Chevrolet Silverado 1500 (2000-2012) brake fluid level switch Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 B+ 5-VOLT REF 12-VOLT REF 12-VOLT REF LR SIG WHEEL SPD SENS 16 17 DATA BUS+ DATA BUS- 2 4 3 1 SERIAL DATA 12-VOLT SERIAL DATA LOW REF 21 22 23 24 25 26 27 12-VOLT REF LF WHEEL SPD SENS SIG 2500 2500 COMPUTER DATA LINES SYSTEM 2500 2501 COMPUTER DATA LINES SYSTEM 35 36 37 38 SERIAL DATA 6032 (OR 817) ABS INDICATOR ABS-1 FUSE 61 ABS-2 FUSE 9 BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE MODULATOR VALVE BRAKE WARNING INDICATOR BRN WIRE CAN BUS HIGH SERIAL DATA GROUND COMPUTER DATA LINES SYSTEM DATA SERIAL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) EXCEPT LUXURY GAS GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) I/P MULTI-FUNCTION SWITCH (W/ ACTIVE BRAKE CONTROL) INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 (GAS) FUSE 43 (DIESEL) LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON LEFT FRONT STEERING KNUCKLE) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR WHEEL SPEED SENSOR (WSS) (ON LEFT REAR BRAKE BACKING PLATE) LF WHEEL SPD SENS SIG LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LUXURY NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PARK BRK SW POWER DISTRIBUTION SYSTEM PPL RADIO RED WIRE RED/BLK WIRE RED/WHT WIRE RF SIG WHEEL SPD SENS RIGHT FRONT WHEEL SPEED SENSOR (WSS) (ON RIGHT FRONT STEERING KNUCKLE) RIGHT REAR WHEEL SPEED SENSOR (WSS) (ON RIGHT REAR BRAKE BACKING PLATE) SENSOR PHASE A 5-VOLT REF BOOSTER VACUUM SENS SIG SERIES) SIG STEERING ANGLE SENS SIG STEERING ANGLE SENSOR STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CONTROL SWITCH TRACTION CTRL SW SIG 12 13 12-VOLT REF PPL BRAKE SW SIG VEH SPD SIGNAL VEHICLE SPD SIG VEHICLE SPD SIG LOW REF GROUND SERIAL DATA BUS- SERIAL DATA BUS- W/ ACTIVE BRAKE CONTROL W/O ACTIVE BRAKE CONTROL WHT WIRE WHT/ BLK WIRE YAW RATE, LATERAL ACCELERATION SENSOR (W/ ACTIVE BRAKE CONTROL) YEL WIRE YEL/BLK WIRE

4.3L A/C AUTOMATIC RECIRCULATING SWITCH A/C COMPRESSOR CLUTCH A/C COMPRESSOR LOW PRESSURE CYCLING SWITCH ALL OTHER GAS AUXILIARY BATTERY RELAY BANK 1 SENSOR 1 BANK 2 SENSOR 1 BANK 1 SENSOR 2 BANK 2 SENSOR 2 BLK WIRE BLK/WHT WIRE BODY WIRING HARNESS JUNCTION BLOCK (UNDER LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH CANADA CRUISE CONTROL MODULE DATA LINK CONNECTOR (DLC) ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE COOLANT LEVEL SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK (LEFT SIDE OF ENG COMPT) ENGINE WIRING HARNESS JUNCTION BLOCK (LEFT SIDE OF ENGINE COMPT) FRONT AXLE ACTUATOR/ SWITCH FUEL PUMP RELAY G110 (4.8L, 5.3L, 6.0L) (LEFT FRONT OF ENGINE) GAS HEADLAMP RELAY HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR IGN 1 RELAY IGNITION COIL MODULE ENGINE OIL LEVEL SWITCH IGNITION COILS (LEFT BANK) IGNITION COILS (RIGHT BANK) INSTRUMENT CLUSTER LEFT BATTERY LEFT DAYTIME RUNNING LAMP (DRL) LEFT FOG LAMP LEFT HORN (LOW) LEFT PARK/ TURN LAMP LOW WASHER SWITCH MASS AIRFLOW (MAF) SENSOR NCA WIRE PARK/ NEUTRAL POSITION SWITCH THROTTLE ACTUATOR CONTROL MODULE RIGHT BATTERY RIGHT DAYTIME RUNNING LAMP (DRL) RIGHT FOG LAMP RIGHT HORN RIGHT PARK/ TURN LAMP SECONDARY AIR INJECTION REACTION SOLENOID STARTER RELAY TRANSFER CASE SWITCH UNDERHOOD LAMP VEHICLE CONTROL MODULE (VCM)/ POWERTRAIN CONTROL MODULE (PCM) VSS SHIELD (4.3L) W/ATC W/O ATC WHT WIRE WINDSHIELD WASHER PUMP WINDSHIELD WIPER MOTOR MODULE

