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

11 16 23 FOG LP RLY CTRL HDLP HI RLY CTRL HDLP LOW BEAM VOLTAGE 18 25 PPL BEAM SIG PASS SIG 8 11 12 17 PARK LPS VOL AMB SENS SIG ON SIG OFF SIG 8 9 21 SER DATA + SER DATA - FOG LP ENABLE A/C AMBIENT LIGHT SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) AUTO AUTOMATIC BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRL VOLTAGE DSPLY FUSE FOG LAMP DRIVER IND INFORMATION CENTER DISPLAY FOG LAMP SW GENERATOR FUSE HOLDER (NEAR GENERATOR) HDLP LOW BEAM RLY CTRL HEAD HEADLAMP SWITCH HIGH BEAM IND HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (BEHIND RIGHT END OF DASH) LEFT DAYTIME RUNNING LAMP RELAY LOGIC LOW HIGH BEAM SW HIGH PPL LT DRL FUSE LT GRN/BLK WIRE MANUAL A/C OFF ORG/ WIRE ORG/BLK WIRE PARK PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PARK BRK SW SIG PNK/WHT WIRE PPL RED WIRE RED/WHT WIRE RIGHT DAYTIME RUNNING LAMP RELAY RT DRL FUSE SER DATA SUNLOAD SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE

16 23 HDLP HI RLY CTRL HDLP LOW BEAM VOLTAGE PPL 2 3 4 5 PNK WIRE 26 18 25 STOP LP SW SIG BEAM SIG PASS SIG PPL 6 7 PPL 8 11 12 17 PARK LPS VOL AMB SENS SIG ON SIG OFF SIG 8 9 21 SER DATA + SER DATA - FOG LP ENABLE AMBIENT LIGHT SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) AUTO AUTOMATIC A/C BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER IND INFORMATION CENTER DISPLAY DRL VOLTAGE DSPLY FUSE FOG LAMP SW HDLP LOW BEAM RLY CTRL HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP SWITCH HI BEAM FUSE HIGH BEAM FOG LAMP IND HOT AT ALL TIMES HOT AT ALL TIMES GENERATOR FUSE HOLDER (NEAR GENERATOR) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (BEHIND RIGHT END OF DASH) LEFT HEADLAMP LOW BEAM RELAY LOGIC LOW HIGH BEAM SW HIGH LT GRN WIRE LT GRN/BLK WIRE LT LO BEAM FUSE MANUAL A/C OFF ORG/ WIRE ORG/BLK WIRE PARK PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PARK BRK SW SIG PNK WIRE PNK/WHT WIRE PPL RED WIRE RED/WHT WIRE RIGHT HEADLAMP LOW BEAM RELAY RT LO BEAM FUSE SER DATA SUNLOAD SENSOR (UNDER CENTER OF DASH, NEAR WINDSHIELD DEFROST VENT) 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