Ecu JAGUAR XFR 2010 1.G Owners Manual

MANIFOLD ABSOLUTE PRESSURE AND TEMPERATURE SENSOR













The MAPT sensor allows the ECM to calculate the air charge density immediately before it enters the cylinders. This is used to adjust the ignition timing relative to the boost pressure, and to monitor the performance of the charge air coolers.

The MAPT sensor is installed in the rear of the LH intake manifold. The sensor is secured with a single screw and sealed with an O-ring. A four pin electrical connector provides the interface with the engine harness.

THROTTLE POSITION SENSORS

The TP (throttle position) sensors allow the ECM to determine the position and angular rate of change of the throttle blade. There are two TP sensors located in the electronic throttle. See below for details of the electronic throttle. If aTP sensor fails, the ECM:
Adopts a limp home mode where engine speed is limited to a maximum of approximately 2000 rev/min
Discontinues evaporative emissions control
Discontinues closed loop control of engine idle speed.

With a failed TP sensor, the engine will suffer from poor running and throttle response.
HEATED OXYGEN SENSORS



Item Description A Upstream heated oxygen sensor B Downstream heated oxygen sensor The heated oxygen sensors allow the ECM to measure the oxygen content of the exhaust gases, for closed loop control of the fuel:air mixture and for catalytic converter monitoring.

An upstream heated oxygen sensor is installed in the outlet of each exhaust manifold, which enables independent control of
the fuel:air mixture for each cylinder bank. A downstream heated oxygen sensor is installed in each catalytic converter, which
enables the performance of the catalytic converters to be monitored.

Oxygen sensors need to operate at high temperatures in order to function correctly. To achieve the high temperatures required,
the sensors are fitted with heater elements that are controlled by a PWM (pulse width modulation) signal from the ECM. The heater elements are operated immediately after each engine start and during low load conditions when the temperature of the
exhaust gases is insufficient to maintain the required sensor temperature. The PWM duty cycle is carefully controlled to prevent thermal shock to cold sensors. A non-functioning heater delays the sensor’s readiness for closed loop control and
increases emissions.

The upstream heated oxygen sensors produce a constant voltage, with a variable current that is proportional to the lambda
ratio. The downstream heated oxygen sensors produce an output voltage dependant on the ratio of the exhaust gas oxygen to

the period of rich to lean and lean to rich switching monitors the response rate of the upstream sensors.

Diagnosis of electrical faults is continually monitored in both the upstream and downstream sensors. This is achieved by
checking the signal against maximum and minimum threshold, for open and short circuit conditions.
If a heated oxygen sensor fails:

The ECM defaults to open loop fueling for the related cylinder bank The CO (carbon monoxide) and emissions content of the exhaust gases increases
The exhaust smells of rotten eggs (hydrogen sulphide).
With a failed heated oxygen sensor, the engine will suffer from unstable operation and reduced performance.

ACCELERATOR PEDAL POSITION SENSOR



The APP sensor allows the ECM to determine the driver requests for vehicle speed, acceleration and deceleration. The ECM uses this information to determine the setting of the electronic throttle.

The APP sensor is installed on the pedal box and secured with three screws. A six pin electrical connector provides the interface with the vehicle harness. The accelerator pedal is connected to a spindle on the RH side of the APP sensor.
The APP sensor is a twin track potentiometer. Each track receives an independent power supply from the ECM and returns an independent analog signal to the ECM. Both signals contain the same positional information, but the signal from track 2 is half the voltage of the signal from track1 at all positions.
If both signals have a fault, the ECM adopts a limp home mode, which limits the engine speed to 2000 rev/min maximum. The ECM constantly checks the range and plausibility of the two signals and stores a fault code if it detects a fault. www.JagDocs.com

Published: 16-Sep-2013
Electronic Engine Controls - V8 S/C 5.0L Petrol - Electronic Engine Controls
Diagnosis and Testing

Principle of Operation

For a detailed description of electronic engine controls, refer to the relevant Description and Operation section of the workshop
manual. REFER to: (303-14D Electronic Engine Controls - V8 S/C 5.0L Petrol)

Electronic Engine Controls (Description and Operation), Electronic Engine Controls (Description and Operation), Electronic Engine Controls (Description and Operation).
Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Engine oil level and condition
Cooling system coolant level
Fuel level
Fuel contamination/grade/quality
Throttle body
Front End Accessory Drive (FEAD) belt
Air cleaner condition
Fuses
Wiring harness
Electrical connector(s)
Sensor(s)
Engine Control Module
Transmission Control Module
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step.

