GMC Acadia I facelift (2013-2016) hvac control module 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

15 16 LOW SPEED GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA 17 16 HI SPEED GMLAN SERIAL DATA BUS- HI SPEED GMLAN SERIAL DATA BUS+ AUXILIARY RADIO/HVAC CONTROLS AUXILIARY RADIO/HVAC CONTROLS (W/ EARPHONE JACKS, REAR SEAT AUDIO CONTROL) BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE COMMUNICATION ENABLE COMPASS MODULE (IF EQUIPPED) (ABOVE REAR CENTER OF HEADLINER) CONTENT THEFT DETERRENT CONTROL MODULE CONTENT THEFT DETERRENT CONTROL MODULE (IN STEERING COLUMN, AT IGNITION SWITCH) DIGITAL RADIO RECEIVER CONTROL MODULE DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK SWITCH PANEL CONTROL MODULE DRIVER SEAT HEATING CONTROL MODULE DRIVER WINDOW MOTOR (MIDDLE OF DRIVER'S DOOR) FRONT VIEW CAMERA MODULE FRONT VIEW CAMERA MODULE (IF EQUIPPED) FRONT, REAR PARKING ASSIST CONTROL MODULE GRY WIRE HEAD-UP DISPLAY (IF EQUIPPED) HEADLAMP CONTROL MODULE HI SPD GMLAN SERIAL DATA BUS + HI SPEED GMLAN SERIAL DATA BUS - HVAC CONTROL MODULE IGNITION VOLTAGE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER FLOOR CONSOLE) INSTRUMENT CLUSTER LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP HORIZONTAL MOTOR LEFT HEADLAMP HORIZONTAL MOTOR LEFT HEADLAMP ASSEMBLY LEFT SIDE OBJECT SENSOR LEFT SIDE OBJECT SENSOR (W/ OBSTACLE DETECTION SIDE ACTIVE SAFETY) LIFTGATE CONTROL MODULE (LGM) (IF EQUIPPED) (NEAR BASE OF LEFT "D" PILLAR) LIN LINEAR INTERCONNECT NETWORK LINEAR INTERCONNECT NETWORK BUS LOGIC LOW SPEED GMLAN SERIAL DATA LT BLU WIRE MEMORY SEAT CONTROL MODULE (UNDER DRIVER'S SEAT) NETWORK BUS ORG/ WIRE PASSENGER DOOR SWITCH PANEL CONTROL MODULE PASSENGER PRESENCE MODULE RADIO RED WIRE REMOTE CONTROL DOOR LOCK RECEIVER RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP HORIZONTAL MOTOR TAN WIRE TAN/BLK WIRE UP/DOWN W/ EXPRESS W/ MEMORY W/O MEMORY WHT WIRE YEL WIRE

3 7 LOW REF HEATING ELEMENT VOLT AUTOMATIC A/C MANUAL A/C BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DOOR DR/LCK FUSE DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR (ON DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR (W/ MANUAL DRIVER OUTSIDE REARVIEW MIRROR (W/ POWER FOLDING) (ON DRIVER'S DOOR) EXCEPT BUICK BUICK FOLDING) (ON DRIVER'S DOOR) GRID - HEATING ELEMENT VOLT HOT AT ALL TIMES HTD MIR FUSE HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SER DATA LOGIC LOGIC DRIVER DOOR SWITCH PANEL CONTROL MODULE LOGIC PASSENGER DOOR SWITCH PANEL CONTROL MODULE LOW REF LOW SPEED GMLAN SER DATA LT GRN WIRE NCA WIRE ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER OUTSIDE REARVIEW MIRROR (ON FRONT PASSENGER'S DOOR) PASSENGER OUTSIDE REARVIEW MIRROR (W/ MANUAL FOLDING) (ON FRONT PASSENGER'S PASSENGER OUTSIDE REARVIEW MIRROR (W/ POWER FOLDING) (ON FRONT PASSENGER'S DOOR) PDM FUSE PPL REAR DEFOG IND REAR DEFOG SWITCH REAR DEFOGGER REAR DEFOGGER GRID REAR DEFOGGER RELAY REAR DEFOGGER RELAY CTRL REAR DEFOGGER RELAY CTRL REAR DEFOG SWITCH LO SPD GMLAN SER DATA RED/WHT WIRE RR DEFOG FUSE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) W/ MANUAL FOLDING W/ POWER FOLDING WHT WIRE

