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GMC Suburban C1500 (1985-1999) brn Wiring diagrams

This page contains all the electrical diagrams for the component. brn, in which he is found in the car GMC Suburban C1500 (1985-1999). You can view various wiring diagrams where this component is used, as well as go to more detailed diagrams to see the complete connection and interaction in the system. All diagrams have links to quickly jump to the corresponding section with the component for easy viewing..

brn wiring diagram (111 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (111 of 129)

A/C COMP FUSE A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY (IN UNDERHOOD FUSE-RELAY CENTER) A/C COMPRESSOR CYCLING SWITCH A/C CONTROL A/C DISABLE A/C HIGH PRESSURE CUTOUT SWITCH (ON A/C COMPRESSOR) A/C LOW PRESSURE CUTOUT SWITCH A/C REQ A/C SWITCH BLK WIRE BLK/ WHT WIRE BLOWER SWITCH BRN WIRE DIODE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE BLOCK HOT IN RUN HVAC CONTROL MODULE HTR A/C FUSE 12 HOT IN RUN OR START IGNITION LO OFF LT GRN WIRE ORG/ WIRE PNK WIRE SW SIG UNDERHOOD FUSE-RELAY CENTER IGN E FUSE VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) WHT WIRE

Go to component -> 5.7l (vin r), compressor circuit -> BRN WIRE

brn wiring diagram (112 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (112 of 129)

A/C COMP FUSE A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY (IN UNDERHOOD FUSE/RELAY CENTER) A/C COMPRESSOR CYCLING SWITCH A/C CONTROL A/C DISABLE A/C ENABLE A/C HIGH PRESSURE CUTOUT SWITCH (ON A/C COMPRESSOR) A/C LOW PRESSURE CUTOUT SWITCH A/C SWITCH BLK WIRE BLOWER SWITCH BRN WIRE DIODE DK GRN WIRE DK GRN/WHT WIRE FUSE BLOCK HOT IN RUN HVAC CONTROL MODULE HTR A/C FUSE 12 HOT IN RUN OR START IGNITION LO OFF LT GRN WIRE ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) RECIRC SIGNAL RECIRCULATION DOOR MOTOR (ON A/C- HEATER HOUSING) UNDERHOOD FUSE BLOCK IGN 1 FUSE WHT WIRE

Go to component -> 6.5l (vin f), compressor circuit -> BRN WIRE

brn wiring diagram (113 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (113 of 129)

1 2 3 4 5 6 7 8 9 10 ILLUMINATION GROUND A/C DISABLE RECIRC SIGNAL IGNITION A/C COMP FUSE A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY (IN UNDERHOOD FUSE CENTER) A/C COMPRESSOR CYCLING SWITCH (IN LOW PRESSURE LINE, ON ACCUMULATOR) A/C CTRL A/C ENABLE A/C HIGH PRESSURE CUTOUT SWITCH (ON A/C COMPRESSOR) A/C LOW PRESSURE CUTOUT SWITCH (ON A/C COMPRESSOR) AIR TEMP DR SIGNAL MODE SIGNAL A/C SWITCH BATTERY IGNITION GROUND DEFOGGER ELEMENT BLK WIRE BLOWER FUSE 3 BLOWER MOTOR BLOWER RESISTOR (UNDER RIGHT SIDE OF DASH, ON HEATER HOUSING) BLOWER SWITCH BRN WIRE DIODE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRONT MODE DOOR MOTOR (ON FRONT A/C-HEATER HOUSING) FRONT TEMPERATURE DOOR MOTOR (ON FRONT A/C-HEATER HOUSING) FUSE BLOCK GRY WIRE HEATER AND A/C CONTROL MODULE HIGH BLOWER RELAY (UNDER DASH ON TOP OF HEATER-A/C HOUSING) HOT AT ALL TIMES UNDERHOOD FUSE BLOCK HOT IN RUN HOT IN RUN OR START HTR A/C FUSE 12 IGN E FUSE LT BLU WIRE LT GRN WIRE OFF LO ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) PPL REAR DEFOGGER SYSTEM RECIRCULATION DOOR MOTOR (UNDER DASH ON HEATER- A/C HOUSING) RED WIRE TAN WIRE WHT WIRE YEL WIRE

