instrument cluster JAGUAR XFR 2010 1.G Manual PDF
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Page 1423 of 3039

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.  
Page 1441 of 3039

 
DTC Description Possible Cause Action P0781-07 
1-2 Shift - 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 P0781-77 
2-1 Shift - commanded 
position not reachable  
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 P0782-07 
2-3 Shift - commanded 
position not reachable  
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 P0782-77 
3-2 Shift - commanded 
position not reachable  
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 P0783-07 
3-4 Shift - 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 P0783-77 
3-4 Shift - commanded 
position not reachable  
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 P0784-07 
4-5 Shift - 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 P0784-77 
4-5 Shift - commanded 
position not reachable  
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 P0798-1A 
Pressure Control Solenoid C 
Electrical - Circuit Resistance 
Below Threshold  
Pressure control solenoid 
C 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 P0798-1E 
Pressure Control Solenoid C 
Electrical - Circuit Short to 
Ground  
Pressure control solenoid 
C electrical 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 P0798-21 
Pressure Control Solenoid C 
Electrical - signal amplitude 
< minimum  
Pressure Control Solenoid 
C Electrical signal 
amplitude < minimum 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 P0814-62 Transmission Range Display 
Circuit - signal compare 
failure  
Transmission Range 
Display Circuit signal 
compare 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 P0826-08 
Up and Down Switch circuit - 
Bus Signal Message Failures  
Invalid CAN signal from 
BCM/Instrument cluster 
Stuck switch 
CAN bus circuit fault Check Central junction box and Instrument cluster for 
stored DTCs. Check gear change switches for correct 
operation. Refer to circuit diagrams and check CAN bus 
for a circuit fault P0826-81 
Up and Down Switch Circuit - 
invalid serial data received  
Invalid Can signal from 
BCM / Instrument cluster 
Stuck switch 
CAN Bus Circuit fault Check Central junction box and Instrument cluster for 
stored DTCs. Check Gear Change Switches for correct 
operation. Refer to Circuit diagrams and check CAN 
Bus for Circuit fault P0826-88 
Up and Down Switch Circuit - 
Bus off  
SWM to BCM / 
Instrument cluster LIN 
Bus failure Check Central junction box and Steering Wheel Ice 
Switches for stored DTCs. Refer to Circuit diagrams 
and check LIN Bus for Circuit fault  
Page 1447 of 3039

