GMC Acadia I facelift (2013-2016) (under left side of dash) 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

2500 2501 COMPUTER DATA LINES SYSTEM BACKUP LAMP VOLT BCK/UP/STOP FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) LEFT BACKUP LAMP LEFT LIFTGATE TAIL LAMP ASSEMBLY LT GRN WIRE ORG/BLK WIRE PARK/ NEUTRAL SIG RED WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT LIFTGATE TAIL LAMP ASSEMBLY SERIAL DATA BUS (+) SERIAL DATA BUS (-) SERIAL DATA BUS- SIG A SIG B SIG C SIG P TAN WIRE TAN/BLK WIRE TRAILER BACKUP LAMP RELAY TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) W/ TRAILER PROVISION WHT WIRE YEL WIRE

10 9 B+ GND 39 40 2500 2501 HI SPD GMLAN + HI SPD GMLAN - 53 55 225 23 GENERATOR TURN ON GENERATOR FIELD 9 10 8 CURRENT SENS SIG LOW REF SPLY VOLT AIR BAG FUSE BATTERY BATTERY CURRENT SENSOR BATTERY CURRENT SENSOR (BEHIND FRONT PASSENGER'S SEAT) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CURRENT SENS SIG DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) GENERATOR GENERATOR FIELD GENERATOR FUSE HOLDER GENERATOR FUSE HOLDER (NEAR GENERATOR) GENERATOR TURN ON GRY WIRE HI SPD GMLAN HI SPD GMLAN HI SPD GMLAN HOT W/ IGNITION MAIN RELAY ENERGIZED I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) INSTRUMENT CLUSTER LOGIC LOW REF LOW REF PNK SPLY VOLT WIRE ORG/ WIRE PNK SPLY VOLT LOW REF CURRENT SENS SIG WIRE PNK SPLY VOLT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/WHT WIRE RVC SNSR FUSE STARTER MOTOR TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) VOLT WHT WIRE

11 6 KEYPAD SIG SUPPLY VOLTAGE 3 2 KEYPAD GREEN LED BACK-UP BCK/UP/ STOP FUSE BLK WIRE BLK/DK GRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (BCM) BRN/WHT WIRE CALL CAMERA SIG (-) DK BLU WIRE DK GRN/WHT WIRE DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR (W/ MEMORY) (ON DRIVER'S DOOR) EMERGENCY GREEN GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN INSIDE REARVIEW MIRROR (ISRVM) KEYPAD GREEN LED KEYPAD RED LED WIRE KEYPAD SIG LCD SIG LED SIG LOGIC LOW REF LT BLU WIRE LT GRN/BLK WIRE MAX MIRROR DIMMING MIRROR DISPLAY MIRROR DISPLAY (W/ REAR VIEW CAMERA MIRROR SIG CAMERA SIG + MIRROR SIG CAMERA SIG + CAMERA SIG - GND BACK UP NAVIGATION SYSTEM OFF MIN ONSTAR PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/WHT WIRE SUPPLY VOLTAGE TELEMATICS BUTTON ASSEMBLY TELEMATICS COMMUNICATIONS INTERFACE MODULE (VCIM) TELEMATICS COMMUNICATIONS INTERFACE MODULE (VCIM) (W/ ONSTAR) W/ ONSTAR W/ REAR VIEW CAMERA W/ REARVIEW CAMERA WHT WIRE YEL WIRE YEL/BLK WIRE

BACK BACK IND BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) BRN WIRE CUSHION, BACK CUSHION, BACK IND DIMMING IND DK BLU WIRE DK GRN WIRE DRIVER SEAT HEATING SWITCH GRY WIRE HEATED SEAT IND DIMMING HIGH TEMP IND LOW TEMP IND LT BLU WIRE MEDIUM IND MEDIUM TEMP IND PASSENGER CUSHION HEATED SEAT ELEMENT PASSENGER SEAT HEATING SWITCH PNK WIRE PPL PPL/WHT WIRE TAN WIRE WHT/BLK WIRE YEL WIRE

1 2 3 PNK WIRE AIR BAG FUSE ALERT LED CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DIMMING CTRL DK GRN WIRE DRIVER INFORMATION CENTER SWITCH FRONTVIEW CAMERA MODULE GROUND GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN 1 VOLT IGN 1 VOLT ALERT LED CTRL DIMMING CTRL INDICATOR DIMMING CONTROL INSTRUMENT CLUSTER LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LO SPD GMLAN SERIAL DATA LOGIC LOGIC INSTRUMENT CLUSTER LOW SPEED GMLAN SERIAL DATA PNK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE RED/WHT WIRE RPA/SBZA/UGDO FUSE SW SIG UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) WHT WIRE WHT/LT GRN WIRE