4. If the cause is not visually evident, verify the customer concern and refer to the Symptom Chart below, alternatively,
check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.
Symptom Chart

Symptom Possible Cause Action Engine non-start Engine does not crank
Security system /Immobilizer
engaged
Engine in shut-down mode
ECM relay
Battery
Starting system
Engine seized
Check that the security system is disarmed
Read DTCs and refer to DTC Index in this
section for ECM relay tests
Ensure the battery is in fully charged and
serviceable condition
For starting system tests refer to the
relevant section of the workshop manual
For engine system tests refer to the relevant
section of the workshop manual Engine cranks, but does not fire
Engine breather system
disconnected/restricted
Ignition system
Fuel system
Electronic engine controls
Ensure the engine breather system is free
from restriction and is correctly installed
For ignition system tests refer to the
relevant section of the workshop manual
For fuel system tests refer to the relevant
section of the workshop manual
Read DTCs and refer to DTC Index in this
section for electronic engine control tests Engine cranks and fires, but will not
start
Evaporative emissions purge
valve
Fuel pump
Spark plugs
Ignition coil failure(s)
For purge valve tests refer to the relevant
section of the workshop manual
For fuel system tests refer to the relevant
section of the workshop manual
For ignition system tests refer to the
relevant section of the workshop manual Difficult to start Difficult cold start
Check engine coolant
level/anti-freeze content
Battery
Electronic engine controls
Exhaust gas recirculation
Check the engine coolant level and
condition. Refer to the relevant sections of
the workshop manual
Ensure the battery is in a fully charged and
serviceable condition. Refer to the battery

DTC Description Possible Causes Action B10AC-81
Cruise Control Switch -
invalid serial data received
The Engine Control Module
(ECM) has received an invalid
command from the steering
wheel switch pack Clear the DTC and press all the steering wheel
switches, re-check for DTCs. Refer to the
electrical circuit diagrams and check the Cruise
control switch circuit for open circuit, short to
power, short to ground, disconnected. Check
and install a new Steering Wheel Module (SWM) as required. B10AC-82 Cruise Control Switch - alive / sequence counter incorrect / not updated
Cruise Buttons alive counter is
not incrementing. Which
suggests that the LIN bus is
faulty
Steering Wheel Module (SWM) is
not connected
Steering Wheel Module (SWM)
failure Refer to the electrical circuit diagrams and
check the Cruise control switch circuit for open
circuit, short to power, short to ground,
disconnected. Check and install a new Steering
Wheel Module (SWM) as required. B10AC-83
Cruise Control Switch - value
of signal protection
calculation incorrect
Cruise buttons checksum
incorrect, incorrect cruise
switches fitted to vehicle Check and install new cruise switches as
required. B10AC-96
Cruise Control Switch -
component internal failure
Cruise control switch circuit,
open circuit, short to power,
short to ground, disconnected
Cruise Control Switch failure
Steering Wheel Module (SWM)
failure Check for related DTCs in other Central
Junction Box (CJB)s. Refer to the electrical
circuit diagrams and check the Cruise control
switch circuit for open circuit, short to power,
short to ground, disconnected. Check and
install a new cruise control switch as required.
Check and install a new Steering Wheel
Module (SWM) as required. B10FF-68
Ignition Control - Event
information
Spark plug(s) fault
Wiring harness fault
Ignition coil(s) fault Refer to repair manual and check spark plug(s)
for condition and security. Replace any
defective components as required. Refer to
electrical wiring diagrams and check ignition
coil circuit for intermittent open circuit, short
to power, short to ground. Check and install a
new coil(s) as required. B11DB-01
Battery Monitoring Module -
General Electrical Failure
Charging system fault Battery
monitoring signal line
circuit fault
Vehicle battery fault Refer to electrical wiring diagrams and check
charging system for faults. Perform any repairs
required. Refer to the electrical wiring
diagrams and check the Battery Monitoring
System (BMS) module circuit for open circuit,
short to ground, short to power. Refer to the
battery care manual and check and install a
new battery. B11DB-87
Battery Monitoring Module -
missing message
Battery signal line circuit fault Refer to the electrical wiring diagrams and
check the Battery Monitoring System (BMS)
module circuit for open circuit, short to ground,
short to power. B1206-68
Crash Occurred - event
information
Engine control Module (ECM) has
detected the vehicle has crashed
- event information DTC only Refer to the electrical circuit diagrams and
check the Engine Control Module (ECM) to
Restraints Control Module (RCM) circuit for
short to ground, short to power, open circuit.
Repair circuit as required, clear DTC and retest
system to confirm repair. C0031-00
Left Front Wheel Speed
Sensor - No sub type
information
Invalid data received from
Anti-lock Braking System (ABS)
module - left front wheel speed
signal fault Check Anti-lock Braking System (ABS) module
for related DTCs and refer to relevant DTC
Index. C0034-00
Right Front Wheel Speed
Sensor - No sub type
information
Invalid data received from
Anti-lock Braking System (ABS)
module - right front wheel speed
signal fault Check Anti-lock Braking System (ABS) module
for related DTCs and refer to relevant DTC
Index. C0037-00
Left Rear Wheel Speed
Sensor - No sub type
information
Invalid data received from
Anti-lock Braking System (ABS)
module - left rear wheel speed
signal fault Check Anti-lock Braking System (ABS) module
for related DTCs and refer to relevant DTC
Index. C003A-00
Right Rear Wheel Speed
Sensor - No sub type
information
Invalid data received from
Anti-lock Braking System (ABS)
module - right rear wheel speed
signal fault Check Anti-lock Braking System (ABS) module
for related DTCs and refer to relevant DTC
Index.

