GMC Acadia I facelift (2013-2016) computer data lines system 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

AIR TEM DOOR SIG AIR TEMP DOOR CTRL AIR TEMPERATURE SENSOR (REAR LEFT END OF HVAC MODULE) AUTO MODE AUX MODE MOTOR VOLT AUX MODE MOTOR VOLT AUX TEMP MOTOR VOLT AUX TEMP MOTOR VOLT AUXILIARY AIR TEMP AUXILIARY AIR TEMP SIG AUXILIARY SPD CTRL AUXILIARY SPD CTRL MODE DOOR CTRL AUXILIARY AIR TEMP AUXILIARY TEMP DOOR BLOWER SPD CTRL BRN WIRE COMPUTER DATA LINES SYSTEM DISPLAY DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE COOLANT TEMPERATURE GAUGE EVAP TEMP SENS SIG EVAPORATOR TEMPERATURE SENSOR EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) GRY WIRE GRY/BLK WIRE HVAC CONTROL MODULE LEFT AIR TEMPERATURE DOOR ACTUATOR LO RH AIR TEMP SIG LOGIC LOGIC INSTRUMENT CLUSTER LOW REF LOWER LEFT AIR TEMP LOWER LEFT AIR TEMPERATURE SENSOR LOWER RIGHT AIR TEMPERATURE SENSOR LOWER RIGHT AIR TEMPERATURE SENSOR (REAR RIGHT END OF HVAC MODULE) LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE MODE ACTUATOR MODE DOOR CTRL MODE POS ORG/ WIRE PASSENGER TEMP DOWN PASSENGER TEMP UP PPL RECIRCULATE RECIRCULATION A RECIRCULATION ACTUATOR RECIRCULATION B RECIRCULATION POS RIGHT AIR TEMPERATURE DOOR ACTUATOR RIGHT TEMP A TAN WIRE TAN/BLK WIRE WHT WIRE WHT/BLK 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

1 2 3 4 5 B+ B+ B+ B+ RH TURN SIG IND LAMP VOLT 1 2 3 4 PPL 15 16 19 LEFT TURN SIG RIGHT TURN SIG HAZARD SW SIG 5-VOLT REFERENCE 5382 5381 5380 68 47 48 LOW REFERENCE 5 VOLT REFERENCE SENSOR SIGNAL AUTO BCK/UP/STOP FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM CTSY FUSE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) GRY WIRE HAZARD SW SIG HAZARD WARNING SWITCH HEAD HEADLAMP SWITCH HOT AT ALL TIMES I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN VOLTAGE LEFT TURN SIG LEFT TURN SIG IND LAMP VOLT LOGIC LOGIC RIGHT TAIL LAMP ASSEMBLY LOW REFERENCE LR STOP/TURN LAMP VOLT LT BLU WIRE LT BLU/WHT WIRE LT/TRN/SIG FUSE MAF SENSOR SIG NCA WIRE OFF OUTAGE DETECTION SIGNAL PARK PARK HEAD PARK LAMP RLY CTRL PARK LAMPS VOLT PPL RED/WHT WIRE RH TURN SIG IND LAMP VOLT RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/ STOP, TURN SIG LAMP RIGHT TURN SIG RR STOP/TURN LAMP VOLT RT/TRN/SIG FUSE SENSOR SIG SENSOR SIGNAL SENSOR SPLY VOLT SERIAL DATA BUS- STOP LAMP VOLTAGE SWITCH SIGNAL 2 TAN WIRE TAN/BLK WIRE TRAILER PROVISION (BLUNT CUT) (IF EQUIPPED) TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) WHT WIRE YEL WIRE YEL/BLK WIRE

AIR BAG FUSE BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR (ON DRIVER'S DOOR) GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN VOLT INSTRUMENT CLUSTER LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT LICENSE PLATE LAMP LEFT LIFTGATE TAIL LAMP ASSEMBLY LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP LEFT TAIL/ STOP, TURN SIG LAMP LEFT TURN IND LOGIC LOGIC LEFT TAIL LAMP ASSEMBLY LOW SPEED GMLAN LT BLU/WHT WIRE LT PRK FUSE NCA WIRE PARK LAMP RELAY PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER OUTSIDE REARVIEW MIRROR (ON FRONT PASSENGER'S DOOR) PNK IGN VOLT WIRE PNK WIRE PPL RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP ASSEMBLY RIGHT LICENSE PLATE LAMP RIGHT LIFTGATE TAIL LAMP ASSEMBLY RIGHT TAIL LAMP RIGHT TURN IND RT PRK FUSE TRAILER TOW CIRCUIT TRLR PRK LAMP FUSE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) W/ MANUAL FOLDING W/ POWER FOLDING WHT WIRE YEL WIRE YEL/BLK 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

