Battery Reset Procedure

Jaguar Owners Club · February 28, 2017

Here's how to carry out the Battery reset procedure - (originally posted by Raistlin in the S Type Forum)

Have radio code to hand BEFORE disconnecting battery.

Restart the clock (where fitted) and set it to the correct time.

Enter your radio code or if you do not have it then follow backdoor code below

The code only works once you have entered the failed code 3 times

Enter any code 3 times so that the display shows "PLEASE WAIT"

Simultaneously press ">>" "PTY" "A.MEM" should only take 2 or 3 seconds and the radio turns on.

You must press the buttons together i.e. at the same time Windows each window

1. NOTE: After the battery has been disconnected it is necessary to initialize each door window motor separately to operate the "one-touch" up function. Operate the window control switch until the door window glass is in the fully closed position, continue to operate the window control switch for a further two seconds.

2. Release the window control switch.

3. Operate the window control switch in the closed position and continue to operate the window control switch for a further two seconds.

4. Operate the window control switch until the door window glass is in the fully open position ("one-touch" down).

5. NOTE: If the door window motor initialization has been completed correctly, when the window control switch is operated, the door window glass should move to the fully closed position ("one-touch" up) automatically.

• NOTE: If the door window glass does not fully close automatically ("onetouch" up), repeat the complete procedure. Operate the window control switch once to the close position.

6. Repeat the door window motor initialization for each door window motor.

EPB reset

1 Switch off ignition.

2 Disconnect battery for 30 seconds reconnect battery (not required if battery changed).

3 Start the engine.

4 Confirm that the message "NOT CALIBRATED" or "APPLY FOOT AND PARK BRAKE" is displayed on the instrument cluster message centre. This indicates the the parking brake is in calibration mode.

5 Lightly press the foot brake.

6 Apply the parking brake by using the EPB 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 "NOT CALIBRATED" message is no longer displayed in the message centre.

10 apply and release the EPB 5 times to ensure no error is present.

Following reconnection of the battery, the engine should be allowed to idle until it has reached normal operating temperature as the stored idle and drive values contained within the ECM have been lost.

Allow the vehicle to idle for a further three minutes.

Drive the vehicle at constant speeds of approximately 48 km/h (30 mph), 64 km/h (40 mph), 80 km/h (50 mph), 96 km/h (60 mph) and 112 km/h (70 mph) for three minutes each.

This may cause a driveability concern if the procedure is not carried out. This will allow the ECM to relearn idle values