Go to component -> 6.5l vin f, manual a/c circuit -> BRN WIRE

brn wiring diagram (114 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (114 of 129)

1 2 3 4 5 6 7 8 9 10 ILLUMINATION GROUND A/C DISABLE RECIRC CTRL IGNITION 1995 VFTC A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY (IN UNDERHOOD FUSE/RELAY CENTER) A/C COMPRESSOR CYCLING SWITCH (ON TOP OF ACCUMULATOR) A/C COMPRESSOR HIGH PRESSURE CUTOUT SWITCH (REAR OF THE A/C COMPRESSOR) A/C COMPRESSOR LOW PRESSURE CUTOUT SWITCH (ON TOP OF A/C COMPRESSOR) A/C FUSE AIR TEMP DR SENSOR MODE SIGNAL A/C REQUEST AUX FAN FUSE AUXILIARY COOLING FAN MOTOR AUXILIARY COOLING FAN RELAY (IN UNDERHOOD FUSE/RELAY CENTER) BATTERY IGNITION GROUND DEFOGGER ELEMENT BLK WIRE BLK/WHT WIRE BLOWER FUSE 3 BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER RESISTOR (ON BLOWER MOTOR HOUSING) BLOWER SWITCH OFF LO BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE HIGH BLOWER RELAY (ON TOP OF FRONT A/C- HEATER BLOWER HOUSING) HOT AT ALL TIMES HOT IN RUN HOT IN RUN I/P IGN E FUSE FUSE BLOCK HTR A/C FUSE 12 HVAC CONTROL MODULE LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE PPL REAR DEFOGGER SYSTEM RECIRCULATION DOOR MOTOR (ON FRONT A/C-HEATER HOUSING) RED WIRE RELAY CONTROL SWITCH SIGNAL TAN WIRE UNDERHOOD FUSE BLOCK VEHICLE CONTROL MODULE (ON LEFT SIDE OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

Go to component -> 6.5l vin f, manual a/c circuit, auxiliary (1 of 2) -> BRN WIRE

brn wiring diagram (115 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (115 of 129)

BLK WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) DK GRN WIRE ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM EVO SOL FEED EVO SOL OUT EVO/PASSLOCK MODULE (NEAR DASH AUXILIARY STORAGE COMPARTMENT) GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK INSTRUMENT CLUSTER LT BLU WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PASSLOCK SENSOR (IN STEERING COLUMN, NEAR LOCK CYLINDER) PNK PPL WIRE PNK WIRE PPL RED WIRE RED/WHT WIRE RESISTOR 10 OHMS SEC/STRG FUSE 21 SECURITY INDICATOR SENSOR PASSLOCK GRD SIGNAL STEERING HANDWHEEL SPEED SENSOR (SENSOR GROUND) WHT WIRE YEL WIRE

Go to component -> Anti-theft circuit -> BRN WIRE

brn wiring diagram (116 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (116 of 129)

BLK WIRE BRN WIRE CONVENIENCE CENTER FRONT HEATED SEATS FUSE HEATED SEAT SW SIG HIGH/LOW SIG HOT AT ALL TIME HOT IN RUN RR HVAC FUSE 5 I/P FUSE BLOCK INDICATOR LMP FEED LEFT HEATED SEAT MODULE (UNDER LEFT POWER SEAT) LEFT HEATED SEAT SWITCH LT BLU WIRE LT BLU/BLK WIRE OFF OFF LO ORG/ WIRE PNK/BLK WIRE POWER SEAT CIRCUIT PPL RIGHT HEATED SEAT MODULE (UNDER RIGHT POWER SEAT) RIGHT HEATED SEAT SWITCH SEAT BELT SWITCH (ON DRIVER SEAT BELT BUCKLE) SEAT CUSHION ELEMENT SIG ENABLE THERMISTOR UNDERHOOD FUSE/RELAY CENTER YEL WIRE

