GMC Acadia I facelift (2013-2016) (under center of dash, near windshield defrost vent) Wiring diagrams

16 17 GMLAN + GMLAN - 22 21 6 LOW REF 24 8 LOW REF ECT 2500 2501 COMPUTER DATA LINES SYSTEM A/C CLUTCH A/C PRESSURE A/C REFRIGERANT PRESSURE SENSOR A/C REFRIGERANT PRESSURE SENSOR (NEAR REAR OF A/C COMPRESSOR) AMBI AIR TEMP SENS SIG AMBI AIR TEMP SENS SIG LOW SPEED GMLAN AMBIENT AIR TEMPERATURE SENSOR AUX MODE DOOR CTRL BLK WIRE BLK/WHT WIRE BLOWER SPEED DOWN BLOWER SPEED UP BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER SENSOR DRIVER TEMP DOWN DRIVER TEMP UP DRL SENSOR DRV SUNLOAD SENS SIG ECT ELECTRIC VARIABLE DISPLACEMENT CTRL ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT SIDE OF ENGINE) GMLAN GND POWER MODE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HI SPD BUS- HI SPD CLG FAN HOT AT ALL TIMES HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IN AIR TEMP SENS SIG IN AIR TEMP SENS SIG PASS SUNLOAD SENS SIG INSIDE AIR TEMPERATURE SENSOR LO SPD CLG FAN LOGIC LOGIC HVAC CONTROL MODULE LOW REF LOW SPEED GMLAN LT BLU/BLK WIRE LT GRN/BLK WIRE MODE DOWN MODE UP ORG/ WIRE ORG/BLK WIRE PASS SUNLOAD SENS SIG PASSENGER SENSOR PNK 3 4 WIRE PNK WIRE POWER MODE PPL REAR DEFOG REAR WINDOW DEFROST ELECTRIC VARIABLE SWITCH DISPLACEMENT COMPRESSOR SPLY RED/WHT WIRE RIGHT AIR TEMP SW SIG SUNLOAD SENSOR SUNLOAD SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) TAN WIRE TAN/BLK WIRE UPPER LEFT AIR TEMPERATURE SENSOR UPPER LEFT AIR TEMPERATURE SENSOR (FRONT LEFT END OF HVAC MODULE) UPPER LEFT TEMP SENS SIG UPPER RIGHT AIR TEMPERATURE SENSOR UPPER RIGHT AIR TEMPERATURE SENSOR (FRONT RIGHT END OF HVAC MODULE) UPPER RIGHT TEMP SENS SIG WHT WIRE YEL WIRE

AMB SENS SIG AMBIENT LIGHT SENSOR AUTO AUTOMATIC A/C BEAM SIG BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER DISPLAY DRL VOLTAGE DSPLY FUSE FOG LAMP IND FOG LAMP SW FOG LP ENABLE FOG LP RLY CTRL GENERATOR FUSE HOLDER HDLP HI RLY CTRL HDLP LOW BEAM VOLTAGE HDLP LOW BEAM RLY CTRL HEAD HEADLAMP SWITCH HIGH BEAM IND HIGH BEAM SW HIGH PPL HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT DAYTIME RUNNING LAMP RELAY LOGIC LT DRL FUSE LT GRN/BLK WIRE MANUAL A/C OFF OFF SIG ON SIG ORG/ WIRE ORG/BLK WIRE PARK PARK BRAKE SWITCH PARK BRK SW SIG PARK LPS VOL PASS SIG PNK/WHT WIRE PPL RED WIRE RED/WHT WIRE RIGHT DAYTIME RUNNING LAMP RELAY RT DRL FUSE SER DATA SUNLOAD SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE

AMB SENS SIG AMBIENT LIGHT SENSOR AUTO AUTOMATIC A/C BEAM SIG BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY DRL VOLTAGE DSPLY FUSE FOG LAMP IND FOG LAMP SW FOG LP ENABLE GENERATOR FUSE HOLDER HDLP HI RLY CTRL HDLP LOW BEAM VOLTAGE HDLP LOW BEAM RLY CTRL HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP SWITCH HI BEAM FUSE HIGH BEAM IND HIGH BEAM SW HIGH PPL HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT HEADLAMP LOW BEAM RELAY LOGIC LT GRN WIRE LT GRN/BLK WIRE LT LO BEAM FUSE MANUAL A/C OFF OFF SIG ON SIG ORG/ WIRE ORG/BLK WIRE PARK PARK BRAKE SWITCH PARK BRK SW SIG PARK LPS VOL PASS SIG PNK WIRE PNK/WHT WIRE PPL RED WIRE RED/WHT WIRE RIGHT HEADLAMP LOW BEAM RELAY RT LO BEAM FUSE SER DATA STOP LP SW SIG SUNLOAD SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ DRL W/O DRL WHT WIRE YEL WIRE

16 17 GMLAN + GMLAN - DRL AMBIENT LIGHT SENS SIG 22 21 6 LOW REF 24 8 LOW REF ECT 7 8 9 10 11 12 13 14 15 16 PPL A/C A/C CLUTCH A/C GND A/C PRESSURE A/C REFRIGERANT PRESSURE SENSOR A/C REFRIGERANT PRESSURE SENSOR (NEAR REAR OF A/C COMPRESSOR) AMBIENT AIR TEMP SIG AMBIENT AIR TEMPERATURE SENSOR AMBIENT LIGHT SENSOR AMBIENT LIGHT SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) AUX BLOWER SPEED AUX MODE AUX MODE DOOR CTRL AUXILIARY DOOR CTRL AUXILIARY DOOR CTRL AUX BLOWER SPEED BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRL AMBIENT LIGHT SENS SIG ECT ELECTRIC VARIABLE DISPLACEMENT COMPRESSOR SPLY ELECTRIC VARIABLE DISPLACEMENT CTRL ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LEFT SIDE OF ENGINE) GMLAN GRN WIRE GRY WIRE HI SPD CLG FAN HI SPD DATA + HOT AT ALL TIMES HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) INDICATOR LO SPD CLG FAN LOGIC LOW REF LOW SPEED GMLAN LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER MODE POWER MODE GND B+ LOW SPEED GMLAN PPL PPL PNK WIRE PPL/WHT WIRE REAR DEFOG REAR WINDOW DEFROST SWITCH RECIRCULATE RECIRCULATE GND RED WIRE RED/WHT WIRE RH AIR TEMP SW SIG RH AIR TEMP SW SIG AUX MODE AUX MODE DOOR CTRL TAN WIRE TAN/BLK WIRE TEMPERATURE TEMPERATURE GND WHT WIRE YEL WIRE