Chevrolet Impala VIII (1999-2006) brn Wiring diagrams

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRN WIRE DIC/ RKE FUSE DRIVER INFORMATION CENTER EMERGENCY VEHICLE REAR COMPARTMENT LID LAMPS RELAY HOT AT ALL TIMES LEFT EMERGENCY VEHICLE REAR COMPARTMENT LID LAMP LEFT SPOT LAMP LEFT SPOT LMP FUSE NCA WIRE ORG/ WIRE REAR COMPARTMENT LID AJAR SWITCH RED/BLK WIRE RIGHT EMERGENCY VEHICLE REAR COMPARTMENT LID LAMP RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) RIGHT SPOT LAMP RIGHT SPOT LMP FUSE TAN WIRE UNDERHOOD JUNCTION BLOCK (TOP) (ON FRONT OF RIGHT STRUT TOWER) W/ DRIVER INFORMATION DISPLAY CENTER W/ REAR COMPT LID EMERGENCY LAMP PACKAGE YEL WIRE

BEHIND ACCESS PANEL) BLK WIRE BLU WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRAKE SW FUSE BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CRUISE CONTROL SYSTEM ANTI-LOCK BRAKES SYSTEM DK BLU WIRE DK GRN WIRE DK LT FRONT PARK LP FUSE GRY WIRE HAZ SW FUSE HAZARD HAZARD NORMAL HAZARD SIG SW OUT HAZARD SWITCH HEAD HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START ILLUM INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIGHTS LEFT HEADLAMP LEFT I/P JUNCTION BLOCK LEFT I/P JUNCTION BLOCK (LEFT SIDE LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, LEFT LICENSE LAMP RIGHT LICENSE LAMP LEFT TAIL LAMP PARK TURN/ STOP LEFT TURN INDICATOR LOGIC LEFT TURN INPUT LOGIC LT BLU WIRE OF DASH, BEHIND ACCESS PANEL) OFF ORG/ WIRE PANEL) PARK PARK LP RELAY PARK TURN LEFT FRONT PARK/ TURN LAMP PNK WIRE POWER DISTRIBUTION SYSTEM PPL REAR PARK LP FUSE RED WIRE RIGHT HEADLAMP RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) RIGHT TAIL LAMP PARK TURN/ STOP RIGHT TURN INDICATOR RIGHT TURN INPUT STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) TURN PARK RIGHT FRONT PARK/ TURN LAMP TURN SIG SW OUT TURN SIGNAL FUSE TURN SIGNAL/ MULTI- FUNCTION RIGHT SWITCH (IN LEFT STEERING COLUMN) WHT WIRE YEL WIRE

17 18 STOP LMP SIG LR LAMP PWR RR LAMP PWR B/U LMP PWR GROUND ANTI-LOCK BRAKES SYSTEM AUX PWR FUSE BACK-UP LAMPS CIRUIT BACK-UP LAMPS CIRUIT 1750 340 BLK WIRE BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) BLU WIRE BLUNT CUT) BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRAKE SW FUSE BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) RIGHT TAIL LAMP CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK LT EMERGENCY VEHICLE REAR LAMPS FLASHER (UPPER RIGHT FRONT OF REAR COMPARTMENT) FRONT PARK LP FUSE GRN DK WIRE GRY WIRE HAZ SW FUSE HAZARD HAZARD NORMAL HAZARD SIG SW OUT HAZARD SWITCH HEAD HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD JUNCTION BLOCK (TOP) RT I/P 1 FUSE HOT IN RUN OR START ILLUM INDICATOR LEFT TURN INDICATOR RIGHT TURN INPUT INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIGHTS LEFT EMERGENCY VEHICLE REAR WINDOW PANEL LAMP LEFT HEADLAMP LEFT I/P JUNCTION LEFT I/P JUNCTION BLOCK LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LEFT LICENSE LAMP LEFT TAIL LAMP LEFT TURN LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE OFF HEADLAMP SWITCH ORG/ WIRE PANEL) PARK PARK LP RELAY PARK TURN LEFT FRONT PARK/ TURN LAMP PARK TURN/ STOP PNK WIRE PPL REAR PARK LP FUSE RED WIRE RIGHT (IN LEFT STEERING COLUMN) RIGHT EMERGENCY VEHICLE REAR WINDOW PANEL LAMP RIGHT HEADLAMP RIGHT I/P JUNCTION BLOCK RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) RIGHT LICENSE LAMP RIGHT TURN STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) TURN PARK TURN/ STOP RIGHT FRONT PARK/ TURN LAMP TURN SIG SW OUT TURN SIGNAL FUSE TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE YEL WIRE

