Helpful Information

Along with supplying voltage to the ASD relay contacts, circuit A14 splices to supply voltage to the contact side of the fuel pump relay.

Circuit A142 splices to supply voltage to the fuel injectors, ignition coil, and heated oxygen sensor.

Circuit K4 splices to supply ground for the signals from the following:

- Camshaft position sensor
- Crankshaft position sensor
- Intake air temperature sensor
- Throttle position sensor
- Manifold absolute pressure sensor
- Engine coolant temperature sensor
- Vehicle speed sensor

Circuit Z1 also supplies ground for the 4WD switch, A/C compressor clutch, vehicle speed sensor, speed control, starter relay (manual transmission), and PCM.