Electrical Component Locator: Miscellaneous

MISCELLANEOUS

Component	Component Location
Accessory Junction Block	On rear of left side of firewall.
Battery Junction Block	Left side of firewall.
Central Multi-Port Fuel Injection (SCPI) (7.4L VIN J)	Under the intake plenum.
Data Link Connector (DLC) (4.3L VIN W)	Below dash, near steering column. See Figure.
Data Link Connector (DLC) (5.7L VIN R)	Below dash, near steering column. See Figure.
Data Link Connector (DLC) (6.5L VIN F)	Below dash, near steering column. See Figure.
Data Link Connector (DLC) (7.4L VIN J)	Below dash, near steering column. See Figure.
Fuel Heater (6.5L VIN F)	At fuel filter assembly.
Fuel Pump Test Connector (4.3L VIN W)	Taped to fuel pump relay breakout. See Figure.
Fuel Pump Test Connector (5.7L VIN R)	Taped to fuel pump relay breakout. See Figure.
Fuel Pump Test Connector (7.4L VIN J)	Taped to fuel pump relay breakout. See Figure.
Fuel Pump Test Connector (6.5L VIN F)	Left side of engine compartment. See Figure.
Fuel Solenoid Driver (6.5L VIN F)	On top left of engine. See Figure.
Fuel/Water Separator (Filter) (6.5L VIN F)	Rear of intake manifold.
Glow Plugs (6.5L VIN F)	On cylinder heads, below valve covers.
Ignition Coil (4.3L VIN W)	Top right rear of engine. See Figure.
Ignition Coil (5.7L VIN R)	Top right rear of engine. See Figure.
Ignition Coil (7.4L VIN J)	On bracket at rear of intake plenum. See Figure.
P/B Booster Fluid Flow & Pressure Alarm (School Bus)	Brake warning system harness, taped to dash harness at breakout to dash fuse block & headlamps switch.
Remote Battery Access Terminal Block	Rear of right radiator core support panel.
Seat Belt & Headlamps Alarm	At bottom of dash fuse block.
Tachometer (provision for)	Engine harness, taped to ignition coil breakout.
Throttle Body Fuel Injector	On top of intake manifold.
Vehicle Speed Sensor (VSS) Buffer	On driver's island support, above accelerator pedal.