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Home >> Jaguar >> 2020 >> XF Checkered Flag >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Starting System - V6 S/C 3.0L Petrol -- XF/(X260)) >> Starting System - V6 S/C 3.0L Petrol >> Description And Operation >> Starting System - V6 S/C 3.0L Petrol >> Overview

Starting System - V6 S/C 3.0L Petrol : Overview

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The starting system is fitted with a starter motor incorporating a single solenoid, in a system with or without auto stop/start system.

Both types of starting system are passive systems controlled by the Powertrain Control Module (PCM). The PCM initiates starting system operation when a valid smart key is in the vehicle and the engine stop/start switch is pressed.

The PCM controls operation of the starter motor using a starter relay in the Engine Junction Box (EJB) 2.

On vehicles with an auto stop/start system the PCM interacts with other vehicle systems to determine when an auto stop/start operation is required. An auto stop/start warning indicator provides a visual indication of when the engine is stopped in an stop/start cycle. The auto stop/start function is automatically activated each time an ignition cycle occurs. However, if required the driver can deactivate the system using an auto stop/start switch.

Vehicles with an auto stop/start system incorporate a brake vacuum switch to enable the PCM to monitor the pressure in the brake booster during stop/start operation.