Go to component -> Heated seats circuit -> BRN WIRE

brn wiring diagram (117 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (117 of 129)

BLK WIRE BRN WIRE GAUGES FUSE 4 GRY WIRE HEADLAMP AMBIENT SENSOR SENSOR (MIRROR (WINDSHIELD SIDE) SIDE) HOT IN RUN OR START I/P FUSE BLOCK (UNDER LEFT SIDE OF DASH) INSIDE AUTOMATIC DAY-NIGHT MIRROR LEFT OUTSIDE AUTOMATIC DAY-NIGHT MIRROR LT GRN WIRE MANUAL TRANSMISSION AUTOMATIC TRANSMISSION MIRROR INPUT MIRRORS SWITCH NCA WIRE OFF C/M PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RIGHT OUTSIDE AUTOMATIC DAY-NIGHT MIRROR T/M TEMPERATURE SENSOR (IN ENGINE COMPARTMENT, NEAR LOWER RADIATOR SUPPORT) TURN B/U FUSE 16

Go to component -> Photochromic mirror circuit -> BRN WIRE

brn wiring diagram (118 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (118 of 129)

A/T AUDIO ALARM MODULE AUTOMATIC AUTOMATIC TRANSFER CASE AUTOMATIC TRANSFER CASE CONTROL MODULE AUX/PWR FUSE 7 AUXILIARY POWER CONNECTOR BLK WIRE BRN WIRE CIG LTR FUSE 13 CIGAR LIGHTER CLUTCH PEDAL POSITION SWITCH COLUMN HARNESS BREAKOUT) CONVENIENCE CENTER CRANK FUSE 8 TRANS FUSE 20 DATA LINK CONNECTOR DOOR LOCK CONTROL MODULE (W/ CARGO DOORS) DOOR RIGHT FRONT LOCK DOOR LOCK RELAY SWITCH ELECTRIC FROM CONVENIENCE CENTER BREAKOUT) FROM UNDERHOOD FUSE-RELAY CENTER (DIAGRAM 1 OF 5) I/P CLUSTER BREAKOUT) I/P FUSE BLOCK IGN A FUSE 6 IGN B FUSE 5 IGNITION SWITCH INSTRUMENT CLUSTER LAMP BREAKOUT) LEFT FRONT RIGHT FRONT DOOR LOCK DOOR LOCK SWITCH SWITCH LEFT POWER LEFT FRONT SEAT DOOR LOCK ADJUSTER SWITCH SWITCH LIFTGATE RELEASE SWITCH LOCK LOCK OFF LOCK OFF OFF M/T MAXI FUSE 7 NCA WIRE ORG/ WIRE PARK/NEUTRAL TRANS- POSITION MISSION SWITCH CONTROLS PICKUP PNK WIRE POWER AMPLIFIER RELAY (SUBURBAN) POWER OUTLET BREAKOUT) POWER REAR WINDOW WINDOW MASTER LOCKOUT SWITCH SWITCH (4-DR) POWER WDO CIRCUIT BREAKER PPL PWR-ACCY CIRCUIT BREAKER RADIO FUSE 17 RADIO RIGHT FRONT POWER WINDOW SWITCH (2 DR, UTILITY) REAR DOOR LOCK SWITCH RED WIRE REMOTE CONTROL DOOR LOCK POWER RECEIVER SEAT LUMBAR SWITCH REMOTE CONTROL DOOR LOCK RECEIVER RIGHT LUMBAR POWER SEAT SWITCH RIGHT POWER SEAT ADJUSTER SWITCH RR WIPER FUSE 23 WIPER FUSE 11 RUN WIRE STARTER RELAY UNDERHOOD FUSE-RELAY CENTER STEERING COLUMN HARNESS BREAKOUT) STOP LAMP SWITCH STOP/HAZ FUSE 1 SUBURBAN ONLY SUBURBAN/ UTILITY T CASE FUSE 2 TO SEATS FUSE (DIAGRAM 4 OF 5) TRANSFER CASE CONTROL MODULE TURN/ HAZARD SWITCH UNDERHOOD FUSE-RELAY CENTER W/BENCH SEAT RIGHT FRONT POWER LUMBAR SEAT SWITCH WHT WIRE WINDSHIELD WIPER MOTOR MODULE YEL WIRE

