Saturn Aura I (2006-2010) low ref Wiring diagrams

2501 2500 400 401 COMPUTER DATA LINES SYSTEM 33 53 2501 2500 COMPUTER DATA LINES SYSTEM HI SPD SER DATA - HI SPD SER DATA + 6 7 41 16 BUS - BUS + HIGH SIG LOW SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ACCELERATOR PEDAL BRACKET) APP SENS 1 SIG LOW REF APP SENS 2 SIG LOW REF PPL AT FRONT, REAR SIDE OF ENGINE) BAT POS VOL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE PEDAL POS SENS SIG BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRN WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH SIGNAL CRUISE INDICATOR CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM FUSE 13 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, BEHIND BATTERY) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROLS LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LOW SPEED SERIAL DATA LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RES+ RUN/CRANK FUSE SET- STOP LAMP SW SIG TAN WIRE TAN/BLK WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEXT TO BATTERY) VEHICLE SPEED SENSOR (VSS) (ON TRANSMISSION) WHT WIRE WHT/BLK WIRE YEL WIRE

20 47 1 41 67 18 21 540 1164 1161 1271 1274 1162 1272 BAT POS VOLT 2501 2500 400 401 COMPUTER DATA LINES SYSTEM 44 43 2501 2500 COMPUTER DATA LINES SYSTEM HI SPD SER DATA - HI SPD SER DATA + 6 7 41 16 BUS - BUS + HIGH SIG LOW SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ACCELERATOR PEDAL BRACKET) APP SENS 1 SIG LOW REF APP SENS 2 SIG LOW REF PPL AT FRONT, REAR SIDE OF ENGINE) BAT POS VOL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE PEDAL POS SENS SIG BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRN WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH SIGNAL CRUISE INDICATOR CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM FUSE 13 ENGINE CONTROL MODULE (ECM) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROLS LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LOW SPEED SERIAL DATA LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RES+ RUN/CRANK FUSE SET- STOP LAMP SW SIG TAN WIRE TAN/BLK WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEXT TO BATTERY) VEHICLE SPEED SENSOR (VSS) (ON TRANSMISSION) WHT WIRE WHT/BLK WIRE YEL WIRE

2501 2500 400 401 COMPUTER DATA LINES SYSTEM 2501 2500 451 17 540 1164 1161 1271 1274 1162 1272 COMPUTER DATA LINES SYSTEM 6 7 41 16 BUS - BUS + HIGH SIG LOW SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ACCELERATOR PEDAL BRACKET) APP SENS 1 SIG LOW REF APP SENS 2 SIG LOW REF PPL AT FRONT, REAR SIDE OF ENGINE) BAT POS VOL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE PEDAL POS SENS SIG BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRN WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH SIGNAL CRUISE INDICATOR CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM FUSE 51 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, FRONT OF BATTERY) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROLS LO SPD GMLAN SER DATA LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL REAR FUSE BLOCK (BEHIND LEFT REAR WHEEL WELL) RED/WHT WIRE RES+ RUN/CRANK FUSE SET- STOP LAMP SW SIG SUNROOF CONTROL MODULE (IF EQUIPPED) (REAR CENTER SUNROOF ASSEMBLY) TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEXT TO BATTERY) VEHICLE SPD SIG VEHICLE SPEED SENSOR (VSS) (ON TRANSMISSION) WHT WIRE WHT/BLK WIRE YEL WIRE

2501 2500 33 53 COMPUTER DATA LINES SYSTEM HI SPD SER BUS- HI SPD SER BUS+ 2501 2500 5 12 COMPUTER DATA LINES SYSTEM HI SPD SER BUS- HI SPD SER BUS+ ACCELERATOR PEDAL POSITION (APP) SENSOR (ACCELERATOR PEDAL BRACKET) APP SENS 1 SIG LOW REF APP SENS 2 SIG LOW REF PPL BAT POS VOL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE PEDAL POS SENS SIG BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRN WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH SIGNAL CRUISE INDICATOR CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM FUSE 13 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, FRONT OF BATTERY) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROLS LEFT STEERING WHEEL CONTROLS LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RES+ RUN/CRANK FUSE SET- STOP LAMP SW SIG SUNROOF CONTROL MODULE (IF EQUIPPED) (REAR CENTER SUNROOF ASSEMBLY) TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEXT TO BATTERY) WHT WIRE WHT/BLK WIRE YEL WIRE

ABS IND. BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE FLUID LEVEL SWITCH (UNDER CENTER BRAKE FLUID RESERVOIR) BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRK FLUID LVL SENS SIG BRN WIRE BRN/WHT WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM DK GRN WIRE GRN WIRE GRY WIRE HIGH SPEED GMLAN SERIAL DATA BUS (+) BPP SENS SIG HIGH SPEED GMLAN SERIAL DATA BUS + HOT AT ALL TIMES LO SPD GMLAN SERIAL DATA LOGIC BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REF LT BLU WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POSITION SIG A REF SIG 2 SIG B VOLT POWER DISTRIBUTION SYSTEM RED WIRE RED/WHT WIRE SENS POSITION STEERING WHEEL SPEED/ POSITION SENSOR (UNDER DASH, AT BASE OF STEERING COLUMN) TAN WIRE TAN/BLK WIRE TRACTION CONTROL IND TRACTION CONTROL SWITCH TRACTION CTRL SW SIG TRACTION OFF IND WHT WIRE YEL WIRE

ABS IND. BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE FLUID LEVEL SWITCH (UNDER CENTER BRAKE FLUID RESERVOIR) BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRK FLUID LVL SENS SIG BRN WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM DK GRN WIRE HIGH SPEED GMLAN SERIAL DATA BUS (+) BPP SENS SIG HIGH SPEED GMLAN SERIAL DATA BUS + HOT AT ALL TIMES LO SPD GMLAN SERIAL DATA LOGIC BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REF ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE WHT WIRE YEL WIRE

