Chevrolet Avalanche I (2001-2006) low ref Wiring diagrams

1 7 BATT (+) GND BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA ADJUST PDL SENSOR SIG COMPUTER DATA LINES SYSTEM DRIVER BACK HEATED SEAT ELEMENT DRIVER DOOR MODULE DRIVER SEAT RECLINER MOTOR POSITION SENSOR EAP FUSE ELECTRONIC ADJUSTABLE PEDALS ASSEMBLY ELECTRONIC ADJUSTABLE PEDALS RELAY (BEHIND LOWER LEFT OF DASH) ELECTRONIC ADJUSTABLE PEDALS SWITCHES EXIT FRONT PASS- ENGER BACK HEATED SEAT ELEMENT HOT AT ALL TIMES I/P RELAY BLOCK (LEFT OF STEERING COLUMN) LOW REF LT BLU WIRE MEMORY SEAT MODULE (UNDER LEFT FRONT SEAT) MEMORY/ HEATED SEAT SWITCH ORG/ WIRE ORG/BLK WIRE PNK (IN DRIVER SEAT JUMPER HARN) WIRE PNK WIRE PPL RECLINE MTR POS SEN SIG RED WIRE SEAT CIRCUIT BREAKER SET 1 SET 2 TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) AMBIENT AIR TEMPERATURE SENSOR (IN RIGHT FRONT BUMPER FILLER ASSEMBLY AUTO BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FAN DN FAN UP FRT DEF GROUND GROUND TEMP SEN ASS CTRL BLOWER SPEED CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P RELAY BLOCK (LEFT SIDE OF DASH) INSIDE AIR TEMPERATURE SENSOR ASSEMBLY (IN HEADLINER ABOVE DRIVER) INST LAMP DIM CTRL GROUND LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LOWER LEFT AIR TEMPERATURE SENSOR (LEFT END OF HVAC MODULE) LOWER RIGHT AIR TEMPERATURE SENSOR (BOTTOM OF HVAC MODULE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RECIR RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RED WIRE RED/BLK WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT TEMP CONTROL RUN WIRE SPEED CTRL B(+) GROUND TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UPPER LEFT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) UPPER RIGHT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) WHT WIRE WHT/BLK WIRE YEL WIRE

A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON SWITCH A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) BLK WIRE CLASS 2 SER DATA LO PRESS SENS SIG CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE GRY WIRE HOT AT ALL TIMES A/C COMP FUSE HOT IN RUN OR START IGN E FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) LOGIC LOW REF POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) RED WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CARGO LAMP LOW CTRL CTSY LAMP ON SIG CLASS 2 DATA CLASS 2 SERIAL DATA CTSY LAMP CTRL CTSY LAMP POWER CTSY LAMP SUPPLY DK BLU WIRE DK BLU/WHT WIRE DOME LAMP SWITCH DOOR AJAR SIG DRIVER DOOR MODULE (BEHIND LEFT FRONT DOOR TRIM PANEL, NEAR HANDLE) GRY/BLK WIRE HEADLAMP SWITCH INADVERTANT PWR SUPPLY LEFT FRONT DOOR COURTESY LAMP LEFT LIFTGATE AJAR SWITCH RIGHT LIFTGATE AJAR SWITCH LIFTGATE AJAR SIG RR DOOR AJAR SIG LR DOOR AJAR SIG LIFTGLASS AJAR SWITCH LOW REF LR DOOR COURTESY LAMP (2003) LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MINI WEDGE (DRIVER DOOR JAMB SWITCH) MINI WEDGE (LR DOOR JAMB SWITCH) MINI WEDGE (RR DOOR JAMB SWITCH) ORG/ WIRE PNK/BLK WIRE PPL INT LAMP DEFEAT SIG PPL INT LAMP DEFEAT SW RIGHT CARGO DOOR AJAR SWITCH RIGHT CARGO DOOR CONTACT PLATE RR DOOR COURTESY LAMP (2003) SPLICE PACK TAN WIRE W/ CARGO DOORS W/O CARGO DOORS

10 12 PNK WIRE 16 5 PNK WIRE 8 7 PNK WIRE AIR TEMP SENSOR AMBIENT PHOTO SENSOR BACK UP LAMP VOLTAGE OUTPUT BACK UP VOLTAGE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK COMPASS COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR ELECTROCHROMIC MIRROR GROUND GRY WIRE HOT IN RUN, START IGN 1 INSIDE REARVIEW MIRROR LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LOW REF MIR SIGNAL LT GRN WIRE NAVIGATION SYSTEM (PARKING ASSISTANT CIRCUIT) OUTSIDE AIR TEMPERATURE SENSOR PNK WIRE RR LIGHT PHOTO SENSOR SELECTOR SWITCH SERIAL DATA SIR FUSE TEMP UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

