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Home >> Jaguar >> 2000 >> XJ8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Servicing) >> Descriptions & Operation >> Transmission Control Module (TCM) >> Emergency Running (electronic Limp-Home Mode)
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Emergency Running (electronic Limp-Home Mode)

WARNING: This page is about a different car, the 2003 Jaguar XJR, 2002 Jaguar XJR, and 2001 Jaguar XJR. However, it is still accessible from the selected car via links, so may be relevant.

The TCM constantly monitors the transmission for faults. In the event of a problem the TCM will adopt the limp-home mode, in which the gear currently held remains engaged, until P is selected. The modulating and shift pressures will increase to maximum and converter lock-up will be inhibited.

Following the selection of "P" , the only ratios available will be 2 (irrespective of forward ratio manual selection) and "R".

With the vehicle at rest, the procedure to manually select is as follows:

  1. Select "P".
  2. Switch OFF the ignition.
  3. Wait 10 seconds.
  4. Start the engine.
  5. Select "R" (reverse will be selected).
  6. Select "D" ( 2 will be selected).

The limp-home mode will be retained until the fault is remedied or the fault code has been erased. Intermittent faults may be cleared by cycling the ignition OFF/ON. In certain cases the component may need to be operated before the fault code is cleared eg. a shift solenoid.