Go to component -> Power distribution circuit (2 of 5) -> BRN WIRE

brn wiring diagram (119 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (119 of 129)

AUTOMATIC TRANSFER CASE CONTROL MODULE AUTOMATIC TRANSFER CASE SELECT SWITCH AUXILIARY AUXILIARY TEMPERATURE HIGH DOOR BLOWER MOTOR MOTOR RELAY AUXILIARY BATTERY AUXILIARY BATTERY RELAY (LEFT REAR OF ENGINE COMPT) AUXILIARY HEATER AND A/C CONTROL LOGIC MODULE BLK WIRE BLK/RED WIRE BLU WIRE BRAKE FUSE 18 BREAKOUT) BRN WIRE COLUMN HARNESS BREAKOUT) CONVENIENCE CENTER CRUISE CONTROL MODULE (GAS ONLY) CRUISE CONTROL SWITCH CRUISE FUSE 6 EXCEPT DIESEL DIESEL FROM IGNITION SWITCH (DIAGRAM 2 OF 4) FROM UNDERHOOD FUSE-RELAY CENTER (DIAGRAM 1 OF 5) FROM UNDERHOOD FUSE-RELAY CENTER (DIAGRAM 2 OF 5) FRONT AXLE ACTUATOR FRONT HEATED SEATS FUSE FUSE 24 FUSIBLE LINK HEATED MIRROR RELAY HEATER AND A/C CONTROL SWITCH HTR A/C FUSE 12 HVAC CONTROL MODULE I/P FUSE BLOCK LEFT FRONT FENDER) LEFT HEATED SEAT MODULE LEFT HEATED SEAT SWITCH MIRRORS FUSE MODE DOOR MOTOR MOTOR RELAYS) ORG/ WIRE RECIRCULATION TEMPERATURE DOOR DOOR MOTOR MOTOR RESTRAINT SWITCH BREAKOUT) RIGHT HEATED SEAT MODULE RIGHT HEATED SEAT SWITCH RR HVAC FUSE 5 SEATS FUSE STOP ELECTRONIC LAMP BRAKE SWITCH CONTROL MODULE TRANSFER CASE SELECT SWITCH TRANSFER SPARE CASE POWER SELECT SOURCE SWITCH UNDERHOOD FUSE-RELAY CENTER VEHICLE CONTROL MODULE (GASS ONLY) W/ REAR DEFROST W/ W/ LIFT- CARGO GATE DOORS

Go to component -> Power distribution circuit (4 of 5) -> BRN WIRE

brn wiring diagram (120 of 129)

GMC Suburban C1500 (1985-1999) brn wiring diagram (120 of 129)

BLK WIRE BLU WIRE BRN WIRE CTSY FUSE 3 DOWN GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK ILLUM- NATION LAMP LEFT LEFT POWER OUTSIDE REARVIEW MIRROR LEFT/ RIGHT MOTOR LT (OR LT GRN WIRE ORG/ WIRE POWER OUTSIDE REARVIEW MIRROR SWITCH PPL/WHT WIRE RED WIRE RIGHT RIGHT POWER OUTSIDE REARVIEW MIRROR UP/ DOWN MOTOR YEL WIRE

Go to component -> Power mirrors circuit -> BRN WIRE

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