Chevrolet Cab & Chassis K2500 (1989-2000) mass airflow sensor Wiring diagrams

A.I.R. SOLENOID CHECK VALVE A/C COM- PRESSOR LOW CUTOUT SWITCH A/C COMPRESSOR CLUTCH AIR INJECTION REACTOR PUMP (7.4L ONLY) AIR PUMP MOTOR APPROX 10 CM FROM TRANSFER CASE RELAY BREAKOUT) BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BRAKE PRESSURE WARNING SWITCH CRUISE EVO CONTROL PASSLOCK MODULE MODULE DATA LINK CONNECTOR DIESEL DK GRN WIRE ELECTROCHROMIC LEFT REARVIEW ILLUMINATED MIRROR VANITY W/ COMPASS MIRROR ELECTRONIC BRAKE CONTROL MODULE EXCEPT UTILITY FRONT AXLE ACTUATOR FRONT AXLE TRANS ACTUATOR RANGE SWITCH FUEL HEATER FUEL PUMP A/C RELAY COMPRESSOR PRESSURE SWITCH FUSE BLOCK GASOLINE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 IGNITION CONTROL MODULE A/C COMPRESSOR CYCLING SWITCH INFLATABLE RESTRAINT FRONT END SENSOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER LOW COOLANT GLOW LEVEL PLUG SENSOR RELAY MASS AIRFLOW SENSOR PARK/ NEUTRAL POSITION SWITCH RIGHT ILLUMINATED VANITY MIRROR ROOF MARKER LAMPS STARTER STOPLAMP RELAY RELAY TRANSFER CASE RELAY TRANSFER CASE SHIFT CONTROL MODULE TRANSFER CASE SHIFT SWITCH UNDERHOOD UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK A/C COMPRESSOR CLUTCH RELAY VEHICLE CONTROL MODULE VEHICLE SPEED SENSOR WATER IN FUEL FILTER WATER VALVE (UTILITY)

4.3L A/C COMPRESSOR CLUTCH A/C COMPRESSOR CYCLING SWITCH A/C HIGH PRESSURE (NOT CUTOUT USED) SWITCH AIR REACTION INJECTION (SECONDARY) WATER PUMP VALVE (7.4L ONLY) BALANCE FUEL FUEL PUMP GAGE BALANCE SENDER MODULE BLK WIRE BLK/WHT WIRE BLOWER MOTOR BRAKE PRESSURE WARNING SWITCH CRUISE INSTRUMENT CONTROL CLUSTER MODULE DATA LINK CONNECTOR DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE EVAPORATIVE EMISSIONS PURGE VACUUM SOLENOID SWITCH EXCEPT 4.3L FRONT AXLE ACTUATOR FRONT MODE DOOR MOTOR FRONT TEMPERATURE DOOR MOTOR FUEL PUMP AND SENDER GASOLINE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HIGH A/C PRESSURE CUTOUT SWITCH HIGH BLOWER MOTOR RELAY IGNITION COIL MODULE MASS AIRFLOW SENSOR PARK/ NEUTRAL POSITION SWITCH POWER STEERING CONTROL MODULE RECIRCULATION DOOR MOTOR STARTER RELAY STOPLAMP RELAY TRANSFER CASE RELAY TRANSFER CASE RELAY BREAKOUT) UNDER- HOOD LAMP UNDERHOOD FUSE- RELAY CENTER A/C COMPRESSOR CLUTCH RELAY UNDERHOOD FUSE-RELAY CENTER VEHICLE CONTROL MODULE VEHICLE UNDER- SPEED HOOD SENSOR REEL (BLUNT CUT) LAMP W/ DUAL TANKS W/O DUAL TANKS (EXCEPT 4.3L) UNDERHOOD FUSE- RELAY CENTER FUEL PUMP RELAY

