Ground JAGUAR X308 1998 2.G Workshop Manual

3.3. Gradient: Under specific speeds and loads
4. 4. Cruise: During cruise control
5. 5. Manual: Shift map when the LH side of the 'J gate' is used
Three specific condition shift maps have a higher priority than the two base shift maps and will intervene when appropriate
conditions prevail for traction, gradient or cruise.
When traction control (engine or brake system derived) is operational the TCM will implement the traction map to maximise
control of wheel slip.
The gradient maps are intended to enhance vehicle drivability when towing or climbing a gradient. The TCM will implement
the maps when increased driving resistan ce is detected and enhanced drivability, cooling and increa sed performance is
appropriate.
The cruise map is intended to minimize unwanted gearshifts and 'hunting' and is activated when cruising near to the set
speed, or resuming.
Connector Pins Identification
Connector Pin Identity Chart for EM007

Pin NumberCircuit Function
001Pressure regulator 2
002Mode switch status
003Not used
004Pressure regulator #4
005Pressure regulator #1
006Power ground
007Not used
008Rotary switch L2
009Rotary switch L4
010 to 011Not used
012Mode switch Pin B (Sport)
013D to 4 switch
014Input speed sensor (-)
015Output speed sensor (screen)
016Output speed sensor (+)
017Not used
018Kickdown switch (where used)
019 to 020Not used
021Analogue ground
022Fluid temperature sensor
023Input speed sensor (screen)
024 to 025Not used
026B+
027Not used
028Digital ground
029Pressure regulator #3

Connector Pin Identity Chart for CC014

Connector Pin Identity Chart for EM047
030Shift solenoid valve #1
031Not used
032Shift solenoid valve #3
033Shift solenoid valve #2
034Power ground
035Not used
036Rotary switch L1
037Rotary switch L3
038 to 041Not used
042Input speed sensor (+)
043Not used
044Output speed sensor (-)
045Mode switch Pin A (Normal)
046 to 050Not used
051Pressure regulator #5
053Solenoid valve (+)
052Pressure regulator (+)
054Fused ignition (+)
055Fused ignition (+)
056 to 081Not used
082CAN link In (-)
083CAN link In (+)
084Not used
085CAN link Out (-)
086CAN link Out (+)
087JDS L-line (not used)
088JDS K-line (not used)
Pin NumberCircuit Function
112V ignition
2Security LED (power)
3CAN link In (-)
4CAN link In (+)
5Gate illumination (power)
6Security LED (ground)
7Not used
8CAN link Out (-)
9CAN link Out (+)
10Gate illumination (ground)
11Not used
12Not used

Connector Pin Identity Chart for EM046



Pin NumberCircuit Function
00APosition L1
00BPosition L2
00CPosition L3
00DPosition L4
00EDigital ground
00FNot used
00GNot used
00HNot used
00JB+
00KPark and neutral switch
Pin NumberCircuit Function
001Output speed sensor (+)
002Pressure regulator #1
003Pressure regulator #2
004Shift solenoid valve #3
005Input speed sensor (+)
006Input speed sensor (-)
007Pressure regulator #3
008Shift solenoid valve #1
009Shift solenoid valve #2
010Output speed sensor (-)
011Pressure regulator #4
012Shift solenoid valves (+)
013Analogue ground
014Fluid temperature sensor
015Pressure regulator #5
016Pressure regulators (+)

Pinpoint test A: P0741, P0742, P0743
Pinpoint test B: P0743
Connector pin(s) bent or tracking between
connections
*
DTC P1789 Ignition supply malfunction >7 < 9
voltsBattery charging system fault
Blown fuse
Harness fault
Connector loose or corroded
Connector pin(s) bent or tracking between
connections Ground fault
*
*
*
*
*
*GO to Pinpoint
Test K
*
DTC P0710 Transmission fluid temperature
sensor malfunctionDamaged sensor
Sensor out of range / short
Harness open circuit
Harness short
Connector loose or corroded
*
*
*
*
*GO to Pinpoint
Test L
*
PINPOINT TEST A : P0741, P0742, P0743
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: RENEW TORQUE CONVERTER
Renew the torque converter 1
Has the torque converter been renewed?
Yes GO to A3
A3: END
Drive the vehicle for a period from cold to include idle, brisk
acceleration and steady state cruising up to and including
normal engine temperature. Check for the presence of DTC. 1
Has the fault code cleared?
Yes STOP
No Contact Jaguar Service
PINPOINT TEST B : P0743
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
B1: RETRIEVE DTCS
• NOTE: Battery and or ECM disconnection prior to scanning wi ll erase all data, ensure that the correct DTC is present

With EM007 and EM046 disconnected, measure the
resistance between EM007/052 and EM007/026 1
Repeat for EM007/053 and EM007/026 2
> 10 MOHM?
Yes GO to C5
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
C5: CHECK HARNESS SHORT TO GROUND

With EM007 and EM046 disconnected, measure the
resistance between EM007/030 and EM007/026
Repeat for
1
EM007/033 and EM007/026 2
EM007/032 and EM007/026 3
Is the resistance > 10 MOHM?
Yes GO to C9
No
Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
C9: CHECK HARNESS SHORT TO GROUND

With EM007 and EM046 disconnected, measure the
resistance between EM007/052 and EM007/026 1
Repeat for EM007/053 and EM007/026 2
> 10 MOHM?
Yes GO to D5
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
D5: CHECK HARNESS SHORT TO GROUND

With EM007 and EM046 disconnected, measure the
resistance between EM007/005 and EM007/026 1
Repeat for EM007/001 and EM007/026 2
EM007/029 and EM007/026 3
EM007/004 and EM007/026 4
EM007/051 and EM007/026 5
Is the resistance > 10 MOHM?
Yes GO to D9
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
D9: CHECK HARNESS SHORT TO GROUND

Is underhood fuse F1 OK?
Yes GO to K3
No Renew the fuse (10A) and te st the system for normal
operation
K3: CHECK SWITCHED POWER SUPPLY
With EM007 disconnected measure the voltage between
EM007/054 and ground EM008R 1
Repeat for EM007/055 and ground EM008R 2
B+?
Yes Cycle the ignition ON - (OFF for 2 minutes) -
ON, start the engine and run >1600 rpm, if the fault re-logs contact
Jaguar Service
No No re-log?
GO to K5
No GO to K4
K4: CHECK HARNESS CONTINUITY - SWITCHED POWER SUPPLY

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Electronic Pressure Control (EPC) Solenoid
In-vehicle Repair
Removal

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

2. Raise the vehicle on a suitable 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 fixings which secure the fluid pan .
Remove the fluid pan and all traces of gasket material.

4. Disconnect regulator / solenoid connectors.
5. Remove RH rear valve body securing screws.