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Home >> Jaguar >> 2004 >> XJ8 Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Servicing >> Descriptions & Operation >> Transmission Control Module (TCM) & Main Control Valve Body >> Transmission Electronic System >> Solenoid Supply Monitoring
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Solenoid Supply Monitoring

While the solenoid operating transistors are being activated, checks are run for open circuits, shorts circuits to ground and short circuits to supply. The monitoring function evaluates the voltage characteristics during the switch on process checking for the above faults.

All solenoid outputs are fully protected. The processor and the appropriate fail-safe action taken can quickly identify open and short circuit faults.