Chevrolet Cruze I facelift (2012-2015) computer data lines system Wiring diagrams

24 25 SERIAL DATA(-) SERIAL DATA(+) 29 43 SERIAL DATA(+) SERIAL DATA(-) AUTOMATIC TRANSMISSION ASSEMBLY (A/T) BACKUP LAMP SWITCH BACKUP LP CTRL BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE ENGINE CONTROL MODULE (1.8L: LEFT SIDE OF ENGINE COMPT) FUSE 32 GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR INSIDE REARVIEW MIRROR (IF EQUIPPED) LEFT BACKUP LAMP M/T PARK/NEUTRAL SIG RED WIRE RED/VIO WIRE RIGHT BACKUP LAMP RW SW SIG SERIAL DATA SIG A SIG B SIG C SIG P TRANS- MISSION INTERNAL MODE SWITCH TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRY WIRE YEL WIRE

1 3 13 7 26 B+ B+ BRK APLY SPLY VOL BRK APLY SENS SIG HAZ SW SIG 12 24 HAZ SW LEFT TURN SIG HAZ SW RIGHT TURN SIG 24 25 SERIAL DATA(-) SERIAL DATA(+) 2501 2500 2240 13 5360 1717 COMPUTER DATA LINES SYSTEM 4 22 19 17 B+ HDLP SW PARK LPS SIG LOW REF HAZ SW TURN FLASHER CTRL BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRK APLY SENS SIG BRK APLY SPLY VOL COMPUTER DATA LINES SYSTEM CRUISE/ETC/TLC BRK SIG DK GRN WIRE FUSE 23 FUSE 24 FUSE 3 FUSE 31 FUSE 31 FUSE 32 FUSE 32 FUSE 52 FUSE BLOCK (BEHIND LEFT FUSE 3 END OF DASH) GMLAN GMLAN LO SPD GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BRN WIRE GRY/YEL WIRE HAZ SW LEFT TURN SIG HAZ SW RIGHT TURN SIG HAZ SW SIG HAZ SW TURN FLASHER CTRL HDLP SW PARK LPS SIG HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER INSTRUMENT PANEL INSTRUMENT PANEL FUSE BLOCK LEFT FRONT SIDE MARKER LAMP LEFT PARK LP CTRL LEFT PARK/ TURN SIGNAL LAMP LEFT TURN IND LF TURN SIG LP CTRL LO SPD LOGIC LOW REF LR STOP LP SPLY VOL LR TURN SIG LP CTRL PARK LAMPS IND REAR LICENSE LP CTRL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RF TURN SIG LP CTRL RIGHT FRONT SIDE MARKER LAMP RIGHT PARK LP CTRL RIGHT PARK/ TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT TAIL/ STOP LAMP RIGHT TURN IND RR STOP LP SPLY VOL RR TURN SIG LP CTRL SER DATA SERIAL DATA STOP LP RLY COIL CTRL UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE

5 VOLT REF AUTO BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK PDL POS SENS SIG CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM CRUISE/ETC/ TLC BRK SIG ENGINE CONTROL MODULE (BCM) ENGINE CONTROL MODULE (BCM) (1.8L: LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BRN WIRE GRY/YEL WIRE HAZARD WARNING SWITCH HEAD HEAD PARK HEADLAMP SWITCH LEFT LICENSE PLATE LAMP LEFT REAR SIDE MARKER LAMP LEFT REAR TURN SIGNAL LAMP LEFT TAIL LAMP LEFT TAIL/ STOP LAMP LOW REF M/T A/T OFF PARK REAR COMPARTMENT LID UNLATCH SWITCH) RED WIRE RIGHT LICENSE PLATE LAMP RIGHT TAIL LAMP SERIAL DATA TURN SIGNAL/ MULTI-FUNCTION SWITCH VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE W/ REARVIEW CAMERA W/O REARVIEW CAMERA WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