AC HEADLAMP RELAY AMBIENT LIGHT SENSOR (TOP RIGHT OF DASH, NEAR DEFOGGER OUTLET) BLK WIRE BLK/WHT WIRE BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE DRL RELAY DRL RELAY SERIAL DATA FOG LP RELAY HIGH BEAM IN HEADLAMP RLY DRL/EXT LTS FUSE EXT LTS FUSE FOG LAMP INDICATOR FOG LAMP SWITCH FOG LIGHT RELAY FOG LP SW PARK BRAKE IN GROUND DISTRIBUTION SYSTEM GRY WIRE HEAD HEADLAMP DIMMER SWITCH HEADLAMP SW AL SENS SIG AL SENS REF 1138 1137 HEADLAMP SWITCH HIGH BEAM HIGH BEAM IND HIGH BEAM OUT HOT AT ALL TIMES IPC CLASS 2 SERIAL DATA LEFT FRONT FOG LAMP LEFT HEADLAMP LEFT I/P JUNCTION LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW BEAM LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MESSAGE CENTER OFF ORG/ WIRE PARK PARK BRAKE SWITCH (AT BASE OF PARKING BRAKE ASSEMBLY) PNK PNK WIRE PNK WIRE PPL RIGHT FRONT FOG LAMP RIGHT HEADLAMP LOW BEAM TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD JUNCTION BLOCK (TOP) UNDERHOOD JUNCTION BLOCK (TOP) (ON FRONT OF RIGHT STRUT TOWER) UNDERHOOD JUNCTION BLOCK (TOP) FOG RLY FUSE YEL WIRE YEL/BLK WIRE

AC HEADLAMP RELAY AMBIENT LIGHT SENSOR (TOP RIGHT OF DASH, NEAR DEFOGGER OUTLET) BLK WIRE BLK/WHT WIRE BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) BLUNT CUT WIRE PNK BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE DRL RELAY DRL RELAY SERIAL DATA FOG LP RELAY HIGH BEAM IN HEADLAMP RLY DRL/EXT LTS FUSE EMERGENCY VEHICLE HEADLAMPS FLASHER (FORWARD OF RADIATOR SUPPORT) EXT LTS FUSE FOG LAMP INDICATOR FOG LAMP SWITCH FOG LIGHT RELAY FOG LP SW PARK BRAKE IN FOG RLY FUSE GROUND DISTRIBUTION SYSTEM GRY WIRE HEAD HEADLAMP DIMMER SWITCH HEADLAMP SW AL SENS SIG AL SENS REF 1138 1137 HEADLAMP SWITCH HIGH BEAM HIGH BEAM IND MESSAGE CENTER HIGH BEAM OUT HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SERIAL DATA LEFT FRONT FOG LAMP LEFT HEADLAMP LEFT I/P JUNCTION LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LOGIC LOW BEAM LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF ORG/ WIRE PARK PARK BRAKE SWITCH (AT BASE OF PARKING BRAKE ASSEMBLY) PNK PNK WIRE PNK WIRE PPL RIGHT FRONT FOG LAMP RIGHT HEADLAMP LOW BEAM TURN SIGNAL/ MULTIFUNCTION SWITCH (IN STEERING COLUMN) UNDERHOOD JUNCTION BLOCK (TOP) YEL WIRE YEL/BLK WIRE