The TCM can be reprogrammed using a Jaguar approved diagnostic system using a flash code. The TCM processor has a 440 kb internal flash memory. Of this capacity, approximately 370 kb are used by the basic transmission program. The remainder,
approximately 70 kb is used to store vehicle-specific application data.

Engine Stall

If the vehicle stalls it will coast down in gear, with the transmission providing drive to the engine. A restart can be attempted
at this point and the engine may start and the driver can continue.

If the coast down speed reduces such that the speed of the engine is less than 600 rev/min, the transmission will go to
neutral, D illumination will flash in the instrument cluster. The driver needs to select neutral or park and then press the brake
pedal to restart the engine.

If the start/stop button is pressed when driving, the message ENGINE STOP BUTTON PRESSED is displayed in the message
center but there will be no change to the ignition state. If the driver requires to switch off the engine, the start/stop button
must be pressed for a second time. The engine will be stopped and will be back driven by the transmission as the vehicle
coasts down. When the engine speed is less than 600 rev/min the transmission engages neutral (flashing D illumination in the
instrument cluster). When vehicle speed is less than 2 km/h (1.2 mph) Park is engaged. The JaguarDrive selector automatically
rotates back to its lowered P position and the vehicle ignition is switched off.

The park engagement is prevented in a stall case as the ignition power is on and D was the last selected gear. The park
engagement speed at ignition off is from the least value of the wheel speeds (CAN signal) and transmission output speed (internal signal).


TRANSMISSION Component Description

The transmission comprises the main casing which houses all of the transmission components. The main casing also
incorporates an integral bell housing.

A fluid pan is attached to the lower face of the main casing and is secured with bolts. The fluid pan is sealed to the main
casing with a gasket. Removal of the fluid pan allows access to the Mechatronic valve block. The fluid pan has a magnet
located around the drain plug which collects any metallic particles present in the transmission fluid.

A fluid filter is located inside the fluid pan. If the transmission fluid becomes contaminated or after any service work, the fluid
pan with integral filter must be replaced.

The integral bell housing provides protection for the torque converter assembly and also provides the attachment for the
gearbox to the engine cylinder block. The torque converter is a non-serviceable assembly which also contains the lock-up clutch
mechanism. The torque converter drives a crescent type pump via drive tangs. The fluid pump is located in the main casing,
behind the torque converter.
The main casing contains the following major components:
Input shaft
Output shaft
Mechatronic valve block which contains the solenoids, speed sensors and the TCM Three rotating multiplate drive clutches
Two fixed multiplate brake clutches
A single planetary gear train and a double planetary gear train.

