Engine Controls - MIL ON/DTC P0128 Set

No: JTB00229
Issue: 1
Date: 20 JULY 2011

SECTION: 303

Engine MIL Illuminated with DTC P0128 Stored

AFFECTED VEHICLE RANGE:

XK (X100) 4.2L Supercharged only
VIN: A30645-A48684
Model Year: 2004 - 2006

CONDITION SUMMARY:

NOTE:
DTC P0128 may be stored in the ECM after completing J004. Improvements to the diagnostics strategy may identify a fault in the Thermostat operation and in some cases may cause a "false flag" of this DTC in the ECM.

Situation:
On XK vehicles with the 4.2L Supercharged engine only, the engine Malfunction Indicator Lamp (MIL) may be illuminated with Diagnostic Trouble Code (DTC) P0128 stored in the Engine Control Module. This may be caused by the calibration not robust to part-warm restart.

NOTE:
Technicians must follow basic diagnosis for DTC P0128 as per the Workshop Manual. Only after completing this diagnosis, and repair if necessary, should the ECM software be updated.

Action:
In the event of a customer concern of the above, refer to the Repair Procedure outlined below to update the Engine Control Module software.

PARTS:

No parts necessary

TOOLS:

IDS with latest IDS-DVD and Calibration File; first available on IDS-DVDI26_V6.00 Calibration File 75 Jaguar-approved Midtronics Vehicle Power Supply

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.

Normal Warranty policies and procedures apply

REPAIR PROCEDURE

UPDATE THE ENGINE CONTROL MODULE SOFTWARE

CAUTION:
Ensure all ignition ~ON~ I 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 I 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-DVD126_V6.00 or later and Calibration File 75 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:

NOTE:
DTC P0128 must be set to the ECM

^ Electrical > Instruments > Warning lamps > Engine malfunction lamp> Lamp illuminated

7. Select 'continue'.

8. Select the 'Recommendations' tab.

9. From the Recommendations tab, select 'Run' to configure the Engine 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.