1998 JAGUAR X308 automatic transmission

Automatic Transmission/Transaxle External Controls - 4.0L NA V8 -
AJ27/3.2L NA V8 - AJ26 - Selector Lever Assembly
Disassembly and Assembly

1. Disconnect battery ground cable.
Remove the battery cover.
2. Remove the shift le ver knob, 44.15.06.
3. Remove the J-gate surround, Section 501-05.
4. Remove the console finisher ve neer panel, Section 501-12.
5. Remove the center console assembly, Section 501-12.
6. Remove the indicator module, 44.15.14.

7. Detach the selector cable from the gear shift assembly.
1. Remove the inner cable to selector lever nut.
2. Slacken one outer cable locknut, keeping one positioned for reference on reassembly.

8. Remove the gear shift assembly.
Remove the four fixings.
9. Remove the slide plate.
Remove the four screws.

Automatic Transmission/Transaxle External Controls - 4.0L SC V8 - AJ26 -
External Controls
Description and Operation
Introduction
Operator gearshift control is effected by:
The selector lever Accelerator pedal position Kickdown The mode switch
Operator's Selector Module ('J' Gate)

Automatic Transmission/Transaxle External Controls - 4.0L SC V8 - AJ26 -
External Controls
Diagnosis and Testing
Problem Solving - Transmission Shift
Quick Reference Fault Chart
Special Tool(s)

Digital multimeter

Generic scan tool
SymptomPossible SourcesAction
Shift stuck in P Selector cable seized
*GO to 44.15.08
*
Interlock solenoid not operating
*GO to PDU
*
Interlock latch seized
Transmission faulty
*
*Mechanical check
*
Operator sequence error
*Correct the sequence
*
Vehicle rolls on P Incorrect cable adjustment
*GO 44.15.07
*
Faulty parking pawl (transmission internal)
*Mechanical check
*
R does not engageIncorrect cable adjustment
*GO to 44.15.07
*
Transmission fluid level incorrect
*GO to 44.24.02
*
N not achievedIncorrect cable adjustment
Transmission faulty
*
*GO to 44.15.07
*
D does not engageIncorrect cable adjustment *GO to 44.15.07
*
Transmission fluid level incorrect
*GO to 44.24.02
*
Transmission faulty
*Mechanical check
*
Lower ratios will not holdExcessive engine temperature
DLS fault
*
*GO to PDU
*
Shift lever position not visually correctIncorrect DLS adjustment
*GO to 44.15.07
*
Shift lever has no effect upon the
transmission and resistance cannot be
feltCable disconnected or broken
Transmission selector problem
Shift lever drive pin adrift
*
*
*Mechanical check
*
Shift lever position not align correctly
following manual selection of lower
ratiosSliding block drive pin displaced - following road debris contact
*Mechanical check. Renew the selector if
damaged, or re-align the drive pin and
sliding block
*
Shift lever detent indistinct in 3
causing poor locationDLS detent fault
*GO to Renew the DLS
*
Shift may be moved from P without
brake pedal operationInterlock latch fault
*Mechanical check
*
Solenoid permanently activated
*GO to PDU
*
Engine may be started in positions
other than P or N Incorrect cable adjustment
DLS fault
*
*GO to 44.15.07
*
Shift lever vibrationLoose selector assembly
Cable isolation fault
*
*Mechanical check
*
Noise / rattle from 'J' gateDebris in the mechanism
*Clean
*
Worn 'J' gate track gasket
allowing lever and moulding to
contact
*GO to 44.15.05
*

Automatic Transmission/Transaxle External Contro ls - 4.0L SC V8 - AJ26 -
Brake Shift Interlock Actuator Manual Override
General Procedures



1. To override the gearshift interlock:
1. Unscrew the release catch blanking plug.
2. Insert the ignition key into the aperture, depress the release catch and simultan eously move the gear
selector lever from the Park position. The lever will
only move approximately 25 mm with the key
inserted.
3. Remove the ignition key and replace the blanking plug.

Automatic Transmission/Transax
le External Controls
- 4.0L SC V8 - AJ26 -

Kickdown Switch Adjustment
Gen
eral Procedures
1. Ensure that the throttle cable is correctly adjusted; refer to
Operation 19.20.06.
2. Refer to the PDU User Guide for relevant software - 1040.
3. With PDU connected, running and the message 'EXISTING
COMPONENTS TO BE TESTED YES / NO' displayed:
Select YES.
Select ENTER.

Fol

low the messages given on the screen.
4. Press ENTER on the PDU screen.

5. F
ollowing the PDU instructions:
Push the throttl

e pedal until li
ght contact is made with the
kickdown switch and hold in this position.
Pres
s ENTER on the display.
No

te the percentage throttle op
en data (displayed as a bar
graph).
• NOTE: Ensure that contact with the switch does not
result in movement of the switch.
R
elease the throttle pedal.
6. If the target 90% throttle open specification is NOT achieved
the switch must be ad justed as follows.

7. Di
sconnect the kickdown switch multiplug.
Move the car

pet for access.

8. Adjust
the kickdown switch to th
e value as defined in step 6.
R
otate the switch in th
e required direction.


9.
Veri
fy the setting.
10. With the PDU instructions completed, connect the kickdown
switch multiplug.

Automatic Transmission/Transaxle External Contro ls - 4.0L SC V8 - AJ26 -
Selector Lever Cable Adjustment
General Procedures

1.
Disconnect the vehicle battery ground lead.
2. Position the gear sele ctor lever to N.
3. Remove the J-gate surround, Section 501-05.
4. Remove the console finisher ve neer panel, Section 501-12.
5. Remove the center console assembly, Section 501-12.

6. Slacken the selector cable lock ing nuts and screw them away
from the abutment.
7. Raise the vehicle for access.

8. Verify that the transmis sion selector lever is at position ( N ).
At the transmission, detach the inner cable from the
selector lever.
With the lever moved fully rearward, push the lever
forward two detents to achieve N.
1. Reconnect the inner cable.

9. NOTE: When setting the selector cable, ensure that the
transmission selector does no t move from the (N) position.
Adjust the selector cable from inside the vehicle. 1. Position the gear select or lever to the N detent.
2. Adjust the nuts to lock against the bracket without moving the set position of either the gear selector
lever or the select or lever on the transmission case.
3. Tighten to specification.
4. Verify the ( N ) setting.
10. Further installation is the reve rse of the removal procedure.

Automatic Transmission/Transaxle External Contro ls - 4.0L SC V8 - AJ26 -
Brake Shift Interlock Actuator
Removal and Installation
Removal
Installation

1.
Disconnect the vehicle battery ground lead.
2. Remove the J-gate surround, Section 501-05.
3. Remove the console finisher ve neer panel, Section 501-12.

4. Remove the interlock so lenoid lever cover.

5. Remove the gearshift interlock solenoid.
1. Remove the (2) solenoid nuts.
2. Detach the solenoid from the latch pin.
3. Disconnect the solenoid multiplug.
1. Installation is th e reverse of the re moval procedure.

2. Refer to the illustration.

Automatic Transmission/Transaxle External Contro ls - 4.0L SC V8 - AJ26 -
Kickdown Switch
Removal and Installation
Removal
Installation



1. Disconnect the kickdown switch multiplug.
Move the carpet for access.

2. Remove the kickdown switch.
Rotate counter-clockwise.
1. Installation is th e reverse of the re moval procedure.
2. The kickdown switch MUST be adjusted in accordance with
(44.15.38).