4.3L ENGINE 5.3L FLEX FUEL A/C COMPRESSOR CLUTCH A/C LOW PRESSURE SWITCH AUXILIARY BATTERY RELAY BATTERY (LEFT) BATTERY (RIGHT) BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE DIFFERENTIAL SWITCH COOLANT LEVEL SWITCH DAYTIME PARK/TURN RUNNING SIGNAL LAMP (DRL) LAMP (LEFT) (LEFT FRONT) DAYTIME RUNNING LAMP (DRL) (RIGHT) DIESEL ENGINE CONTROL MODULE EXCEPT 4.3L BASE EXCEPT 4.3L ENGINE F/PMP RELAY FOG LAMP (LEFT) FUEL COMPOSITION SENSOR GAS GAS (LEFT REAR OF ENGINE BLOCK) GAS EXC 4.3L GAS W/AUX BATTERY HIGH BEAM HEADLAMP (LEFT) HIGH BEAM HEADLAMP (RIGHT) HORN (LEFT) HORN (RIGHT) LOW BEAM FOG HEADLAMP LAMP (RIGHT) (RIGHT) IGN 1 RELAY (GAS) IGNITION COIL 2 IGNITION COIL 5 IGNITION COIL 7 IGNITION IGNITION COIL 1 COIL 3 IGNITION IGNITION COIL 6 COIL 4 IGNITION IGNITION CONTROL COIL 8 MODULE LOW BEAM HEADLAMP (LEFT) MOBILE RADIO FUSE BLOCK PARK/ NEUTRAL POSITION SWITCH PARK/TURN SIGNAL LAMP (RIGHT FRONT) POWER TAKEOFF CONNECTOR (BLUNT CUT) THROTTLE ACTUATOR CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPFITTER OPTION W/ DUAL HORNS W/AUX BATTERY W/PTO WASHER FLUID LEVEL SENSOR WHT WIRE WINDSHIELD WASHER FLUID PUMP

5.3L FLEX FUEL A/C COMPRESSOR CLUTCH A/C LOW PRESSURE SWITCH ACTIVE, ELECT SHIFT TRANSFER CASE ACTIVE, MANUAL SHIFT TRANSFER CASE AUXILIARY BATTERY RELAY BATTERY (LEFT) BATTERY (RIGHT) BLK WIRE BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE DIFFERENTIAL SWITCH COOLANT LEVEL SWITCH DAYTIME RUNNING LAMP (DRL) (LEFT) DAYTIME RUNNING LAMP (DRL) (RIGHT) DIESEL ELECTRONIC BRAKE CONTROL MODULE EXCEPT 4.3L BASE F/PMP RELAY FOG LAMP (LEFT) FUEL COMPOSITION SENSOR FUEL PUMP FUEL PUMP, SENDER ASSEMBLY (SECONDARY) GAS GAS (LEFT REAR OF ENGINE BLOCK) GAS EXC 4.3L GAS W/AUX BATTERY HIGH BEAM HEADLAMP (LEFT) HORN (LEFT) HORN (RIGHT) FOG LAMP (RIGHT) IGN 1 RELAY (GAS) INFLATABLE RESTRAINT PASSENGER PRESENSE MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LOW BEAM HEADLAMP (LEFT) LOW BEAM HIGH BEAM HEADLAMP HEADLAMP (RIGHT) (RIGHT) MANUAL SHIFT TRANSFER CASE NCA WIRE PARK/TURN SIGNAL LAMP (LEFT FRONT) PARK/TURN SIGNAL LAMP (RIGHT FRONT) POWER TAKEOFF CONNECTOR (BLUNT CUT) REAR WHEEL STEERING CONTROL MODULE ROOF BEACON RELAY ROOF MOUNTED BEACON (BLUNT CUT) THROTTLE ACTUATOR CONTROL MODULE TRANSFER CASE SHIFT CONTROL SWITCH TRANSFER CASE SHIFT FRONT CONTROL AXLE MOTOR ACTUATOR UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) W/ DUAL HORNS W/AUX BATTERY W/PTO WASHER FLUID LEVEL SENSOR WINDSHIELD WASHER FLUID PUMP

