Starting and charging – circuit operation

STARTING AND CHARGING – CIRCUIT OPERATION

CIRCUIT OPERATION

Starting System (MFI-V8) (300 Tdi without EGR) For vehicles equipped with Theft Alarm without Engine Immobilisation: 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 the Theft Alarm de—activated, the Starter Solenoid Relay (K137) energises. Battery voltage is then applied directly to the Starter Solenoid (Ki 36) and the Startor (M134) via the Engine Immobilisation Control Unit (Spider) (2271) shorting plug. On manual transmission vehicles, the Theft Alarm Unit (2163) provides a ground cireut to the Starter Solenoid Relay’s (K137) 86 terminal.

On automatic transmission vehicles, 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 (2163) will interrupt the Starter Solenoid Relay’s (K137) ground path. The Starter Solenoid Relay (K137) will remain de—energised and prevent starting the engine.

For vehicles equipped with Theft Alarm and Engine Immobilisation:

Putting the Ignition Switch (X134) in position Ill applies battery voltage to the Starter Solenoid Relay’s (K137) terminal 85. With the vehicle in Park or Neutral (Automatic only) and the Theft Alarm de—activated, the Starter Solenoid Relay (K137) energises. Battery voltage is then applied to the Engine Immobilisation Control Unit (Spider) (2271). If the Theft Alarm is activated, the Engine Immobilisation Control Unit (Spider) (2271) will interrupt the battery supply to the Starter Solenoid (K136) and the Starter (M134).

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

On automatic transmission vehicles, 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 (2163) will interrupt the Starter Solenoid Relay’s (K137) ground path. The Starter Solenoid Relay (K137) will remain de—energised and prevent starting the engine.

STARTING AND CHARGING B1

For vehicles not equipped with Theft Alarm and Engine Immobilisation:

Putting the Ignition Switch (X134) in position Ill applies battery voltage to the Starter Solenoid Relay’s (K137) terminal 85. With the vehicle in Park or Neutral (Automatic only), the Starter Solenoid Relay (K137) energises. Battery voltage is then applied directly to the Starter Solenoid (K136) and the Starter (M134) via the Engine Immobilisation Control Unit (Spider) (2271) shorting plug. For vehicles not equipped with Theft Alarm, a black wire is used to short pins 10 and 11 of C274. and manual transmission vehicl lbyiod po < rovided directly 1 the Starter ° Solenoid Relay’s (K137) 86 terminal. ol On automatic transmission vehicles, a ground path is provided to the Starter Solenoid Relay’s (K137) 86 terminal via the Park/Neutral Position Switch (X167).

CIRCUIT OPERATION 1