AMBIENT LIGHT SENSOR AUTOMATIC A/C BLK WIRE BODY CONTROL MODULE (BCM) BRAKE FLUID LEVEL SWITCH CLOCK COLLISION ALERT INDICATORS CONTENT THEFT DETERRENT CONTROL MODULE DATA LINK CONNECTOR (DLC) DRIVER INFORMATION CENTER SWITCH HEAD UP DISPLAY (HUD) HEAD-UP DISPLAY SWITCH HEADLAMP SWITCH HORN SWITCH HVAC CONTROL MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER KEY CAPTURE SOLENOID ACTUATOR LEFT STEERING WHEEL CONTROL SWITCH MANUAL A/C MANUAL A/C AUTOMATIC A/C NCA WIRE PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE MODULE RIGHT STEERING WHEEL CONTROL SWITCH STEERING WHEEL AIRBAG COIL SUNLOAD SENSOR TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE

5 4 GND B+ BCM FUSE BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DOWN WINDOWS) DOWN WINDOWS) (REAR OF DRIVER'S DOOR) DR/LCK FUSE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LATCH ASSEMBLY (W/ EXPRESS UP/ DRIVER DOOR SWITCH PANEL CONTROL MODULE DRIVER DOOR SWITCH PANEL CONTROL MODULE (W/ EXPRESS UP/ DOWN WINDOWS) GRY/BLK WIRE HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) IGN LF DOOR AJAR LOGIC LOW REF LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LATCH ASSEMBLY (W/ EXPRESS UP/ DOWN WINDOWS) (REAR OF FRONT PASSENGER DOOR SWITCH PANEL CONTROL MODULE PASSENGER DOOR SWITCH PANEL CONTROL MODULE (W/ EXPRESS UP/ PASSENGER'S DOOR PDM FUSE PNK/BLK WIRE REARVIEW CAMERA RED WIRE RED/WHT WIRE RF DOOR AJAR RIGHT REAR DOOR LATCH (REAR RIGHT REAR DOOR) SERIAL DATA TAN/WHT WIRE W/ EXPRESS UP/ DOWN WINDOWS YEL WIRE

13 4 MEMORY SW DIMMING LOW REF 2 18 12 11 B+ LED DIMMING SIGNAL 3 2 12 17 INST PANEL LAMP VOLT B+ HEADLAMPS ON HEADLAMPS OFF AUTO BCM FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN/WHT WIRE CLOCK COMPUTER DATA LINES SYSTEM DIMMING SWITCH SIGNAL DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR SWITCH PANEL CONTROL MODULE DRIVER INFORMATION CENTER (DIC) SWITCH DRIVER INFORMATION CENTER (DIC) SWITCH (IF EQUIPPED) DRIVER SEAT MEMORY SWITCH GMC GMC/ CHEVROLET GRY WIRE HAZARD WARNING SWITCH HEAD HEAD UP DISPLAY (HUD) SWITCH HEAD UP DISPLAY (HUD) SWITCH (IF EQUIPPED) HEADLAMP SWITCH HEADLAMPS OFF HEADLAMPS ON HOT AT ALL TIMES HVAC CONTROL MODULE HVAC CONTROL MODULE (W/ FRONT A/C) I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT END OF DASH) INAD/PWR/ LED FUSE INST PANEL LAMP VOLT LED AMBIENT LIGHTNING CONTROL 2 LED DIMMING SIGNAL LEFT INSTRUMENT PANEL ACCENT LAMP LEFT STEERING WHEEL CONTROL SWITCH LOGIC LOGIC DRIVER DOOR SWITCH PANEL CONTROL MODULE LOW REF LOW SPEED GMLAN MEMORY SW DIMMING MIDDLE INSTRUMENT PANEL ACCENT LAMP NCA WIRE OFF ORG/WHT WIRE PARK PARK AUTO PPL PPL BUICK, CHEVROLET GMC PPL GMC PPL LED AMBIENT LIGHTNING CONTROL 2 8 21 INST PANEL LAMP VOLT LED DIMMING SIGNAL PPL/WHT WIRE RADIO RED WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL ACCENT LAMP RIGHT STEERING WHEEL CONTROL SWITCH STEERING WHEEL AIR BAG COIL STR/ WHL/ILLUM FUSE W/ ACCESSORY STEERING WHEEL CONTROL W/O ACCESSORY STEERING WHEEL CONTROL WHT 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