AMBIENT LIGHT SENSOR AMBIENT LIGHT/ SUNLOAD SENSOR AUTOMATIC A/C AUTOMATIC A/C MANUAL A/C 8 3 AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRAKE FLUID LEVEL SWITCH DATA LINK CONNECTOR DRIVER DOOR LATCH DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER DRIVER DOOR DOOR LOCK LATCH SWITCH DRIVER SEAT BACK VENTILATION HEATING, COOLING MODULE DRIVER SEAT CUSHION VENTILATION HEATING, COOLING MODULE DRIVER WINDOW SWITCH EXCEPT HYBRID FRONT DOOR LOCK DIODE FRONT DOOR UNLOCK DIODE HEADLAMP, PANEL I/P DIMMER MULTI-FUNCTION SWITCH SWITCH HVAC CONTROL MODULE HYBRID, W/O NON BUCKET FRONT INDIVIDUAL SEAT INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) MANUAL A/C NCA WIRE PASSENGER DOOR LATCH PASSENGER DOOR LOCK SWITCH PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT BACK VENTILATION HEATING, COOLING MODULE PASSENGER SEAT CUSHION VENTILATION HEATING, COOLING MODULE PASSENGER SEAT LUMBAR SWITCH POWER WINDOW REAR DOOR LOCK DIODE REAR DOOR UNLOCK DIODE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) THEFT DETERRENT MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ FRONT HEATED/ COOLING SEATS W/ NON BUCKET FRONT INDIVIDUAL SEAT W/O W/O NON BUCKET, FRONT INDIVIDUAL SEAT, W/ COMFORT, DECOR LEVEL 3 W/O POWER DOOR LOCK CONTROL W/O POWER W/ POWER DOOR LOCK DOOR LOCK CONTROL CONTROL WHT WIRE WINDSHIELD WIPER (HYBRID) MOTOR A/C COMPRESSOR

4.3L ENGINE A/C COMPRESSOR CLUTCH A/C LOW PRESSURE SWITCH AUXILIARY BATTERY RELAY BATTERY (LEFT) BATTERY (RIGHT) BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE DIFFERENTIAL SWITCH COOLANT LEVEL SWITCH DAYTIME RUNNING LAMP (DRL) (RIGHT) DAYTIME WINDSHIELD RUNNING WASHER LAMP (DRL) FLUID (LEFT) PUMP DIESEL EXCEPT 4.3L BASE EXCEPT 4.3L ENGINE EXCEPT 8.1L 8.1L F/PMP RELAY FOG LAMP (LEFT) GAS GAS EXC 4.3L HIGH BEAM HEADLAMP (LEFT) HIGH BEAM LOW BEAM HEADLAMP HEADLAMP (RIGHT) (RIGHT) HORN (LEFT) HORN (RIGHT) FOG LAMP (RIGHT) IGN 1 RELAY (GAS) IGNITION COIL 8 IGNITION CONTROL MODULE IGNITION IGNITION COIL 1 COIL 3 IGNITION IGNITION COIL 7 COIL 5 IGNITION IGNITION IGNITION COIL 6 COIL 4 COIL 2 LOW BEAM HEADLAMP (LEFT) PARK/TURN SIGNAL LAMP (LEFT FRONT) PARK/TURN SIGNAL LAMP (RIGHT FRONT) POWER TAKE OFF CONNECTOR (BLUNT CUT) STARTER RELAY (DIESEL) THROTTLE ACTUATOR CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPFITTER OPTION W/ DUAL HORNS W/AUX BATTERY W/PTO WASHER FLUID LEVEL SENSOR WHT WIRE

A/C COMPRESSOR CLUTCH A/C LOW PRESSURE SWITCH AUTOMATIC TRANSMISSION AUXILIARY BATTERY RELAY AUXILIARY HEATER PUMP BATTERY (LEFT) BLK WIRE BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE DIFFERENTIAL SWITCH DAYTIME RUNNING LAMP (DRL) (LEFT) WINDSHIELD WASHER FLUID PUMP DAYTIME RUNNING LAMP (DRL) (RIGHT) F/PMP RELAY FOG LAMP (LEFT) FOG LAMP- RIGHT HIGH BEAM HEADLAMP (LEFT) HIGH BEAM HEADLAMP (RIGHT) LOW BEAM HEADLAMP (RIGHT) HORN (LEFT) HORN- RIGHT IGN 1 RELAY IGNITION COIL 1 IGNITION COIL 3 IGNITION COIL 2 IGNITION COIL 6 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 7 IGNITION COIL 8 LOW BEAM HEADLAMP (LEFT) MOBILE RADIO FUSE BLOCK PARK/TURN SIGNAL LAMP (LEFT FRONT) PARK/TURN SIGNAL LAMP (RIGHT FRONT) POWER TAKE OFF CONNECTOR (BLUNT CUT) STARTER/ GENERATOR CONTROL MODULE COOLANT PUMP THROTTLE ACTUATOR CONTROL MODULE TO STARTER/ GENERATOR CONTROL MODULE (DIAGRAM 5 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPFITTER OPTION W/ DUAL HORNS W/AUX BATTERY W/PTO WASHER FLUID LEVEL SENSOR