER MODE GND B+ LOW SPEED GMLAN PPL/WHT WIRE REAR DEFOG RECIRCULATE GND RED WIRE RED/WHT WIRE RH AIR TEMP SW SIG AUX MODE AUX MODE DOOR CTRL TAN WIRE TAN/BLK WIRE TEMPERATURE GND TRANSMISSION CONTROL MODULE (TCM) WHT WIRE YEL WIRE

1 2 B+ LOW REF 1 2 PPL BLOWER VOLT LOW REF 6 5 4 3 2 1 B+ GND AUX BLOWER SPEED AUX BLOWER SPEED AUX TEMPERATURE AUX MODE AUX TEMP AUXILIARY AIR TEMPERATURE ACTUATOR (ON REAR HVAC MODULE) AUXILIARY BLOWER MOTOR (ON REAR HVAC MODULE) AUXILIARY BLOWER MOTOR CONTROL MODULE (ON REAR HVAC MODULE) AUXILIARY HVAC CONTROL ASSEMBLY AUXILIARY MODE ACTUATOR (ON REAR HVAC MODULE) BLK WIRE BLOWER MOTOR (PART OF HVAC MODULE, BEHIND GLOVE BOX) BLOWER MOTOR CONTROL MODULE (BEHIND GLOVE BOX, IN FRONT OF BLOWER MOTOR) BLOWER SPEED BRN WIRE DK GRN WIRE FLOOR MODE FLOOR/VENT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HVAC BLWR FUSE LOGIC LOW REF LT GRN WIRE LT GRN/WHT WIRE ORG/ WIRE PNK 4 5 WIRE PNK WIRE PPL PPL/WHT WIRE RED/BLK WIRE RED/WHT WIRE RR HVAC FUSE UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) VENT MODE VOLT GND WHT WIRE YEL WIRE

5 VOLT REF 1 5 VOLT REF 3 5-VOLT REF 2 BLK WIRE BRN WIRE BRN/WHT WIRE CAM POS INTAKE SENS CAM POS EXHAUST SENS CKP SENSOR SIGNAL FED SENSOR SIGNAL CAMSHAFT POSITION (CMP) SENSOR EXHAUST BANK 1 (FRONT OF RIGHT CYLINDER HEAD) CAMSHAFT POSITION (CMP) SENSOR EXHAUST BANK 2 (FRONT OF LEFT CYLINDER HEAD) CAMSHAFT POSITION (CMP) SENSOR INTAKE BANK 1 (FRONT OF RIGHT CYLINDER HEAD) CAMSHAFT POSITION (CMP) SENSOR INTAKE BANK 2 (FRONT OF LEFT CYLINDER HEAD) CRANKSHAFT POSITION (CKP) SENSOR (RIGHT SIDE OF ENGINE BLOCK) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) FUEL RAIL PRESSURE (FRP) SENSOR (TOP FRONT OF ENGINE) GRY WIRE HIGH PRESSURE FUEL PUMP IGN CTRL LO REF BANK 2 KNOCK SENSOR 1 SIGNAL KNOCK SENSOR 2 SIGNAL LOW REF LOW REF 5 VOLT REF 3 LOW REF LOW REF LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE OIL PRESSURE SW SIG VACUUM ASSIST PUMP RLY ORG/ WIRE ORG/BLK WIRE PNK/BLK WIRE PPL PPL CAM POS EXHAUST SENS GENERATOR TURN ON SIG PPL/WHT WIRE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1271 2700 1589 AIR CONDITIONING SYSTEM 24 25 26 27 PPL PPL PPL 3120 380 AIR CONDITIONING SYSTEM 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 GMLAN SERIAL DATA BUS+ 439 2501 540 447 5991 COMPUTER DATA LINES SYSTEM 459 473 335 1272 1274 1164 6289 3220 17 AIR CONDITIONING SYSTEM A/C REFRIGERANT SENS SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) AIR CONDITIONING SYSTEM APP SENS 2 SIG BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT SIDE OF ENGINE) EVAP CANISTER VENT SOL FUEL TANK PRES SENS SIG GRY WIRE GRY/WHT WIRE LOW REF LOW REF 5-VOLT REFERENCE 3 FUEL LEVEL SENS SIG LOW REF FUEL PUMP RLY CTRL LOW REF LOW REF TP SENS 2 SIG TP SENS 1 SIG PPL LT BLU WIRE LT BLU/WHT WIRE MAF SENS SIG 5 VOLT REF 1 APP SENS 1 SIG ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK/NEUTRAL SIG PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/WHT WIRE STARTING/CHARGING SYSTEM STOP LP SW SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE BODY (TOP REAR OF ENGINE) TRANSMISSIONS SYSTEM WAKEUP SERIAL DATA WHT WIRE WHT/BLK WIRE YEL WIRE