How do I replace rear electronic module on a 2003 s type jaguar?

the wipers are contolled by the gem module generic electronic module. located lh lower a post inside car. the relays are located in th engine bay fuse box the rh side most likeley cause of the problem is corroded wiring behind the front bumper liner between the gem module and the engine bay fuse box common problem

What does it control?

Jaguar in their wisdom did not put an internal release for the Boot (Trunk) inside the car.

assuming the lock system is working :-

You will need to locate IP5 pin 16 on the General Electronic Control Module that sits RH side behind your instrument panel (UK Car) .
IP5 is the large brown 23 way connector that goes into the ECM module.
Take this pin to ground then your boot will pop open.

Check out http://www.bluejag.co.uk for general infomation on Jaguar X type.

Clean the rear sensors and check for water in the trunk. ( around the spare tire . The electronic control module is on the left side . Mine got wet and shut off the senors. I removed it dried it and cleaned it with alcohol and it now works . If it is water get the trunk latch adjusted to seal properly.
Alan

Bulletin from Jaguar :

Electronic Park Brake (EPB)
Re-Calibration Procedure
2003 MY-ON
S-TYPE
M44998-ON

Issue:
On some 2003 MY-on S-TYPE vehicles, a customer may report a concern of premature
parking brake pad wear or the brakes binding. This condition can result if the electronic
park brake (EPB) system is not re-calibrated after the removal of the rear brake callipers
to replace the brake pads.
Action:
Should a customer express concern regarding the above, refer to the calibration
procedure detailed in this bulletin.

1. Reset the EB module:
a. Switch off the ignition.
b. Disconnect the battery for 30 seconds. For additional information, refer to STYPE
Workshop Manual Section 414-01.
c. Reconnect the battery.
2. Start the engine.
3. Firmly apply and release the foot brake five times.
4. Confirm that the message NOT CALIBRATED" or APPLY FOOT AND PARK
BRAKE" is displayed on the instrument cluster message center. This indicates that
the parking brake is in calibration mode.
5. Lightly press the foot brake pedal.
6. Apply the parking brake by using the EB switch.
7. Release the parking brake.
8. Release the foot brake.
9. Confirm that the brake warning lamp is no longer illuminated on the instrument
pack and that the NOT CALIBRATED" message is no longer displayed in the
message center.
10. Apply and release the EPB five times to ensure no error is present.
_____________________________________________________________________________

NB: It is also possible the actuator is bad though.

It could be a bad Transmission Range Sensor, bad starter relay, the Passive Antitheft System, the General Electronic Module, Clutch Switch (Manual Transmission), The Engine Control Module, the Instrument Panel Cluster, or one or more of the several fuses that power the above components.

You will need to locate IP5 pin 16 on the General Electronic Control Module
that sits RH side behind your instrument panel (UK Car) .
IP5 is the large brown 23 way connector that goes into the module.
Take this pin to ground then your boot will pop open.
Check out http://www.bluejag.co.uk for general infomation on Jaguar X type

For Normal driving Jaguar approved tyres:

2.0L 16" Wheel front 35lbf rear 32lbf
17" Wheel front 36lbf rear 34lbf
2.5L 16" Wheel front 38lbf rear 35lbf
17" Wheel front 38lbf rear 35lbf
3.0L 16" Wheel front 38lbf rear 35lbf
17" Wheel front 38lbf rear 35lbf

HI. This is basically a transmission code. The rear box is an electronic gear module, that regulates the shift patterns of the vehicle, during transit. this is a very expensive repair, and it can only be repaired by a certified Jaguar service technician.

The necessary actions will be to have the codes ran at your local jaguar dealership. the codes will give you a better view on the actual fault, and its location, as well.

NOTE_ Depending on the code, there is also a rear fuse box that may be affecting the Transmission control modules functioning abilities. This can occur if the rear fuse box s experiencing a fault.

If you have the numbered codes handy, please post them here. If not, this will be the first action i would recommend to have administered.

Hi

In the trunk, just un clip the light cluster, twist out the bulb, and renew the stop bulb, refit the light cluster.

Good Luck !

John.

A FixYa rating would be appreciated please !