AUDIO AMPLIFIER AUXILIARY POWER CONNECTOR REAR CONSOLE BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BODY CONTROL MODULE DATA LINK CONNECTOR DIESEL DOOR LOCK INVERSION MODULE EXCEPT PICKUP, EXT. CAB FOUR-WHEEL DRIVE INDICATOR LAMP FRONT TEMPERATURE BLOWER DOOR MOTOR MOTOR FUEL GAUGE SENDER FUEL PUMP RELAY HEADLAMP CONTROL MODULE (LUXURY) INSTRUMENT CLUSTER INTERIOR LAMP CONTROL MODULE LEFT CENTER REAR HIGH POWER MOUNT WINDOW STOP- SWITCH LAMP LEFT FRONT LEFT FRONT POWER DOOR LOCK DOOR SWITCH LOCK SWITCH LEFT POWER LUMBAR SUPPORT MOTOR LEFT POWER RIGHT SEAT SEAT ADJUSTER POWER SWITCH LUMBAR MOTOR LEFT REAR HEATED SEAT SWITCH LEFT REAR LEFT REAR SEAT BELT HEATED SEAT SWITCH ELEMENT LEFT REAR RIGHT REAR HEATED SEAT SEAT BELT MODULE SWITCH LUXURY MASS AIRFLOW SENSOR MODE HIGH DOOR BLOWER MOTOR MOTOR RELAY OF LEFT DOOR HARNESS BREAKOUT) PICKUP ONLY PICKUP/ EXTENDED, CREW ONLY POWER AMPLIFIER RELAY POWER DOOR LOCKS ONLY PICKUP, EXT. CAB POWER WINDOW LEFT MASTER SWITCH FRONT POWER DOOR LOCK SWITCH POWER WINDOW MASTER SWITCH POWERTRAIN CONTROL MODULE REAR WINDOW DEFOGGER GRID (CREW CAB) REAR WINDOW LOCKOUT SWITCH (EXCEPT 2-DR UTILITY) RECIRCULATION DOOR BREAKOUT) RIGHT FRONT POWER LUMBAR RIGHT SUPPORT FRONT MOTOR POWER SEAT ADJUSTER SWITCH RIGHT FRONT POWER SEAT LUMBAR MOTOR RIGHT FRONT SEAT DOOR BELT LOCK SWITCH RELAY RIGHT LEFT FRONT FRONT SEAT POWER WINDOW BELT SWITCH SWITCH RIGHT REAR HEATED SEAT SWITCH RIGHT REAR POWER WINDOW SWITCH SECONDARY FUEL FUEL PUMP GAGE BALANCE SENDER MODULE SECURITY LED TAN/WHT WIRE TRANSFER EVO CASE SHIFT PASSLOCK CONTROL MODULE MODULE UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR BUFFER W/ DUAL TANKS W/ RKE W/O A/C W/ A/C W/O RKE

4.3L ONLY BALANCE FUEL GAGE SENDER BENCH OTHERS SEAT BLK WIRE BLK/WHT WIRE CENTER HIGH MOUNT STOP LAMP CONVENIENCE CENTER CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) DATA LINK CONNECTOR DIESEL DOOR LOCK RELAY ELECTROCHROMIC REARVIEW MIRROR W/ COMPASS FOUR-WHEEL DRIVE INDICATOR LAMP FUEL GAGE SENDER FUEL PUMP AND SENDER FUEL PUMP BALANCE MODULE INSTRUMENT CLUSTER INTERIOR LAMP CONTROL MODULE LEFT CLEARANCE LAMP LEFT FRONT POWER WINDOW LOCK SWITCH LEFT ILLUMINATED VANITY MIRROR LEFT POWER LUMBAR SUPPORT MOTOR LEFT REAR REAR POWER WINDOW WINDOW LOCKOUT SWITCH SWITCH MASS AIRFLOW SENSOR POWER AMPLIFIER POWER AMPLIFIER RELAY POWER FUEL STEERING PUMP CONTROL RELAY MODULE POWER OUTSIDE REARVIEW MIRROR SWITCH POWERTRAIN CONTROL MODULE REMOTE CONTROL DOOR LOCK RECEIVER RIGHT CLEARANCE LAMP RIGHT FRONT POWER WINDOW SWITCH RIGHT ILLUMINATED VANITY MIRROR RIGHT POWER LUMBAR SUPPORT MOTOR RIGHT POWER POWER LEFT POWER LUMBAR MOTOR SEAT RIGHT REAR POWER WINDOW SWITCH ROOF MARKER LAMPS SEAT BELT SWITCH TAN/WHT WIRE TRANSFER CASE MODE SELECTOR ILLUMINATION LAMP UNDER HOOD FUSE-RELAY CENTER VEHICLE SPEED SENSOR BUFFER WHT/ BLK WIRE

5.0L, 5.7L 6.5L 7.4L 7.4L W/ CALIFORNIA EMISSIONS OTHERS A/C CLUTCH RELAY A/C COMPRESSOR CLUTCH RELAY AIR RELAY BALANCE MODULE BREAKOUT) CRANK- SHAFT POSITION SENSOR DIESEL ECM 1 FUSE EGR LINEAR PWM VALVE SOLENOID EGR SOLENOID ENG 1 FUSE ENGINE SHUTOFF SOLENOID FROM EBCM BREAKOUT) FROM SPLICE FUEL FUEL FUEL INJECTOR INJECTOR INJECTOR FUEL FUEL INJECTOR INJECTOR FUEL FUEL PUMP PUMP BALANCE BALANCE MODULE RELAY FUEL HEATER FUEL IGNITION CRANK- INJECTOR CONTROL SHAFT MODULE POSITION SENSOR FUEL INJECTOR FUEL SOLENOID DRIVER GLOW PLUG RELAY IGN E FUSE IGNITION COIL IGNITION CONTROL MODULE MASS AIRFLOW SENSOR PNK (ENG HARN, 26 CM FROM EBCM BREAKOUT) WIRE PNK WIRE POWERTRAIN CONTROL MODULE UNDERHOOD FUSE BLOCK VEHICLE CONTROL MODULE WASTE GATE SOLENOID WATER IN-FUEL SENSOR