1 2 RH LOW BEAM CTRL LH LOW BEAM CTRL 13 18 FOG LP RELAY CTRL HI BEAM RELAY CTRL 23 24 10 3 2 HS GMLAN - HS GMLAN + AMBIENT LT SENS SIG B+ 4 11 17 LIGHT CTRL SW REF DIM SW HI BEAM SIG FLASH TO PASS SIG AMBIENT LIGHT/ SUNLOAD SENSOR AMBIENT LIGHT/ SUNLOAD SENSOR (FRONT CENTER OF DASH) AMBIENT LT SENS SIG AUTO BATTERY FUSE BLOCK BATTERY FUSE BLOCK (ENGINE COMPT, BLK WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH) BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE CENTER SPEAKER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIM SW HI BEAM SIG DRL IND FLASH TO PASS SIG FOG LP RELAY CTRL FRONT FOG LAMP IND FRONT FOG LAMP RELAY FRONT FOG LAMP SWITCH FUSE FUSE 24 FUSE 3 FUSE 37 FUSE 38 FUSE 48 FUSE 5 FUSE 52 FUSE 8 FUSE 9 FUSE FUSE GMLAN GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GROUND HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW PRK LP SIG HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP SWITCH HI BEAM RELAY CTRL HIGH BEAM IND HIGH BEAM IND DRL IND HIGH BEAM SW HOT AT ALL TIMES HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK FUSE FUSE (BEHIND LEFT END OF DASH) HOT W/ IGNITION MAIN RELAY ENERGIZED HS GMLAN - IGN INSTRUMENT PANEL FUSE BLOCK LEFT FRONT FOG LAMP LEFT HEADLAMP LH LOW BEAM CTRL LIGHT CTRL SW REF LIGHT CTRL SW SIG LO SPD LO SPD GMLAN LOGIC INSTRUMENT CLUSTER NEXT TO LEFT STRUT TOWER) OFF PARK PARK BRAKE SWITCH PARK BRAKE SWITCH (CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PARK BRK SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RH LOW BEAM CTRL RIGHT FRONT FOG LAMP RIGHT HEADLAMP SER DATA TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK UNDERHOOD FUSE BLOCK VIO/BRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 REVERSE SW SIG 5 VOLT REF AIR VALVE SOLENOID BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK POS SENS SIG 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 BRN/RED WIRE BRN/WHT WIRE CLUTCH APPLY SENS VOLT REF CLUTCH PEDAL POSITION SENSOR COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMP SENS SIG ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 (RIGHT REAR OF ENGINE BLOCK) EVAP CANISTER PUR SOL CTRL FUEL TANK PRESS SENS SIG FUEL TANK PRESS SENS SIG PRIMARY FUEL LVL SENS SIG FUEL TANK PRESSURE SENSOR GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE IGN INSTRUMENT CLUSTER INSTRUMENT CLUSTER DRIVER INFORMATION CENTER DISPLAY INTAKE AIR TEMP SENSOR LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW REF 23 24 LOW REF 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 LOW REF 5 VOLT REF LOW REF LOW REF M/T M/T A/T MAL- FUNCTION IND MANIFOLD ABSOLT PRESS SENS SIG MANIFOLD ABSOLT PRESS SENS SIG ENGINE COOLANT TEMP SENS SIG MANIFOLD ABSOLUTE PRESSURE SENSOR MANIFOLD ABSOLUTE PRESSURE SENSOR (IN INTAKE MANIFOLD) OUTPUT SPD DIGITAL SIG CLH APP SENS SIG OUTPUT SPD DIGITAL SIG CLH APP SENS SIG BRK POS SENS SIG OVERRUN AIR VALVE SOLENOID PRIMARY FUEL LVL SENS SIG REVERSE SW SIG STARTING/CHARGING SYSTEM VEHICLE SPEED SENSOR VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

BATT + BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CTRL 1 CTRL 2 CTRL 3 CTRL 4 F SPLY 1 F SPLY 1 MAIN RLY PWRTN FUEL PRESS SENS SIG FUEL PUMP FUEL PUMP CONTROL MODULE (RIGHT SIDE OF LUGGAGE COMPT) FUEL PUMP CTRL FUEL PUMP RLY CTRL FUEL PUMP, LEVEL SENSOR ASSEMBLY FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK ASSEMBLY) GRN/BLU WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE IGN IGN VOLT LOGIC LOW REF MAIN RLY NCA WIRE PNK/BLK WIRE PWRTN RED/GRY WIRE SERIAL DATA BUS- SERL DATA COMM ENBL SHIELD SHTT ACT SOL CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE W/ ENGINE IMPROVEMENT FUEL ECONOMY WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/BLU WIRE YEL/WHT WIRE

BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CONTROL MODULE (UNDER CENTER DASH) BRK APY BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR EXHAUST CAMSHAFT POSITION SENSOR FUEL PRESSURE SENSOR FUEL PRESSURE SENSOR (FUEL LINE AT RIGHT FRONT OF FUEL TANK) GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HS GM-LAN - INTAKE CAMSHAFT POSITION SENSOR INTAKE CAMSHAFT POSITION SENSOR (RIGHT REAR OF CYLINDER HEAD) KNOCK SENSOR KNOCK SENSOR (LOWER RIGHT SIDE OF ENGINE) NCA WIRE REF SENS LOW SENS SIG SPLY VOLT VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 REVERSE SW SIG 5 VOLT REF AIR VALVE SOLENOID BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK POS SENS SIG 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 BRN/RED WIRE BRN/WHT WIRE CLUTCH APPLY SENS VOLT REF CLUTCH PEDAL POSITION SENSOR COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMP SENS SIG ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 (RIGHT REAR OF ENGINE BLOCK) EVAP CANISTER PUR SOL CTRL FUEL TANK PRESS SENS SIG FUEL TANK PRESS SENS SIG PRIMARY FUEL LVL SENS SIG FUEL TANK PRESSURE SENSOR GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE IGN INSTRUMENT CLUSTER INSTRUMENT CLUSTER DRIVER INFORMATION CENTER DISPLAY INTAKE AIR TEMP SENSOR LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW REF 23 24 LOW REF 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 LOW REF 5 VOLT REF LOW REF LOW REF M/T M/T A/T MAL- FUNCTION IND MANIFOLD ABSOLT PRESS SENS SIG MANIFOLD ABSOLT PRESS SENS SIG ENGINE COOLANT TEMP SENS SIG MANIFOLD ABSOLUTE PRESSURE SENSOR MANIFOLD ABSOLUTE PRESSURE SENSOR (IN INTAKE MANIFOLD) OUTPUT SPD DIGITAL SIG CLH APP SENS SIG OUTPUT SPD DIGITAL SIG CLH APP SENS SIG BRK POS SENS SIG OVERRUN AIR VALVE SOLENOID PRIMARY FUEL LVL SENS SIG REVERSE SW SIG STARTING/CHARGING SYSTEM VEHICLE SPEED SENSOR VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

BATT + BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CTRL 1 CTRL 2 CTRL 3 CTRL 4 F SPLY 1 F SPLY 1 MAIN RLY PWRTN FUEL PRESS SENS SIG FUEL PUMP FUEL PUMP CONTROL MODULE (RIGHT SIDE OF LUGGAGE COMPT) FUEL PUMP CTRL FUEL PUMP RLY CTRL FUEL PUMP, LEVEL SENSOR ASSEMBLY FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK ASSEMBLY) GRN/BLU WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE IGN IGN VOLT LOGIC LOW REF MAIN RLY NCA WIRE PNK/BLK WIRE PWRTN RED/GRY WIRE SERIAL DATA BUS- SERL DATA COMM ENBL SHIELD SHTT ACT SOL CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE W/ ENGINE IMPROVEMENT FUEL ECONOMY WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/BLU WIRE YEL/WHT WIRE

BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CONTROL MODULE (UNDER CENTER DASH) BRK APY BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR EXHAUST CAMSHAFT POSITION SENSOR FUEL PRESSURE SENSOR FUEL PRESSURE SENSOR (FUEL LINE AT RIGHT FRONT OF FUEL TANK) GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HS GM-LAN - INTAKE CAMSHAFT POSITION SENSOR INTAKE CAMSHAFT POSITION SENSOR (RIGHT REAR OF CYLINDER HEAD) KNOCK SENSOR KNOCK SENSOR (LOWER RIGHT SIDE OF ENGINE) NCA WIRE REF SENS LOW SENS SIG SPLY VOLT VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE