1998 JAGUAR X308 ECU

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Output Shaft Speed (OSS) Sensor
In-vehicle Repair
Removal

1. Disconnect battery ground cable.
Remove the battery cover.

2. Raise the vehicle on a lift.
2. WARNING: TRANSMISSION FLUID MAY CAUSE
SEVERE BURNS, ENSURE THAT ALL SAFETY PROCEDURES
ARE OBSERVED.
Carefully remove the drain plug and drain the
transmission fluid.

3. Remove the twenty-two bolts which secure the fluid pan.
Remove the fluid pan and all tr aces of gasket material.

4. Remove the output speed sensor.
• NOTE: M6 fixing.
1. Release the screw which secures the output speed sensor bracket and pull the sensor clear.
5. Disconnect the multiplug from the speed sensor.

Installation



1.
NOTE: M6 fixing.
Connect the multiplug, install the output speed sensor and
securing bracket. Tighten the screw to the specified torque
figure.

2. NOTE: Ensure extreme clea nliness and never reuse
transmission fluid.
Using a new gasket, install the fl uid pan and tighten the twenty-
two fixings to the specified. torque figure.
3. Connect the battery and fit the battery cover..
Reset the radio and the clock.
4. Refer to (44.24.02) for fluid fill procedure.

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Shift Solenoids (SS)
In-vehicle Repair
Removal

1. Disconnect battery ground cable.
Remove the battery cover.

2. Raise the vehicle on a lift.
2. WARNING: TRANSMISSION FLUID MAY CAUSE
SEVERE BURNS, ENSURE THAT ALL SAFETY PROCEDURES
ARE OBSERVED.
Carefully remove the drain plug and drain the
transmission fluid.

3. Remove the twenty-two bolts which secure the fluid pan.
Remove the fluid pan and all tr aces of gasket material.

4. Disconnect the eight soleno id / regulator connectors.
5. Remove the RH rear valve body securing screws.

Installation


6. Remove the nine scre ws which secure the solenoid / pressure
regulator retaining plate.

7. Remove the relevant solenoid.

1. Installation is the re verse of the removal procedure, noting the
specific tightening of fixi ngs and related procedures.
Fit the nine screws securing the pressure regulator /
solenoid retaining plate and ti ghten to the specified torque
figure.
2. Refit the RH rear valve body secu ring screws and tighten to the
specified torque figure.

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Transmission Fluid Filter
In-vehicle Repair
Removal
Installation

1.
Raise the vehicle for access.
2. Remove the fluid pan, 44.24.04.

3. Remove and discard the fluid filter.
Remove the two bolts which secure the filter.
Discard the 'O' ring.
Clean the fluid filter mating face.
1. Installation is th e reverse of the re moval procedure.
2. Renew the 'O' ring.

3. Tighten the two bolts to the spec ified torque figure, to secure
the filter .
4. Refill the transmission with flui d. Refer to Operation 44.24.02.

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Transmission Intern al Wiring Harness
In-vehicle Repair
Removal
• NOTE: The temperature sensor is integral with the internal harness.

1. Disconnect battery ground cable.
Remove the battery cover.

2. Raise the vehicle on a lift.
2. WARNING: TRANSMISSION FLUID MAY CAUSE
SEVERE BURNS, ENSURE THAT ALL SAFETY PROCEDURES
ARE OBSERVED.
Carefully remove the drain plug and drain the
transmission fluid.

3. Remove the twenty-two bolts which secure the fluid pan.
Remove the fluid pan and all tr aces of gasket material.
4. Remove the input speed sensor.
• NOTE: M5 fixing. 1. Release the screw which secures the input speed sensor bracket and pull the sensor clear.
Disconnect harness multiplug.

5. Remove the output speed sensor.
• NOTE: M6 fixing. 1. Release the screw which secures the output speed sensor bracket and pull the sensor clear.
Disconnect harness multiplug.

6. Remove the selector cable abutment bracket fixings and
reposition the bracket for access to the multiplug.

7. Disconnect the transmission harness multiplug.
1. Release the harness locking lever.
2. Disconnect the harness multiplug.
8. Remove harness multiplug retaining clip.
Push the multiplug into the transmission casing to release.
Discard the two 'O' rings.

Installation



1. Installation is the reverse of the removal procedure noting
that:
2. Lubricate the new 'O' rings prior to fitting.

3. Tighten the securing bolts, selector cable bracket to
transmission casing, to th e specified torque figure.
4. Connect the battery and fit the battery cover..
Reset the radio and the clock.
5. Refer to (44.24.02) for fluid fill procedure.