1 2 3 LOW SPEED GMLAN 1-2, 3-4, 5-6, 7-8) AIR BAG FUSE AIR BAG IND BAG OFF BAG OFF PASS AIR BAG ON BATT POSITIVE VOLT BELT IND BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY GMLAN GMLAN LOW SPEED GROUND GRY WIRE HOT AT ALL TIMES HOT IN ON OR START I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) I/P MOD HI CTRL STAGE 1 I/P MOD HI CTRL STAGE 2 I/P MOD LO CTRL STAGE 1 I/P MOD LO CTRL STAGE 2 IGN VOLT IND CTRL IND CTRL BAG ON PASS AIR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER FLOOR CONSOLE) INSTRUMENT CLUSTER LEFT FRONT IMPACT SENSOR LINES SYSTEM LINES SYSTEM COMPUTER DATA LO SPD GM LAN SERIAL DATA LOGIC LOW SPEED LOW SPEED GMLAN NCA WIRE ORG/ WIRE PASS AIR PASS SEAT PASS SEAT BELT IND PASSENGER AIR BAG DISABLE INDICATOR PASSENGER AIR BAG IND PASSENGER AIR BAG IND (USA) PASSENGER AIR BAG OFF IND PASSENGER AIR BAG OFF IND PASSENGER AIR BAG ON IND PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE MODULE PNK POWER DISTRIBUTION WIRE PNK WIRE POWER DISTRIBUTION PPL RED/WHT WIRE RIGHT FRONT IMPACT SENSOR SEAT BELT IND SEAT BELT IND PPL SHORTING BAR STEER WHL HI CTRL STAGE 1 STEER WHL HI CTRL STAGE 2 STEER WHL LO CTRL STAGE 1 STEER WHL LO CTRL STAGE 2 STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL TAN WIRE TAN/ORG WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) USA WHT 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

8 14 15 RF DOOR AJAR SW SIG RR DOOR AJAR SW SIG LR DOOR AJAR SW SIG AIR BAG FUSE AUTO BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRAKE FLUID LEVEL SIGNAL BRAKE FLUID LEVEL SWITCH BRAKE FLUID LEVEL SWITCH (ON RIGHT SIDE OF BRAKE FLUID RESERVOIR) BRAKE IND BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER DOOR SWITCH PANEL CONTROL MODULE DRIVER DOOR SWITCH PANEL CONTROL MODULE (W/ EXPRESS UP/DOWN WINDOWS) DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH GRY WIRE GRY/BLK WIRE HEAD HEADLAMP SWITCH HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN II/III/KEY IN IGN IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER FLOOR CONSOLE) INSTRUMENT CLUSTER KEY-IN IGNITION SWITCH LEFT REAR DOOR LATCH (REAR OF LEFT REAR DOOR) LEFT SEAT BELT SW SIG LF DOOR AJAR SW SIG LOGIC LOW OIL PRESSURE IND LOW REF LOW SPD GMLAN SER DATA LOW SPEED GMLAN SERIAL LOW TIRE PRESSURE IND LR DOOR AJAR SW SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NCA WIRE OFF OFF AUTO PARK ORG/ WIRE ORG/BLK WIRE PARK PARK BRAKE SW SIG PARK BRAKE SWITCH PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PASSENGER AIR BAG DISABLED INDICATOR PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR SWITCH PANEL CONTROL MODULE PASSENGER SEAT BELT BUCKLE PASSENGER SEAT BELT IND PASSENGER SEAT BELT IND PPL PASSENGER SEAT BELT SWITCH PNK LOW REF WIRE PNK WIRE PPL PWR MODE FUSE RADIO REAR PRK LPS SPLY VOLT RED/WHT WIRE RF DOOR AJAR SW SIG RIGHT REAR DOOR LATCH (REAR RIGHT REAR DOOR) RIGHT SEAT BELT SW SIG RR DOOR AJAR SW SIG RUN WIRE SEAT BELT IND SER DATA SW SIG TAN/WHT WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) W/ EXPRESS UP/DOWN WINDOWS W/O EXPRESS UP/DOWN WINDOWS WHT WIRE YEL WIRE