AIR TEMPERATURE DOOR AIR TEMPERATURE DOOR ACTUATOR BLOWER SPEED BLOWER SPEED MODE DOOR CTRL TEMPERATURE DOOR CTRL BRN WIRE COMPUTER DATA LINES SYSTEM DEFROST MODE DEFROST MODE DEFROST/FLOOR MODE FLOOR MODE FLOOR/VENT MODE VENT MODE DEFROST/FLOOR MODE DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE COOLANT TEMPERATURE GAUGE EVAPORATOR TEMPERATURE SENSOR EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) FLOOR MODE FLOOR/VENT MODE GRY WIRE GRY/BLK WIRE HVAC CONTROL MODULE INSTRUMENT CLUSTER LOGIC LOGIC INSTRUMENT CLUSTER LOW REF LT GRN WIRE LT GRN/WHT WIRE MODE ACTUATOR MODE DOOR CTRL MODE MOTOR VOLT MODE MOTOR VOLT TEMPERATURE VOLT LOW REF MODE POS MODE POS RECIRCULATION POS BLOWER SPEED MODE DOOR CTRL ORG/ WIRE PPL RECIRCULATION ACTUATOR RECIRCULATION DOOR A RECIRCULATION DOOR A TEMPERATURE A LOW REF LOW REF RECIRCULATION DOOR CTRL B RECIRCULATION DOOR CTRL B AIR TEMPERATURE DOOR RECIRCULATION POS TAN WIRE TAN/BLK WIRE TEMPERATURE A TEMPERATURE DOOR CTRL TEMPERATURE POS TEMPERATURE POS TEMPERATURE SENS SIG MODE DOOR CTRL TEMPERATURE SENS SIG TEMPERATURE VOLT VENT MODE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BODY CONTROL MODULE (BCM) BODY HEAD CONTROL UP MODULE DISPLAY (BCM) (HUD) (IF EQUIPPED) CENTER CONSOLE ACCESSORY POWER RECEPTACLE CHEVROLET EXCEPT CHEVROLET DAYTIME RUNNING LAMP RELAY DAYTIME RUNNING LAMP RELAY (BUICK) DOOR LOCK RELAY DOOR UNLOCK RELAY DR/LCK FUSE DRIVER DOOR DOOR LOCK UNLATCH RELAY RELAY (W/O EXPRESS UP/DOWN) DRIVER DOOR LOCK SWITCH DRIVER DOOR UNLATCH RELAY DRIVER WINDOW MOTOR DRIVER WINDOW SWITCH DRL FUSE FROM UNDERHOOD FUSE BLOCK (DIAGRAM 1 OF 6) HEAD UP DISPLAY (HUD) HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK INSTRUMENT PANEL ACCESSORY POWER RECEPTACLE LEFT DAYTIME RUNNING LAMP RELAY LEFT DAYTIME RUNNING LAMP RELAY (GMC W/ HID, CHEVROLET) LEFT HEADLAMP LOW BEAM RELAY LEFT HEADLAMP LOW BEAM RELAY (GMC W/O HID) LEFT REAR WINDOW SWITCH LT DRL FUSE LT LO BEAM FUSE MANUAL A/C AUTOMATIC A/C PASSENGER DOOR DRIVER LOCK SWITCH DOOR LOCK SWITCH PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW SWITCH PWR WNDW CIRCUIT BREAKER REAR CONSOLE ACCESSORY POWER RECEPTACLE REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WPR FUSE RED WIRE RIGHT DAYTIME RUNNING LAMP RELAY RIGHT DAYTIME RUNNING LAMP RELAY (GMC W/ HID, CHEVROLET) RIGHT HEADLAMP LOW BEAM RELAY RIGHT HEADLAMP LOW BEAM RELAY (GMC W/O HID) RIGHT REAR WINDOW SWITCH RT DRL FUSE RT LO BEAM FUSE TO HTD/COOL SEAT FUSE (DIAGRAM 2 OF 6) W/ EXPRESS POWER WINDOWS W/ EXPRESS UP/DOWN W/O EXPRESS UP/DOWN WHT WIRE WINDSHIELD WASHER PUMP RELAY