22 14 SERIAL DATA BATTERY 7 8 SUPPLY VOLT LOW REF BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR) GROUND HOT AT ALL TIMES HVAC CONTROL MODULE (IN CENTER OF DASH) LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOW REF ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR PDM FUSE R DEF REAR DEFOG SWITCH RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) SERIAL DATA SUPPLY VOLT TAN WIRE WHT WIRE

A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON SWITCH A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL SWITCH BLOWER MOTOR RELAY BLOWER MOTOR RESISTOR ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT DEF GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P RELAY BLOCK (LEFT SIDE OF DASH) INST LAMP DIM CTRL GROUND LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT TEMP CONTROL LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE CONTROL MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF OFF BLOW MT CTRL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RECIRC SWITCH RED WIRE RED/BLK WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT TEMP CONTROL RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE WHT/BLK WIRE YEL WIRE

22 14 1047 4240 COMPUTER DATA LINES SYSTEM 3 2 1 4 PPL 8 7 PNK WIRE BATTERY BATTERY GROUND BLK WIRE BRN WIRE CLASS 2 SERIAL DATA BATTERY COMPUTER DATA LINES SYSTEM DDM FUSE DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DN RIGHT DOWN DRIVER DOOR MODULE (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR EXIT FOLDING/ TELESCOPING MOTOR ELECTRO- CHROMIC FRONT PASSENGER DOOR MODULE (IN PASSENGER'S DOOR) GROUND GRY WIRE HEATING ELEMENT HOT AT ALL TIMES I/P RELAY BLOCK (LEFT OF STEERING COLUMN) LEFT LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT UP VERTICAL HORIZONTAL LOGIC LOGIC LOGIC LOW REF LOW REF ELECTROCHROMIC REF LOW REF VERT POS SIG 5 VOLT REF HORIZ POS SIG LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MEM 2 SW SIG MEM 1 SW SIG BATT (+) MEMORY/ HEATED SEAT SWITCH MIR MTR DWN CTRL MIR MTR COMMON MIR MTR RT CTRL MIR MTR RETRACT CTRL MIR MTR EXTEND CTRL MIRROR SELECT ORG/ WIRE PASSENGER MIRROR POSITION PDM FUSE PNK WIRE PPL PPL/WHT WIRE RED WIRE RIGHT DN RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT MIRROR POSITION RT DOOR CIRCUIT BREAKER SET 1 SET 2 SWITCH PWR TAN WIRE VERT POS SIG 5 VOLT REF HORIZ POS SIG WHT WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HALL A SIG HALL B SIG SENS GND POS 2 SIG 5 VOLT REF B+ VOLT B+ VOLT SERIAL DATA BASE BASE CASE GND GND B+ VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CASE GROUND COMPUTER DATA LINES SYSTEM CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE GRY WIRE HALL A SIG HALL B SIG SENS GND HALL C SIG HALL C SIG RLY VOLT SENS GND POS 1 SIG 5 VOLT REF HOT AT ALL TIMES HOT IN HOT IN RUN LEFT I/P FUSE BLOCK IGN 3 FUSE I/P RELAY BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT CLUSTER SYSTEM LOW REF LT BLU WIRE LT GRN WIRE MEGA FUSE MODE IND CTRL LAT ACCEL SIG ORG/ WIRE PHASE A CTRL PHASE B CTRL PHASE C CTRL PNK PNK WIRE PNK WIRE POS A SIG POS B SIG POWER DISTRIBUTION SYSTEM PPL PULSE SIG REAR WHEEL POSITION SENSOR (LEFT REAR OF VEHICLE) REAR WHEEL STEERING CONTROL MODULE (NEAR SPARE TIRE BRACKET) REAR WHEEL STEERING MODE SELECT SWITCH RED WIRE RLY GND RUN WIRE SENS SIG STEERING GEAR MOTOR ASSEMBLY (NEAR SPARE TIRE BRACKET) STEERING WHEEL SPEED/ POSITION SENSOR (ON STEERING COLUMN) TAN WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE HOLDER VSS IGN 3 VOLT YAW SENS SIG MODE SW SIG WHT WIRE YEL WIRE