XJ-12 (X300) V12-6.0L (1995)
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Control Module: All Technical Service Bulletins
A/T - MIL ON DTC P1777 TCM Module
08.1-01
DATE
9/95
Sedan Range
MODEL
1995 MY Sedan Range
VIN
720001 - 745840
Transmission Control Module -
DTC P1777 - Updated Module
ISSUE:
Some 1995 MY vehicles equipped with ZF automatic transmissions in the above VIN ranges may experience the following intermittent conditions:
1)
Transmission Malfunction Indicator Lamp (MIL) flashing on and off.
2)
Transmission enters limp home mode. Transmission MIL remains on. Code P1777 is stored in the Engine Control Module and the PDU cannot
communicate with the Transmission Control Module.
ACTION:
If a customer complains of either condition on a 1995 MY vehicle equipped with a ZF automatic transmission, a revised Transmission Control Module is
available as installed in production from VIN 745841.
1.
If the car exhibits condition 1, install the revised TCM.
2.
If the car exhibits condition 2, read out the OBD II DTC(s) using the PDU. If DTC P1777 is found in the Engine Control Module, and the PDU
cannot communicate with the TCM, install the revised TCM.
3.
Record the DTC(s) on the Diagnostic Trouble Code Report form S-93.
TCM LOCATION
The TCM is located under the passenger side underscuttle. Refer to repair operation 44.15.32 in subsection 8.1.3 of the XJ6 - XJ12 Vehicle Service
Manual.
PARTS INFORMATION
DESCRIPTION
PART NUMBER
Transmission Control
LHE 2400AH004
Module, Sedan Range
WARRANTY INFORMATION:
