1998 JAGUAR X308 vin

Range Selection
The 'J' gate selector lever is connected to the transmission via a cable which operates the transmission selector shaft
between positions P R N D only. The shift lever disconnects from the cable when the lever is moved across the gate from D
to 4 .
Movement of the lever between P R N D manu ally controls the flow of transmission fluid, the TCM having control of the
forward gear selected in D .
Movement of the lever to 4 , 3 and 2 positions does not manu ally modify the fluid flow, the TCM detects these positions
using the DLS and controls the ratios electronically by energizing solenoids.
Shift Point Control
The gearshift points are controlled by the TCM, as a function of the output speed, engine load, engine speed, selector
position and shift program selected. The operator has control over the shift points via the shift lever, throttle pedal
movement, kickdown function and mode switch.
Mode Switch
This switch allows operator selection of two base shift modes; Normal and Sport; th e switch being illuminated when Sport is
selected. This function alters the values in the TCM shift point calculations.
Shift Programs
Upon encountering the following conditions, the TCM will auto matically modify the Normal or Sports shift map to enhance
the operation of the vehicle:
1. 1. Traction: When traction intervention is active.
2. 2. Hot mode: Extreme engine/transmission temperatures.
3. 3. Gradient: Under specific speeds and loads.
4. 4. Manual: Driver initiated override of the normal shif t map when the LH side of the 'J gate' is used.
Traction
When traction or stability control (engine or brake system de rived) is operational the TCM will implement the traction map
to maximize control of wheel slip.
Gradient
The gradient function is intended to enhance vehicle drivea bility when climbing a gradient or towing. The TCM will
implement the function when increased driving resistance is de tected, and provides enhanced driveability, additional cooling

Installation


7. Remove the output shaft flange.
1. Using a suitable tool, reli eve the 'staked' portion from
the output shaft keyway.
2. Remove and discard the fl ange nut using a suitable
socket and resisting rotation with special tool 205 -
053.
Check the flange se al diameter for damage and renew if
necessary.

8. Remove and discard the oil seal.
Use a proprietary seal removing tool, taking care NOT to
damage either the shaft or the housing.
1. Installation is the re verse of the removal procedure noting the
following:

2. Fit the oil seal.
1. Lubricate the housing seal bore.
2. Lubricate the outside diameter of the seal.
3. Using seal replacer 307-378 drive the seal squarely into position.
3. Refit the drive flange.
1. Use a new nut. Tighten the flange nut to

Move the selector lever slowly from P to 2 and back,
noting the illumination / positi on relationship as follows: 1
Does state illumination match the lever position in each
direction of travel?
Yes
GO to A4
No GO to A3
No With lever at D (when moving from 2 to P ) is 3 or 4
illuminated?
Yes GO to A3
No GO to A5
No With lever moved from P , to position 4 , is D illuminated?
Yes GO to A4
No GO to A5
A3: CHECK SELECTOR CABLE ADJUSTMENT
Verify and correct as requ ired the selector cable
adjustment 1
OK?
Yes GO to A4
No Correct adjustment error, see 44.15.07 Workshop Manual
307-05A and test the system for normal operation.
A4: CHECK HARNESS SIGNAL CONTINUITY - D TO 4 SWITCH

moving the set position of either the shift lever or the selector lever.
3. Tighten the locknuts to the specified torque figure
4. Verify the N setting.
11. Further installation is the reve rse of the removal procedure.
12. Connect the battery and fit the battery cover.
Reset the radio and the clock.

Selector lever:
Gear selector positions are:
P Transmission mechanically locked, starting available * R Reverse gear N Neutral gear, no power to the rear wheels (starting available) D Drive gear, all 5 forward gears available (see Performance Mode Pushbutton) 4 Upshift to 4th gear only 3 Upshift to 3rd gear only 2 Upshift to 2nd gear only
Gearshift Interlock Manual Override*
The interlock system which locks the sele ctor in P and prevents the ignition key from being removed except when P is
selected, may be manually overridden in the event of an emergency.
1. 1. With the parking brake applied
2. 2. Remove the access blank using a suitable Torx bit
3. 3. Insert a small screwdriver into the vacated hole
4. 4. Push the screwdriver downwards, gently, and hold whilst simultaneously moving the selector from P towards R ,
but do not engage R until the tool has been removed
5. 5. An audible warning may be heard when operation 4 is carried out
6. 6. With the selector in N and the access bl ank replaced, the vehicle may be started
Range Selection
The selector lever transmits operator demand to the transmission and TCM by means of a cable and Dual-Linear
Switch (DLS).
The lever operates the transmission assemb ly selector shaft, only for P R N D , by means of a cable. Movement of the
lever across the gate to 4, 3 and 2 positions disengages th e cable from the selector lever and engages the DLS which
controls gear selection electronically.
Gear selector module:
Provides illumination of the decal relevant to the gear sele cted. This information is provided by CAN from the TCM. Illuminates the security system Active LED on the gear selector surround, in response to an output from the BPM.
Transmission Switches
Performance Mode Pushbutton
7—Connector - Climate control
8—Solenoid - Gear selector
9—Security system Active LED

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
*

Shift Selection and Gear Position
Symptom Chart
Pinpoint test A: P0705
Loose selector disc seal
*
SymptomPossible SourcesAction
DTC P0705 Transmission range sensor circuit
malfunctionSelector cable maladjusted
Linear switch maladjusted
Linear position switch fault
Harness fault
Connector pins(s) bent, loose or
corroded
*
*
*
*
*GO to Pinpoint Test
A
*
PINPOINT TEST A : P0705
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
A1: RETRIEVE DTCS
• NOTE: Battery and or ECM disconnection prior to scanning wi
ll erase all data, ensure that the correct DTC is present.
Connect the scan tool 1
Have the DTC(s) and freeze frame data been recorded?
Yes GO to A2
A2: STATUS / RELATIONSHIP CHECK
Move the selector lever sl owly from P to 2 and back,
noting the illumination / positi on relationship as follows: 1
Does state illumination match the lever position in each
direction of travel?
Yes
GO to A4
No GO to A3
No With lever at D (when moving from 2 to P ) is 3 or 4
illuminated?
Yes GO to A3

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.