GROUND DISTRIBUTION – GMC Forward Control P3500 1999 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram, Commercial Chassis (1 of 2) for GMC Forward Control P3500 1999

List of elements for Ground Distribution Wiring Diagram, Commercial Chassis (1 of 2) for GMC Forward Control P3500 1999:

• (body builder installed)
• (forward lamps harn, 4cm after first horn breakout)
• (i/p harn, 4cm before i/p fuse block breakout)
• (left interior bulkhead, near relay bracket)
• 87a
• A/c compressor clutch
• A/c compressor refrigerant pressure switch
• A/c compressor relay
• Auxilary engine coolant fan motor
• Auxiliary engine coolant fan a/c pressure switch
• Battery
• Braided strap
• Brake/ transmission shift interlock solenoid
• Brake/ transmission shift interlock solenoid relay
• Data link connector
• Daytime running lamps control module
• Daytime running lamps relay
• Diesel
• Electronic brake control module
• Engine block
• Engine coolant level switch
• Fuel level sensor
• Fuel pump (diesel)
• Fuel pump module
• G113 (left front frame rail)
• G114 (rear of left cylinder head)
• G200
• G416 (left rear frame rail)
• Gas
• Gasoline
• Glowplug relay (mechanical)
• High note horn
• I/p dimmer switch
• Left headlamp
• Left park/ turn signal lamp
• Left side marker lamp
• Low note horn
• Park brake indicator switch
• Right headlamp
• Right park/ turn signal lamp
• Right side marker lamp
• S103
• S110 (engine harn, 4cm from brake pressure differential breakout)
• S110 (engine harn, near left bulkhead connector)
• S168 (engine harn, 3.5cm from battery junction block breakout)
• S205
• S401 (rear lamps harn)
• S406 (chassis harn, near breakout to g416)
• Seat belt alarm module
• Secondary battery (diesel only)
• Starter relay
• Steering column

Ground Distribution Wiring Diagram, Commercial Chassis (2 of 2) for GMC Forward Control P3500 1999

List of elements for Ground Distribution Wiring Diagram, Commercial Chassis (2 of 2) for GMC Forward Control P3500 1999:

• (a/t)
• (engine harn, near throttle position sensor)
• (m/t)
• (pcm)
• (vcm)
• 5.7l
• A/c compressor high pressure cut off switch
• A/c compressor high pressure cutoff switch
• A/t
• A/t output speed sensor shield
• Brake pressure differential switch
• Data link connector
• Diesel
• Elec
• Electronic brake control module
• Firewall)
• Fuel heater
• Fuel pump
• Fuel pump relay
• Fuel pump relay (diesel)
• G114 (left rear of engine)
• G117 (left rear of engine)
• G119 (right front of engine)
• Gasoline
• Glowplug controller
• Glowplug controller (california)
• Glowplug controller (federal)
• 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
• Ignition control module
• Instrument cluster
• M/t
• Mass air flow sensor
• Mech
• Nca
• Powertrain control module
• Powertrain/ vehicle control module
• S118 (a/t)(engine harn, near glowplug controller breakout) (m/t)(engine harn, near starter motor breakout)
• S118 (engine harn, left rear of engine)
• S138
• S161 (ebcm harn, 15cm from right wheel speed sensor breakout)
• S218 (i/p harn, 6cm before i/p fuse block breakout)
• Starter relay
• Transmission control module (diesel)
• Vehicle control module
• Vehicle speed sensor calibrator (diesel)
• Vehicle speed sensor shield
• Water in fuel indicator sensor

Ground Distribution Wiring Diagram, Motor Home Chassis (1 of 2) for GMC Forward Control P3500 1999

List of elements for Ground Distribution Wiring Diagram, Motor Home Chassis (1 of 2) for GMC Forward Control P3500 1999:

• (6.5l) (7.4l)
• (body builder installed)
• (fwd lamp harn, near right headlamp breakout)
• (fwd lamp harn, near right headlamp breakout)
• 6.5l
• 7.4l
• A/c compressor high pressure cutoff switch
• A/t output speed sensor shield
• Battery
• Braided strap
• Daytime running lamp relay
• Electronic brake control module
• Engine block
• Fuel heater (6.5l)
• Fuel pump relay
• G111 (near battery)
• G113 (left frame rail)
• G113 (left front frame rail)
• G115 (near ignition coil)
• G117 (rear of right cylinder head)
• Glowplug controller (6.5l california)
• Glowplug controller (6.5l federal)
• Heated oxygen sensor bank 1 sensor 1 (7.4l)
• Heated oxygen sensor bank 1 sensor 2 (7.4l)
• Heated oxygen sensor bank 2 sensor 1 (7.4l)
• Heated oxygen sensor bank 2 sensor 2 (7.4l)
• High note horn
• Ignition control module
• Left headlamp
• Left inner headlamp
• Left outer headlamp
• Low note horn
• Mass air flow sensor
• Park/ neutral position switch relay
• Powertrain control module
• R100 (near a/c compressor clutch)
• Right headlamp
• Right inner headlamp
• Right outer headlamp
• S135 (7.5l: engine harn, near o2 sensor breakout) (6.5: eng harn, near glow plug controller breakout)
• S168 s126 (engine harn, near cruise control module breakout)
• S174
• Secondary battery (diesel only)
• Starter relay
• Stop lamp resistor
• Vehicle control module
• W/ dual headlights
• W/o drl
• W/o dual headlights
• Water in fuel indicator sensor (6.5l)

Ground Distribution Wiring Diagram, Motor Home Chassis (2 of 2) for GMC Forward Control P3500 1999

List of elements for Ground Distribution Wiring Diagram, Motor Home Chassis (2 of 2) for GMC Forward Control P3500 1999:

• (6.5l)
• (7.4l)
• (body builder installed)
• 6.5l diesel
• 7.4l
• 87a
• A/c compressor clutch
• A/c compressor refrigerant pressure switch
• Audio alarm
• Auxiliary engine coolant fan a/c pressure switch
• Auxiliary engine coolant fan motor
• Brake pressure differential switch
• Brake/ trans- mission shift interlock solenoid relay
• Brake/ transmission shift interlock solenoid
• Cruise control module
• Data link connector
• Daytime running lamps control module
• Daytime running lamps relay
• Electronic brake control module
• Engine coolant fan motor
• Engine coolant level switch
• Fuel level sensor
• Fuel lift pump
• Fuel pump module
• G116 (left side of firewall)
• G125 (top of thermostat housing)
• G202 (left side of dash)
• G416 (left rear frame rail)
• Headlamps/ panel dimmer switch
• I/p dimmer switch
• I/p fuse block
• Inline to steering column harness
• Instrument cluster
• Left side marker lamp
• Nca
• Park brake actuator position switch
• Park brake alarm relay
• Park brake pressure valve solenoid
• Park brake pull button relay
• Park brake pump motor
• Park brake pump relay
• Pulse wiper control module
• Right side marker lamp
• S101 (engine harn, 16 cm from breakout for auxiliary coolant fan motor)
• S143 (6.5l: engine harn, near coolant fan motor) (7.4l: engine harn, 5 cm from breakout to cruise control module)
• S150 (engine harn, near breakout to battery junction block)
• S150 (engine harn, near main wiring pass through at firewall)
• S167 (in abs harness)
• S204 (engine harn, near main wiring pass through at firewall)
• S206 (i/p harn, 25cm from breakout to instrument panel)
• S400 (in rear chassis harness)
• Vechile control module (7.4l) powertrain control module (6.5l)
• Vehicle speed sensor calibrator