Starting System: Description and Operation

Circuit Operation, Starting System
Putting the Ignition Switch (X134) in position III applies battery voltage to the Starter Solenoid Relay's (K137) terminal 85. With the vehicle in Park or Neutral (Automatic only) and/or the Theft Alarm de-activated, the Starter Solenoid Relay (K137) energizes. Battery voltage is then applied directly to the Starter Solenoid (K136) and the Starter (M134).

On manual transmission vehicles equipped with a theft alarm, the Theft Alarm Unit (Z163) provides a ground circuit to the Starter Solenoid Relay's (K137) 86 terminal.

On automatic transmission vehicles equipped with a theft alarm, the Theft Alarm Unit (Z163) provides a ground circuit to the Starter Solenoid Relay's (K137) 86 terminal via the Park/Neutral Position Switch (X167).

If the theft alarm is activated, the Theft Alarm Unit (Z163) will interrupt the Starter Solenoid Relay's (K137) ground path. The Starter Solenoid Relay (K137) will remain de-energized and prevent starting the engine.

For vehicles not equipped with Theft Alarm, a black wire is used to short pins 10 and 11 of C274.