1 2 3 4 5 6 7 8 LF SPKR OUTPUT (-) AUDIO AUDIO AMPLIFIER AUDIO AMPLIFIER (UNDER LEFT SIDE OF DASH) AUDIO SIG (+) AUDIO AUDIO SIG + BLK WIRE BLK/WHT WIRE BLU DK WIRE BLU WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) BRN WIRE BRN/WHT WIRE BUICK EXCEPT BUICK CENTER I/P SPEAKER CNTRL SIG COMMON COMPUTER DATA LINES SYSTEM CRUISE CRUISE CONTROL SYSTEM CTRL SIG DATA BUS - DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENT REMOTE ENABLE SIG FRT CENTER SPKR OUTPUT (+) GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED TRANSMITTER INFRARED TRANSMITTER (W/ RSE) IR AUDIO IR REMOTE IR SUP VOLT LEFT REAR LEFT REAR COMPARTMENT SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR RIGHT REAR DOOR SPEAKER COMPARTMENT SPEAKER LF LO LVL AUD SIG (+) LF SPKR OUTPUT (+) LOW REF LR LO LVL AUD SIG (+) LR MID SPKR OUTPUT (+) LR SPKR OUTPUT (+) LR SPKR OUTPUT (-) LR SPKR OUTPUT (-) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MUTE MUTE SIG NCA WIRE NEXT ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL PPL CONTROL SYSTEM PPL PPL TRANSMISSIONS SYSTEM PPL/WHT WIRE PREVIOUS REAR SEAT AUDIO CONTROL MODULE RED/WHT WIRE REMOTE SIG RF LO LVL AUD SIG (+) RF SPKR OUTPUT (+) RIGHT REAR COMPARTMENT SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH RR LO LVL AUD SIG (+) RR SPKR OUTPUT (+) SEEK SHIELD SIG SOURCE SUBWOOFER CENTER I/P SPEAKER SPEAKER COMPARTMENT SPEAKER SUBWOOFER LO LVL AUD (-) SUBWOOFER SPEAKER SUBWOOFER SPKR OUTPUT (+) SUBWOOFER SPKR OUTPUT (+) GND SUBWOOFER SPKR OUTPUT (-) B+ LF SPKR OUTPUT (+) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VOICE REC VOL DOWN VOL UP VOLUME DOWN VOLUME UP W/ ACCESSORY STEERING WHEEL CONTROL W/ REDUNDANT (IN INSTRUMENT RADIO, REAR PANEL HARNESS, CARGO CONTROL W/ REDUNDANT RADIO, REAR CARGO CONTROL W/ RSE W/O ACCESSORY STEERING WHEEL CONTROL WHT WIRE YEL WIRE

BCM (BEHIND RIGHT FUSE END OF DASH) BCM FUSE BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) CAMERA SHIELD CAMERA SIG 2 DK BLU WIRE GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK IGN VOLT INSIDE LOGIC REARVIEW MIRROR (ISRVM) INSIDE REARVIEW MIRROR (ISRVM) INSTRUMENT CLUSTER SYSTEM LOGIC LOW REF LT BLU WIRE MIRROR DISPLAY MIRRORS SYSTEM NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE PWR MODE RADIO REARVIEW CAMERA RED WIRE RED/WHT WIRE REV SIG TAN WIRE W/ INSIDE REARVIEW MIRROR W/O INSIDE REAR VIEW MIRROR WHT WIRE YEL WIRE

2 4 IGN IGN KEY RESIS SIG 447 2500 2501 COMPUTER DATA LINES SYSTEM 63 39 40 RLY COIL CTRL HI SPD GMLAN + HI SPD GMLAN - 8 9 HI SPD GMLAN HI SPD GMLAN AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BATTERY BATTERY CURRENT SENSOR BATTERY CURRENT SENSOR (BEHIND FRONT PASSENGER'S SEAT) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CONTROL SOLENOID VALVE ASSEMBLY AUTOMATIC TRANSMISSION ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN IGN IGN KEY RESIS SIG IGNITION SWITCH LOW REF MODE SWITCH (IMS) OF ENGINE) OFF ORG/BLK WIRE P/N SW POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/BLK WIRE RLY COIL CTRL RUN WIRE STARTER MOTOR STARTER RELAY STRTR FUSE TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) WHT WIRE WHT/BLK WIRE YEL WIRE

13 12 LEFT TRAILER TURN SIG LAMP RIGHT TRAILER TURN SIG LAMP 16 17 DATA BUS+ DATA BUS- BACKUP LAMP VOLTAGE BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS - DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) GRY WIRE HOT AT ALL TIMES I/P LAMP VOLT LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LEFT TRAILER TURN SIG LAMP LT GRN WIRE LT TRLR STOP/TRN FUSE ORG/ WIRE PARK LAMP RELAY RED WIRE RED/BLK WIRE RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY RIGHT TRAILER TURN SIG LAMP RT TRLR STOP/TRN FUSE STOP LAMP SUPPLY VOLTAGE STOP LAMP SW SIG TAN WIRE TAN/BLK WIRE TRAILER BACKUP LAMPS RELAY TRAILER CONNECTOR TRAILER CONNECTOR (IF EQUIPPED) TRAILER PROVISION TRAILER PROVISION (BLUNT CUT) (IF EQUIPPED) TRLR BCK/UP FUSE TRLR BRK FUSE TRLR PRK LAMP FUSE TRLR PWR FUSE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) WHT WIRE YEL WIRE