Jaguar XJ (X351) V8-5.0L SC Technical Service Bulletin # JTB002122 Date: 120815 A/T Controls - Shifts To Neutral/D Flashing On Selector JTB00212NAS2 15 AUG 2012

 Jaguar XJ (X351) V8-5.0L SC Technical Service Bulletin # JTB002122 Date: 120815
A/T Controls - Shifts To Neutral/D Flashing On Selector
JTB00212NAS2
15 AUG 2012
*ISSUE 2 CHANGES ARE EXTENSIVE AND THEREFORE NOT HIGHLIGHTED*
SECTION: 307-05
Flashing 'D' on Transmission Selector During Low-Speed Driving
AFFECTED VEHICLE RANGE:
CONDITION SUMMARY:
Situation: The transmission may go into neutral without any driver input when driving at low vehicle and engine speeds; a flashing 'D' may be
evident on the transmission selector and 'Gearbox Fault' may be
displayed in the message center with no Diagnostic Trouble Codes (DTC) stored.
Cause: These may be caused by engine off detection calibration.
Action: In the event of a customer concern of the above, refer to the Repair Procedure outlined below to update the Engine Control Module (ECM)
software, Transmission Control Module (TCM) software, or both
the ECM and TCM software. Refer to the table below to determine which control module(s) require updating.
PARTS:
No parts necessary
TOOLS:
IDS with latest IDS-DVD and Calibration File; first available on IDS-DVD129.02 v102; Jaguar-approved Midtronics Vehicle Power Supply
Refer to Workshop Manual for any required special tools
2010 Jaguar XJ (X351) V8-5.0L SC   Page 19
WARRANTY:
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only.
Always refer to DDW to obtain the latest repair time.
DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
UPDATE THE ENGINE CONTROL MODULE AND/OR TRANSMISSION CONTROL MODULE SOFTWARE
CAUTION:
Ensure all ignition 'ON' / ignition 'OFF' requests are carried out; failure to perform these steps may cause damage to control modules in the
vehicle
CAUTION:
A Jaguar-approved Midtronics Vehicle Power Supply must be connected to the vehicle battery during IDS diagnosis / module programming
1. Connect the Jaguar-approved Midtronics Vehicle Power Supply to the vehicle battery.
2. Turn ignition ON (engine not running).
NOTE:
IDS must be loaded with IDS-DVD129.02 v102 or later.
3. Connect the IDS to the vehicle and begin a new Symptom Driven Diagnostics (SDD) session.
4. Follow the on-screen prompts, allowing SDD to read the VIN and identify the vehicle.
5. From the Session Type selection screen, choose 'Diagnosis'.
6. Select the Selected Symptoms tab, and then select one of the following:
^ Powertrain > Automatic transmission and transaxle > Automatic transmission and transaxle symptoms > Gear selector malfunction > Gear
position display flashing or
^ Powertrain > Automatic transmission and transaxle > Automatic transmission and transaxle symptoms > Gear selector malfunction > No
drive in any selected position or
^ Electrical > Instruments > Information and message center > Message display area > Powertrain
7. Select 'continue'.
2010 Jaguar XJ (X351) V8-5.0L SC   Page 20
8. Select the 'Recommendations' tab.
9. From the Recommendations tab, select:
^ 'RUN' to 'Configure existing module - Transmission control module'
^ 'RUN' to 'Configure existing module - Powertrain control module'
^ Follow all on-screen instructions to complete this task.
10. Exit the current session.
11. Disconnect the IDS and the Midtronics Vehicle Power Supply from the vehicle.
Disclaimer