Chevrolet Uplander I (2004-2008) class 2 serial data Wiring diagrams

15 44 32 22 CLASS 2 DATA CC SIG SWITCH STOP LAMP VOLT 2 3 UART DATA (PRI) UART DATA (SEC) 27 16 28 39 38 10 VOLT REF BRAKE SEN SIG LOW REF STOP LAMP SPLY CLASS 2 DATA 44 12 PPL VSS LOW SIG VSS HIGH SIG 5 VOLT LOW REFERENCE APP SENSOR 1 SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ON ACCELERATOR BRACKET) BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRAKE PEDAL POSITION SENSOR (ABOVE BRAKE PEDAL ASSEMBLY) BRN WIRE CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA CRUISE IND COMPUTER DATA LINES SYSTEM CRUISE CANCEL CRUISE CONTROL LEVER CRUISE/ SWITCH FUSE 9 DASH, BEHIND ACCESS PANEL) DK BLU WIRE DK GRN WIRE ETC FUSE 18 GROUND UART SERIAL DATA (SEC) STOP LAMP SPLY VOLT GRY WIRE GRY/BLK WIRE HOT IN RUN OR START HOT W/ PWR/ TRN RELAY ENERGIZED I/P FUSE BLOCK IGN INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK IGNITION 1 GROUND UART SERIAL DATA (PRI) WIRE PNK WIRE PPL RADIO VSS REAR OBJECT VSS SENSOR CONTROL MODULE (BEHIND RIGHT REAR INTERIOR BODY PANEL) RES+ SET- TAN WIRE THROTTLE ACTUATOR CONTROL MODULE (TAC) (LEFT SIDE OF INTAKE) UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPARTMENT, ABOVE RIGHT FRONT WHEEL WELL) VSS VSS APP SENSOR 2 SIG LOW REFERENCE 5 VOLT W/ TRAFFIC INFORMATION RECEIVER W/O TRAFFIC INFORMATION RECEIVER WHT/BLK WIRE YEL WIRE

15 29 7 39 CLASS 2 DATA CC SIG SWITCH STOP LAMP VOLT 27 16 28 39 38 10 VOLT REF BRAKE SEN SIG LOW REF STOP LAMP SPLY CLASS 2 DATA BODY CONTROL MODULE (BCM) BRAKE PEDAL POSITION SENSOR (ABOVE BRAKE PEDAL ASSEMBLY) BRN WIRE CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA CRUISE IND COMPUTER DATA LINES SYSTEM CRUISE CANCEL CRUISE CONTROL LEVER CRUISE/ SWITCH FUSE 9 DASH, BEHIND ACCESS PANEL) DK GRN WIRE ENGINE CONTROL MODULE (ECM) GRY WIRE GRY/BLK WIRE HOT IN RUN OR START I/P FUSE BLOCK IGN INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT GRN WIRE NCA WIRE ORG/ WIRE PNK WIRE PPL PPL VSS LOW SIG RADIO VSS REAR OBJECT VSS SENSOR CONTROL MODULE (BEHIND RIGHT REAR INTERIOR BODY PANEL) RES+ SET- STOP LAMP SUPPLY TAN WIRE THROTTLE ACTUATOR CONTROL MODULE (TAC) TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPARTMENT, ABOVE RIGHT FRONT WHEEL WELL) VSS VSS HIGH SIG W/ TRAFFIC INFORMATION RECEIVER W/O TRAFFIC INFORMATION RECEIVER YEL WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN/WHT WIRE CLASS 2 SERIAL DATA DATA LINK CONNECTOR (DLC) (BELOW LEFT SIDE OF DASH, TO LEFT OF STEERING COLUMN) DIGITAL RADIO RECEIVER (BEHIND LEFT SIDE OF DASH) DIGITAL VIDEO DISC (DVD) PLAYER DK BLU WIRE DK GRN WIRE DRIVER MEMORY SEAT MODULE (UNDER DRIVER SEAT) ENGINE CONTROL MODULE (ECM) (3.9L) GMLAN RESISTOR GRY WIRE HI SPD GMLAN SERIAL DATA HOT AT ALL TIMES HVAC CONTROL MODULE (IN DASH CENTER TRIM PANEL, BENEATH RADIO) I/P FUSE BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) INSTRUMENT PANEL CLUSTER (IPC) LEFT DASH ACCESS PANEL) LEFT SLIDING DOOR MODULE (LSDM) (BEHIND LEFT REAR INTERIOR BODY PANEL) LT BLU WIRE LT GRN WIRE MOBILE ENTERTAINMENT PLAYER MODULE NCA WIRE ONSTAR FUSE 6 ORG/ WIRE PPL RADIO RED WIRE RED/WHT WIRE RIGHT SLIDING DOOR MODULE (RSDM) (BEHIND RIGHT REAR INTERIOR BODY PANEL) SPLICE TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) W/ MULTIMEDIA SYSTEM W/ MULTIMEDIA SYSTEM W/O MULTIMEDIA SYSTEM W/ ONSTAR W/ SECOND ROW SIDE AIR BAGS W/ SIDE IMPACT WHT WIRE YEL/BLK WIRE