3.4L 3.8L A/C-CRUISE FUSE ABS IND. AIR BAG IND AMBIENT AIR TEMPERATURE SENSOR (FRONT OF RADIATOR SUPPORT) AMBIENT TEMP SUNROOF CLOSE SUNROOF SW SUNROOF OPEN BATTERY SERIAL DATA BATTERY BRAKE LVL DATA LINE IGNITION WASH LVL GROUND BLK WIRE BLK/WHT WIRE BOOST GAUGE BRAKE IND BRAKE/ BREAKOUT) BRN WIRE BRN/WHT WIRE CHECK (MALFUNCTION INDICATOR LAMP-MIL) COMPUTER DATA LINES SYSTEM CRUISE IND DASH, BEHIND ACCESS PANEL) DIC/ RKE FUSE DISPLAY DK BLU WIRE DRIVER INFORMATION CENTER (DIC) ENGINE COOLANT TEMPER- ATURE GAUGE ENGINE OIL LEVEL SWITCH (OPEN W/ LOW OIL LEVEL) (3.8L) ENGINE OIL PRESSURE GAUGE FUEL GAUGE FUEL PUMP, SENDER ASSEMBLY FUEL LEVEL SENSOR GND RIGHT TURN INPUT GND LEFT TURN INPUT GRY WIRE HIGH BEAM IND HOT AT ALL TIMES HOT IN HOT IN RUN OR START IGNITION IGNITION GROUND ILLUMINATION (7 BULBS) INSTRUMENT PANEL CLUSTER INTERNAL COMPASS SENSOR (W/O SUNROOF) LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) CLSTR/ BCM FUSE LEFT TURN IND LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MESSAGE CENTER MIL CTRL NCA WIRE ODOMETER/ PRNDL DISPLAY OIL LEVEL SWITCH SIGNAL OIL PRESSURE SWITCH SIGNAL ORG/ WIRE PCM/BCM CLSTR FUSE POWER DISTRIBUTION SYSTEM (PASSENGER COMPT, 10 CM POWER TOPS SYSTEM POWERTRAIN CONTROL MODULE (PCM) PPL PPL FUEL LEVEL SENSOR SIGNAL RED WIRE RESET SWITCH RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) RIGHT TURN IND RUN WIRE SEAT BELT IND SERVICE ENGINE SOON IND SPEEDO- METER TACHO- METER TAN WIRE TAN/BLK WIRE TRAC OFF IND VF DISPLAY DRIVER VOLT- METER W/O POLICE WHT WIRE WIPER/ WASHER SYSTEM (OR 685) EXTERIOR LIGHTS SYSTEM YEL WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRN WIRE FULL BRIGHT GRY WIRE GRY/BLK WIRE HEAD PARK LAMP SWITCH HEADLAMP SWITCH HOT AT ALL TIMES I/P DIMMING SWITCH INT DIM CTRL RELAY CTRL GROUND GROUND GROUND LEFT CRUISE CONTROL (SET/ COAST) LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LEFT RADIO CONTROL (SEEK/ PRESET) LOW DIM LT BLU WIRE NCA WIRE OFF PARK PARK LAMP RELAY PARK LAMP SWITCH INPUT REAR PARK LMP FUSE RED WIRE RIGHT CRUISE CONTROL (RESUME/ ACCEL) RIGHT I/P 1 FUSE RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) RIGHT RADIO CONTROL (VOLUME/ MODE) STEERING COLUMN FUSE STEERING WHEEL) TO HVAC CONTROL MODULE (DIAGRAM 2 OF 2) TO LEFT I/P JUNCTION BLOCK (DIAGRAM 2 OF 2) UNDERHOOD JUNCTION BLOCK (TOP) (ON FRONT OF RIGHT STRUT TOWER) WHT WIRE