1 Securing ring 2 Shaft oil seal 3 O-ring seal 4 Pump housing 5 Ring gear 6 Crescent spacer 7 Roller bearing 8 Impeller 9 Centering pin 10 Spring washer 11 Outlet port (high pressure) 12 Inlet port (low pressure) The pump comprises a housing, a crescent spacer, an impeller and a ring gear. The housing has inlet and outlet ports to direct
flow and is located in the intermediate plate by a centering pin. The pump action is achieved by the impeller, ring gear and
crescent spacer.

The crescent spacer is fixed in its position by a pin and is located between the ring gear and the impeller. The impeller is
driven by drive from the torque converter hub which is located on a needle roller bearing in the pump housing. The impeller
teeth mesh with those of the ring gear. When the impeller is rotated, the motion is transferred to the ring gear which rotates
in the same direction.

The rotational motion of the ring gear and the impeller collects fluid from the intake port in the spaces between the teeth.
When the teeth reach the crescent spacer, the oil is trapped in the spaces between the teeth and is carried with the rotation
of the gears. The spacer tapers near the outlet port. This reduces the space between the gear teeth causing a build up of fluid
pressure as the oil reaches the outlet port. When the teeth pass the end of the spacer the pressurized fluid is released into
the outlet port.

The fluid emerging from the outlet port is passed through the fluid pressure control valve. At high operating speeds the
pressure control valve maintains the output pressure to the gearbox at a predetermined maximum level. Excess fluid is
relieved from the pressure control valve and is directed, via the main pressure valve in the valve block, back to the pump inlet
port. This provides a pressurized feed to the pump inlet which prevents cavitation and reduces pump noise.

DTC Description Possible Cause Action P0967-12
Pressure Control Solenoid B
Control Circuit High - Circuit
Short to Battery
Pressure control solenoid
2 Circuit Short to Power Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0968-14
Pressure Control Solenoid C
Control Circuit / Open -
Circuit Short to Ground or
Open
Pressure control solenoid
3 Circuit Short to Ground
or Open Circuit Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P0970-11
Pressure Control Solenoid C
Control Circuit Low - Circuit
Short to Ground
Pressure control solenoid
3 Circuit Short to Ground Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0971-12
Pressure Control Solenoid C
Control Circuit High - Circuit
Short to Battery
Pressure control solenoid
3 Circuit Short to Power Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0972-22
Shift Solenoid A Control
Circuit Range/Performance -
signal amplitude >
maximum
Pressure control solenoid
1 current too large Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0973-11
Shift Solenoid A Control
Circuit Low - Circuit Short to
Ground
Shift solenoid A control
Circuit Short to Ground Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0973-14
Shift Solenoid A Control
Circuit Low - Circuit Short to
Ground or Open
Pressure control solenoid
1 Circuit Short to Ground
or Open Circuit Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P0973-1A
Shift Solenoid A Control
Circuit Low - Circuit
Resistance Below Threshold
Shift Solenoid A control
circuit resistance below
threshold Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P0973-1E
Shift Solenoid A Control
Circuit Low - Circuit
Resistance Out Of Range
Shift Solenoid A control
circuit resistance out of
range Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P0976-11
Shift Solenoid B Control
Circuit Low - Circuit Short to
Ground
Solenoid valve 2 Circuit
Short to Ground Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P0976-14
Shift Solenoid B Control
Circuit Low - Circuit Short to
Ground or Open
Solenoid valve 2 Circuit
Short to Ground or Open
Circuit Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P1674-04
Control Module Software
Corrupted - System Internal
Failures
System internal failures Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P1674-48
Control Module Software
Corrupted - Supervision
Software Failure
Supervision software
failure Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P1707-07 Transfer Case Neutral or
Park/Neutral Indication
Circuit - commanded
position not reachable
Transfer case neutral or
park/neutral indication
circuit - mechanical
failures Clear the DTC. Test drive the Vehicle, engaging and
disengaging the parking lock several times. If the DTC
recurs, check parking lock components and replace as
required. If no faulty park lock component is found
Clear DTC and the DTC returns suspect the
Transmission control module. Install a new
Transmission control module as required, refer to the
new module/component installation note at the top of
the DTC Index P1707-72 Transfer Case Neutral or
Park/Neutral Indication
Circuit - Actuator Stuck Open
Transfer case neutral or
park/neutral indication
circuit - Actuator stuck
open Clear the DTC. Test drive the Vehicle, engaging and
disengaging the parking lock several times. If the DTC
recurs, check parking lock components and replace as
required. If no faulty park lock component is found
Clear DTC and the DTC returns suspect the
Transmission control module. Install a new
Transmission control module as required, refer to the
new module/component installation note at the top of
the DTC Index