BLK WIRE BODY CONTROL MODULE (BCM) CLASS 2 DATA CLASS 2 SERIAL DATA DEF INDICATOR CONTROL DEFOGGER REQUEST DEFOGGER SWITCH DK GRN WIRE DRIVER OUTSIDE REARVIEW MIRROR HOT AT ALL TIMES HTD/ MIR FUSE 16 HVAC CONTROL MODULE (IN DASH CENTER TRIM PANEL, BENEATH RADIO) I/P FUSE BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) IGN IGN DEFOGGER INDICATOR LT GRN WIRE MIRROR DEFOGGER NCA WIRE ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR MIRROR DEFOGGER REAR FOG RELAY CONTROL REAR WINDOW DEFOGGER GRID RED WIRE RR DEFOG FUSE 36 RR DEFOG RELAY 30 SPLICE PACK UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPT, ABOVE RIGHT FRONT WHEEL WELL) WHT WIRE

AMBIENT LIGHT SENSOR (IN CENTER OF DASH UPPER TRIM PANEL) B+ CLASS 2 SER DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRL AMB LT SENS SIG FLASH TO PASS SIGNAL FTP GRY WIRE HEAD HEADLAMP SWITCH HEADLAMPS OFF SIGNAL HEADLAMPS ON SIGNAL HI BEAM RELAY HIGH BEAM IND HIGH BEAM RELAY CONTROL HOT AT ALL TIMES LEFT FRONT PARK/TURN SIGNAL LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LF TURN SIG LMP SPLY VOLT LH LO BEAM FUSE 8 LO BEAM RELAY LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW BEAM RELAY CONTROL LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MESSAGE CENTER HEADLAMPS SUGGESTED OFF AUTO PARK PNK WIRE PNK/WHT WIRE PPL PPL DIMMER SWITCH HI BM SIG RF TURN SIG LMP SPLY VOLT RH HI BEAM FUSE 1 RH LO BEAM FUSE 12 LH HI BEAM FUSE 4 RIGHT FRONT PARK/TURN SIGNAL LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTIFUNCTION SWITCH WHT WIRE YEL WIRE

ABOVE DASH COMPT) ABS INDICATOR AIR BAG INDICATOR AMBIENT AIR TEMP SENS SIG BAT POS VOLTAGE BLK WIRE BLK/WHT WIRE BRAKE INDICATOR BRK FLUID LVL SENS SIG BRN/WHT WIRE CHARGING SYSTEM INDICATOR CHIME CLASS 2 SERIAL DATA CLSTR/ HVAC FUSE 8 CRUISE CONTROL ON INDICATOR DIC INFO DN SIG DIC INFO UP SIG DIC MENU SIG DIC SET/RESET SW SIG ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAGE FUEL GAGE GRN WIRE GRY WIRE HIGH BEAM INDICATOR HOT AT ALL TIMES HOT COOLANT INDICATOR I/P FUSE BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) IGN 1 VOLTAGE ILLUMINATION INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN INDICATOR LOGIC LOW FUEL INDICATOR LOW OIL PRESSURE INDICATOR LOW REF LT GRN/BLK WIRE MALFUNCTION INDICATOR MESSAGE CENTER ODO/TRIP ORG/ WIRE PASS SEAT BELT IND PNK 1 2 3 4 5 WIRE PNK WIRE PPL RED WIRE RED/WHT WIRE RIGHT TURN INDICATOR SEAT BELT INDICATOR SECURITY INDICATOR SENS SIG SPEEDOMETER SUPPLEMENTAL RESTRAINTS SYSTEM TACHOMETER TRACTION CONTROL OFF INDICATOR WHT WIRE YEL WIRE

24 60 40 LOW REF OIL PRES SENS SIG 3.5L, 3.9L 43 8 44 9 PPL FUEL LVL SENS SIG LOW REF BLK WIRE BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH (BASE OF OIL PAN) ENGINE OIL PRESSURE (EOP) SENSOR (3.9L) (LOWER LEFT SIDE OF ENGINE BLOCK) FUEL LEVEL SENSOR FUEL PUMP, SENDER ASSEMBLY (IN TOP OF FUEL TANK) GRY WIRE I/P MULTIFUNCTION SWITCH INFO UP INFO DN LT BLU WIRE LT GRN WIRE MENU OIL LVL SW SIG OIL PRES SW SIG ORG/ WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PNK 1 2 3 4 5 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (3.5L) PPL RESET OR ENGLISH/ METRIC TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

3.9L 3.5L 49 57 37 21 48 31 4 7 RLY CTRL SENS SIG 53 54 15 33 50 15 RLY CTRL RLY CTRL CLASS 2 DATA A/C CLTCH FUSE 6 A/C CLTCH RELAY A/C COMPRESSOR CLUTCH A/C OFF FOR ENGINE PROTECTION ENGINE COOLANT HOT AUX FAN SPEED SELECT IGN IGN AUX TEMP SELECT LOGIC AUXILIARY BLOWER MOTOR (W/ REAR A/C) (BEHIND LEFT REAR INTERIOR BODY PANEL) AUXILIARY BLOWER MOTOR CONTROL MODULE (W/ REAR A/C) (IN REAR HVAC MODULE, BEHIND BLK WIRE BRN WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DIGITAL VIDEO DISC (DVD) PLAYER (IF EQUIPPED) DIODE 3 DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROLS SYSTEM FAN 1 FUSE 29 FAN 1 RELAY FAN 2 FUSE 33 FAN 2 RELAY FAN 3 RELAY FAN SPEED SWITCH FUSE 26 GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT W/ IGN MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CLASS 2 SERIAL DATA LEFT COOLING FAN (BEHIND LEFT SIDE OF RADIATOR) LEFT REAR INTERIOR BODY PANEL) LOGIC LOW REF LT BLU WIRE MESSAGE CENTER ORG/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (3.5L) ENGINE CONTROL MODULE (ECM) (3.9L) RED WIRE RIGHT COOLING FAN (BEHIND RIGHT SIDE OF RADIATOR) RR BLWR/ RUN WIRE TEMP SELECT SWITCH UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPT, ABOVE RIGHT FRONT WHEEL WELL) WHT WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER 1 DRIVER 2 DRIVER MEMORY SEAT MODULE (UNDER DRIVER SEAT) DRIVER SEAT ADJUSTER MOTOR ASSEMBLY DRIVER SEAT ADJUSTER SWITCH FRONT UP DRIVER SEAT RECLINE MOTOR (IN DRIVER SEAT BACK) EXIT FRONT DOWN FRONT VERTICAL MOTOR GROUND BATT (HIGH CURRENT) GRY WIRE HORIZONTAL MOTOR HOT AT ALL TIMES PWR SEATS CIRCUIT BREAKER I/P FUSE BLOCK (RIGHT SIDE DASH, BEHIND ACCESS PANEL) LT BLU WIRE LT GRN WIRE MEMORY SEAT SWITCH NCA WIRE ORG/ WIRE PPL REAR DOWN REAR UP FWD REAR VERTICAL MOTOR RECLINE BACK RECLINE FWD BACK RED/WHT WIRE TAN WIRE VOLTAGE REF WHT WIRE WHT/BLK WIRE YEL WIRE

3.5L BATTERY BLK/WHT WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE GPS ANTENNA GROUND HOT AT ALL TIMES I/P FUSE BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) NCA WIRE ORG/ WIRE RADIO RADIO AMP FUSE 4 REAR OBJECT SENSOR CONTROL MODULE (BEHIND RIGHT REAR INTERIOR BODY PANEL) RED WIRE RED/WHT WIRE SUPPORT BEAM, ABOVE BCM) THROTTLE ACTUATOR CONTROL (TAC) MODULE (LEFT SIDE OF INTAKE) UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPT, ABOVE RIGHT FRONT WHEEL WELL) VSS VSS SIG W/ NAVIGATION WHT WIRE