1-2 SHIFT SOLENOID VALVE 2-3 SHIFT SOLENOID VALVE A/C REFRIGERANT PRESSURE SENSOR (BELOW ACCUMULATOR) AUTOMATIC TRANSAXLE AUTOMATIC TRANSAXLE FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE INPUT SHAFT SPEED SENSOR AUTOMATIC TRANSAXLE TEMPERATURE SENSOR BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE CRUISE CONTROL MODULE (LEFT STRUT TOWER) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (BELOW COOLANT OUTLET, LEFT REAR OF ENG) GRY (OR GRY/BLK) WIRE GRY WIRE KNOCK SENSOR BANK 1 (LOWER LEFT SIDE OF ENGINE, NEAR STARTER) KNOCK SENSOR BANK 2 (LOWER RIGHT SIDE OF ENGINE) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (ON INTAKE PLENUM) ORG/BLK WIRE PNK 1 2 3 WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE SPLICE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC TCC PULSE WIDTH MODULATION SOLENOID THROTTLE POSITION (TP) SENSOR (ON THROTTLE ASSEMBLY) VEHICLE SPEED SENSOR (RIGHT REAR OF ENGINE COMPT, END OF TRANSAXLE) WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 PPL BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG DEVICES FUSE EVAP CANISTER PURGE SOLENOID (TOP FRONT OF ENGINE) F/PMP RLY FUSE FUEL PUMP AND SENDER ASSEMBLY FUEL TANK PRESSURE SENSOR FUEL PUMP/ LEVEL SENSOR GRY (OR GRY/BLK) WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE MASS AIRFLOW SENSOR (TOP OF THROTTLE BODY) NCA WIRE ORG/ WIRE ORG/BLK WIRE OXY SEN FUSE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/BLK WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) SUPERCHARGER BOOST CONTROL SOLENOID (VIN 1) (RIGHT SIDE OF ENGINE) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDER- HOOD JUNCTION BLOCK (BOTTOM) (RIGHT SIDE OF ENGINE COMPT) UNDERHOOD JUNCTION BLOCK (TOP) (RIGHT SIDE OF ENGINE COMPT) FUEL PUMP RELAY WHT WIRE YEL WIRE YEL/BLK WIRE

625 1724 418 STARTING SYSTEM A/C CLUTCH RLY (PIN 40-41 NOT USED) 42 43 44 45 46 FUEL INJ 3 A/C SYSTEM ABS/ PCM FUSE AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK RLY BOOST SOL TCC PWM SOL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED PPL ENGINE OIL LEVEL SWITCH (ON OIL PAN) ENGINE OIL PRESSURE INDICATOR SWITCH (ABOVE STARTER) EVAP CAN VENT FUEL PUMP RELAY EGR VAL CNTRL MIL CONTROL EVAP CANISTER VENT SOLENOID (LEFT REAR WHEELWELL) EXHAUST GAS RECIRCULATION (EGR) VALVE (TOP RIGHT REAR OF ENGINE) FTP SENS (PIN 36-38 NOT USED) GENERATOR GENERATOR L TERM GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT IN HOT IN ON OR START IAC A HIGH IAC VALVE A LOW PC SOL HIGH PC SOL LOW IDLE AIR CONTROL (IAC) VALVE (ON THROTTLE BODY ASSEMBLY) INSTRUMENT CLUSTER INTAKE AIR TEMPERATURE (IAT) SENSOR (IN AIR INTAKE DUCT) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP OIL LEVEL SW CRUISE STATUS PCM (CRANK) FUSE PCM/BCM CLUSTER FUSE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC RELEASE SW (PIN 64-65 NOT USED) 66 67 68 69 TP SENS TFT SENS FUEL LEVEL SENS PPL (PIN 70-74 NOT USED) 75 76 77 78 79 80 TR SWITCH D OIL PRESS SW TRANS- MISSION INTERNAL MODE SWITCH W/ ABS WHT WIRE YEL WIRE YEL/BLK WIRE