Chevrolet Impala VIII (1999-2006) serial data Wiring diagrams

AUTOMATIC TRANSAXLE B/U LAMP FUSE BACK-UP LAMPS RELAY BACK-UP LP RLY CTRL BLK WIRE BLK/WHT WIRE DIC/RKE FUSE DK BLU WIRE DK GRN WIRE HOT AT ALL TIMES IMS SIG A IMS SIG B LEFT BACK-UP LAMP LT GRN WIRE MIRRORS SYSTEM POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) RED WIRE RIGHT BACK-UP LAMP RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) SERIAL DATA TRANSAXLE INTERNAL MODE SWITCH WHT WIRE YEL WIRE

AUTOMATIC TRANSAXLE B/U LAMP FUSE B/U LMP PWR BACK-UP LAMPS RELAY BACK-UP LP RLY CTRL BLK WIRE BLK/WHT WIRE DIC/RKE FUSE DK BLU WIRE DK GRN WIRE EMERGENCY VEHICLE REAR LAMPS FLASHER (UPPER RIGHT FRONT OF REAR COMPT) HOT AT ALL TIMES IMS SIG A IMS SIG B LEFT BACK-UP LAMP LT GRN WIRE NCA WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) RED WIRE RIGHT BACK-UP LAMP RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) SERIAL DATA TRANSAXLE INTERNAL MODE SWITCH WHT WIRE YEL WIRE

55 72 64 VEHICLE SPEED OUT DISABLE OUTPUT VSS HIGH A/C-CRUISE FUSE ANTI-LOCK BRAKES SYSTEM BEHIND ACCESS PANEL) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRK SW FUSE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL MODULE (CCM) (ON LEFT STRUT TOWER) CRUISE CONTROL ON/OFF SWITCH CRUISE CONTROL RELEASE SWITCH (BEHIND LEFT SIDE OF DASH, ON BRAKE PEDAL SUPPORT) CRUISE FUSE CRUISE IND DK BLU WIRE DK GRN WIRE ENGAGED INPUT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LEFT STEERING WHEEL CONTROLS LOGIC NCA WIRE ORG/ WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL VSS LOW RESUME/ ACCEL SWITCH RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, RIGHT STEERING WHEEL CONTROLS SERIAL DATA SET/ COAST SWITCH STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) TURN SIGNAL/ MULTIFUNCTION SWITCH (IN STEERING COLUMN) VEHICLE SPEED SENSOR (VSS) (ON RIGHT REAR OF ENGINE COMPT, END OF TRANSAXLE) WHT WIRE YEL WIRE

BLK WIRE BODY CONTROL MODULE (BCM) CLASS 2 SER DATA SERIAL DATA COMPUTER DATA LINES SYSTEM DIC/RKE FUSE GRY WIRE HOT AT ALL TIMES INPUT INSTRUMENT PANEL CLUSTER (IPC) INTERIOR, EXTERIOR LIGHTS SYSTEMS IPC CLASS 2 SERIAL DATA LOGIC LT BLU WIRE LT GRN WIRE MESSAGE CENTER TRUNK OPEN NCA WIRE ORG/ WIRE REAR COMPARTMENT LID AJAR SWITCH REAR COMPARTMENT LID RELEASE ACTUATOR REAR COMPARTMENT LID RELEASE SWITCH RED/BLK WIRE RED/WHT WIRE RELEASE CTRL TRUNK AJAR SW REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (ON UPPER CENTER OF DASH) RIGHT I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) SERIAL DATA WHT WIRE

BATTERY BATTERY IGNITION 1 VOLTAGE HEADLAMP SWITCH SIGNAL GROUND BATTERY CLASS 2 SERIAL DATA GROUND GROUND IGNITION 0 VOLTAGE GROUND BCM FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) CLASS 2 SERIAL DATA CLSTR/ BCM FUSE DATA LINK CONNECTOR DK BLU WIRE DOOR OPEN SWITCH- DRIVER DR LK FUSE DRIVER DOOR LOCK DRIVER DOOR LOCK SWITCH GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ACC, ON OR START HOT IN ON OR START IGNITION KEY ALARM SWITCH (CLOSED W/KEY IN IGNITION SWITCH) IGNITION SWITCH (LEFT SIDE OF DASH) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (BELOW PASSENGER'S SEAT) INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LEFT SEAT BELT SWITCH LEFT SEAT BELT SWITCH (RIGHT SIDE OF DRIVER'S SEAT) LH HTD ST/BCM FUSE LOGIC LOW TIRE PRESSURE DOOR AJAR LT BLU WIRE LT GRN WIRE MESSAGE CENTER NCA WIRE OFF OPEN AJAR ORG/ WIRE PARK BRAKE SWITCH (AT BASE OF PARKING BRAKE ASSEMBLY) PARK HEAD PARK HEAD OFF PARK LAMP SWITCH PCM/BCM CLSTR FUSE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL (DLC) (BELOW LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) RADIO SEAT BELT IND SERIAL DATA STOP FUSE WHT WIRE YEL WIRE