DTC Description Possible Cause Action P1707-77 Transfer Case Neutral or
Park/Neutral Indication
Circuit - commanded
position not reachable
Commanded position not
reachable Clear the DTC. Test drive the Vehicle, engaging and
disengaging the parking lock several times. If the DTC
recurs, check parking lock components and replace as
required. If no faulty park lock component is found
Clear DTC and the DTC returns suspect the
Transmission control module. Install a new
Transmission control module as required, refer to the
new module/component installation note at the top of
the DTC Index P2700-07 Transmission Friction
Element A Apply Time
Range/Performance -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (Gearbox) internal
fault. Install a new Transmission as required, refer to
the new module/component installation note at the top of the DTC Index P2701-07 Transmission Friction
Element B Apply Time
Range/Performance -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (Gearbox) internal
fault. Install a new Transmission as required, refer to
the new module/component installation note at the top of the DTC Index P2702-07 Transmission Friction
Element C Apply Time
Range/Performance -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (Gearbox) internal
fault. Install a new Transmission as required, refer to
the new module/component installation note at the top of the DTC Index P2703-07 Transmission Friction
Element D Apply Time
Range/Performance -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (Gearbox) internal
fault. Install a new Transmission as required, refer to
the new module/component installation note at the top of the DTC Index P2704-07 Transmission Friction
Element E Apply Time
Range/Performance -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (Gearbox) internal
fault. Install a new Transmission as required, refer to
the new module/component installation note at the top of the DTC Index P2713-04 Pressure Control Solenoid D
- System Internal Failures
System internal failures Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P2713-48 Pressure Control Solenoid D
- Supervision Software
Failure
Supervision software
failure Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P2716-22
Pressure Control Solenoid D
Electrical - signal amplitude
> maximum
Pressure Control Solenoid
D Electrical signal
amplitude > maximum Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P2716-1A
Pressure Control Solenoid D
Electrical - Circuit Resistance
Below Threshold
Pressure control solenoid
D circuit resistance below
threshold Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P2716-1E
Pressure Control Solenoid D
Electrical - Circuit Resistance
Out Of Range
Pressure control solenoid
D circuit resistance out
of range Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P2718-14
Pressure Control Solenoid D
Control Circuit / Open -
Circuit Short to Ground or
Open
Pressure control solenoid
D Circuit Short to Ground
or Open Circuit Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the
top of the DTC Index P2720-11
Pressure Control Solenoid D
Control Circuit Low - Circuit
Short to Ground
Pressure control solenoid
D Circuit Short to Ground Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P2721-12
Pressure Control Solenoid D
Control Circuit High - Circuit
Short to Battery
Pressure control solenoid
D Circuit Short to Power Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index P2722-04 Pressure Control Solenoid E
- System Internal Failures
Pressure Control Solenoid
E system internal failures Suspect the Transmission control module. Install a
new Transmission control module as required, refer to
the new module/component installation note at the top of the DTC Index

15.
Using a suitable tie strap, secure the driveshaft.














16. WARNING: Make sure that the transmission is secured with
suitable retaining straps.
Using a suitable stand, support the transmission.

17.
18.


























NOTE: The transmission is lowered for access.

Lower the rear of the transmission for access. www.JagDocs.com

15.
Using a suitable tie strap, secure the driveshaft.














16. WARNING: Make sure that the transmission is secured with
suitable retaining straps.
Using a suitable stand, support the transmission.

17.
18.


























NOTE: The transmission is lowered for access.

Lower the rear of the transmission for access. www.JagDocs.com