ABS IND. BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRAKE FLUID LEVEL SWITCH (UNDER CENTER BRAKE FLUID RESERVOIR) BRAKE PEDAL POSITION SENSOR (RIGHT SIDE BRAKE PEDAL BRACKET) BRK FLUID LVL SENS SIG BRN WIRE BRN/WHT WIRE CLUSTER/ THEFT FUSE COMPUTER DATA LINES SYSTEM DK GRN WIRE GRN WIRE GRY WIRE HIGH SPEED GMLAN SERIAL DATA BUS (+) BPP SENS SIG HIGH SPEED GMLAN SERIAL DATA BUS + HOT AT ALL TIMES LO SPD GMLAN SERIAL DATA LOGIC BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REF PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TRACTION CONTROL IND TRACTION CONTROL SWITCH TRACTION CTRL SW SIG TRACTION OFF IND WHT WIRE YEL WIRE

2.4L (VIN B) 3.5L 3.6L, 2.4L (VIN5) 35 55 22 21 4 58 LOW REF ECT SENS SIG 49 53 33 58 28 27 5 43 44 LOW SPD RLY CTRL HIGH SPD GMLAN HIGH SPD GMLAN 57 37 21 12 34 13 25 65 8 SENS SIG A/C REFRIGERANT PRESSURE SENSOR (ON A/C LINE) AIR TEMPERATURE ACTUATOR (CENTER OF HVAC UNIT) AMBIENT AIR TEMP SENS BELOW COOLANT RESERVOIR) BLK WIRE BLOWER MOTOR BLOWER MOTOR CONTROL MODULE (BOTTOM OF BLOWER MOTOR) BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRN WIRE CLU RLY CTRL COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (DLC) (LOWER LEFT OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR EXCEPT 3.6L 3.6L GRY WIRE GRY/BLK WIRE HIGH SPD RLY CTRL HIGH SPEED GMLAN SERIAL DATA (+) HOT AT ALL TIMES HVAC CTRL (BATT) FUSE HVAC CTRL (IGN) FUSE LOGIC LOW REF LOW REF SIG LOW RLY SPEED CTRL GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA LT BLU WIRE MODE ACTUATOR (ON LEFT OF HVAC UNIT) ORG/ WIRE ORG/BLK WIRE PPL PPL SPLY VOLTAGE SPD CTRL BATTERY POSITIVE REQ SIG GND RECIRCULATION ACTUATOR (TOP RIGHT OF HVAC UNIT) RED/BLK WIRE RED/WHT WIRE RELAY RUN WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

2.4L (VIN B) 3.5L 3.6L, 2.4L (VIN 5) 3.6L BLK WIRE BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) COMPUTER DATA LINES SYSTEM COOL FAN 1 FUSE 17 COOL FAN 2 FUSE 18 COOL/ FAN 1 RELAY 28 COOL/ FAN 2 RELAY 30 COOL/FAN SER/ PAR RELAY 29 DK BLU WIRE DK GRN WIRE ECT SENS SIG EXCEPT 3.5L 3.5L EXCEPT 2.4L (VIN B) 2.4L (VIN B) EXCEPT 3.6L GRY WIRE HIGH SPD RLY CTRL HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) LEFT COOLING FAN (LEFT REAR OF RADIATOR) LOGIC LOW REF LOW SPD DATA LOW SPD RLY CTRL LOW SPD SER DATA LT BLU WIRE ORG/BLK WIRE RIGHT COOLING FAN (RIGHT REAR OF RADIATOR) SER DATA LOW SPD TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEXT TO BATTERY) WHT WIRE YEL WIRE

12 34 13 57 37 21 SENS SIG 2.4L (VIN B) 3.5L 3.6L, 2.4L (VIN 5) 30 49 63 17 53 54 CLU RLY CTRL HIGH SPD RLY CTRL 4 58 22 21 35 55 LOW REF ECT SENS SIG 5 43 44 58 28 27 49 53 33 LOW SPD RLY CTRL HIGH SPD GMLAN HIGH SPD GMLAN A/C REFRIGERANT PRESSURE SENSOR (ON A/C LINE) AFTER LOW HVAC CTRL (IGN) FUSE BLOW RLY SPEED CTRL GMLAN SERIAL DATA GROUND AIR TEMPERATURE ACTUATOR (CENTER OF HVAC UNIT) AMBIENT AIR TEMP A/C SERIAL SENS REQ DATA + BLK WIRE BLOWER MOTOR (RIGHT SIDE OF HVAC UNIT) BODY CONTROL MODULE (BCM) (CENTER CONSOLE, LEFT SIDE NEAR DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (DLC) (LOWER LEFT OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (3.5L: IN CYLINDER HEAD, EXCEPT 3.6L 3.6L GRY WIRE HIGH SPEED GMLAN HIGH SPEED GMLAN SERIAL DATA (+) HOT AT ALL TIMES HVAC BLOWER FUSE HVAC BLOWER HIGH RELAY HVAC CTRL (BATT) FUSE LOGIC LOW REF LOW REF SIG SIG LOW SPEED GMLAN SERIAL DATA LT BLU WIRE LT GRN/BLK WIRE MODE ACTUATOR (ON LEFT OF HVAC UNIT) ORG/ WIRE ORG/BLK WIRE PNK/WHT WIRE PPL RECIRCULATION ACTUATOR (TOP RIGHT OF HVAC UNIT) RED/WHT WIRE RELAY RUN WIRE TAN WIRE TAN/BLK WIRE WHT WIRE YEL WIRE