 
DTC Description Possible Cause Action U0103-82 
Lost Communication With 
Gear Shift Control Module 
A-alive / sequence counter 
incorrect / not updated  
Alive counter fault Check Transmission shift module for stored DTCs. 
Check CAN Bus Circuit for fault U0103-83 
Lost Communication With 
Gear Shift Control Module A 
- value of signal protection 
calculation incorrect  
Checksum fault Check Transmission shift module for stored DTCs. 
Check CAN Bus Circuit for fault U0103-87 
Lost Communication With 
Gear Shift Control Module A 
- missing message  
CAN Timeout Check Transmission shift module for stored DTCs. 
Check CAN Bus Circuit for fault U0122-82 
Lost Communication With 
Vehicle Dynamics Control 
Module - alive / sequence 
counter incorrect / not updated  
Alive counter fault Check Anti-lock braking system for stored DTCs. Check 
CAN Bus Circuit for fault U0122-83 
Lost Communication With 
Vehicle Dynamics Control 
Module - value of signal 
protection calculation 
incorrect  
Checksum fault Check Anti-lock braking system for stored DTCs. Check 
CAN Bus Circuit for fault U0122-87 
Lost Communication With 
Vehicle Dynamics Control 
Module - missing message  
CAN Timeout Check Anti-lock braking system for stored DTCs. Check 
CAN Bus Circuit for fault U0126-00 
Lost Communication With 
Steering Angle Sensor 
Module - no sub type 
information  
Lost Communication 
With Steering Angle 
Sensor Module Check Steering angle sensor for stored DTCs. Check 
CAN Bus Circuit for fault U0128-87 
Lost Communication With 
Park Brake Control Module - 
missing message  
CAN timeout electronic 
parking brake module Check Electronic Parking Brake Module for stored DTCs. 
Check CAN Bus Circuit for fault U0140-82 
Lost Communication With 
Body Control Module - alive / sequence counter incorrect / not updated  
Alive counter fault Check Central junction box for stored DTCs. Check CAN 
Bus Circuit for fault U0140-83 
Lost Communication With 
Body Control Module - value 
of signal protection 
calculation incorrect  
Checksum fault Check Central junction box for stored DTCs. Check CAN 
Bus Circuit for fault U0140-87 
Lost Communication With 
Body Control Module - missing message  
CAN Timeout Check Central junction box for stored DTCs. Check CAN 
Bus Circuit for fault U0155-87 
Lost Communication With 
Instrument Panel Cluster 
(Instrument cluster) Control 
Module - missing message  
CAN timeout instrument 
cluster Check Instrument cluster for stored DTCs. Check CAN 
Bus Circuit for fault U0300-68 
Control Module - event 
information  
Transmission software 
does not match vehicle 
network Check Central junction box software level, Check 
Transmission control module Software level, Update 
software as required using the manufacturer approved 
process U0401-08 
Invalid Data Received From 
Engine control module/PCM 
A - Bus Signal Message 
Failures  
Inaccurate engine speed, 
torque information Check Engine control module for stored DTCs, Check 
CAN Bus circuit for faults U0401-68 
Invalid Data Received from 
Engine control module/PCM 
A - event information  
Inaccurate engine speed, 
torque information Check Engine control module for stored DTCs. Check 
CAN Bus Circuit for fault U0401-86 
Invalid Data Received from 
Engine control module/PCM 
A - Signal Invalid  
Inaccurate engine speed, 
torque information Check Engine control module for stored DTCs. Check 
CAN Bus Circuit for fault U0404-68 
Invalid Data Received from 
Gear Shift Control Module A 
- event information  
Incorrect CAN data 
received from 
Transmission shift 
module Check Transmission Shift Module for stored DTCs. 
Refer to Circuit diagrams and check CAN and LIN Bus 
for Circuit fault U0404-81 
Invalid Data Received from 
Gear Shift Control Module A 
- Invalid Serial Data 
Received  
Incorrect LIN data 
received from 
Transmission shift 
module Check Transmission Shift Module for stored DTCs. 
Refer to Circuit diagrams and check CAN and LIN Bus 
for Circuit fault www.JagDocs.com 
Page 1530 of 3039

 
6 Clockspring 7 Steering wheel audio switches 8 Upshift paddle switch 9 Downshift paddle switch 10 Instrument cluster 11 JaguarDrive selector  
 
 
JAGUARDRIVE SELECTOR System Operation 
 
Rotation of the JaguarDrive selector to any of the five positions is sensed by the TCM (transmission control module) via the 
high speed CAN bus. A LIN bus connection is also provided, but is only used in the event of a CAN bus failure as a back-up. The TCM then reacts according to the selected position. The JaguarDrive selector is a magnetic system using Hall effect sensors to determine the position of the selector. 
 
The S (sport) position selection allows the TCM to operate the transmission using the semi-automatic Jaguar sequential shift. Gear selections are sensed by the TCM when the driver operates the steering wheel paddle switches. Once the JaguarDrive selector position is confirmed, the TCM outputs appropriate information on the high speed CAN bus which is received by the instrument cluster to display the gear selection information in the message center. 
Refer to: Information and Message Center (413-08 Information and Message Center, Description and Operation).  
The paddles can also be used on a temporary basis when the JaguarDrive selector is in the D (drive) position to override the 
automatic gear selection if required. 
 
PARK INTERLOCK AND NEUTRAL LOCK 
 
Neutral lock is a requirement for the JaguarDrive selector. The selector is always locked at ignition on when the engine is not 
running, except after an engine stall when the selector is not in P (park) or N (neutral). 
 
If, when driving with the JaguarDrive selector in S, D or R (reverse) at a speed of more than 5 km/h (3 mph), the driver selects 
P or N: 
 
Without the brake pedal pressed, the JaguarDrive selector will be immediately locked once the vehicle speed falls to 
below 5 km/h (3 mph). 
With the brake pedal pressed, the JaguarDrive selector will remain locked for as long as the brake pedal remains 
pressed, regardless of vehicle speed. 
The transmission will only engage park once the vehicle speed is less than 2 km/h (1 mph). 
 
If the driver selects N and releases the brake pedal with a vehicle speed of less than 5 km/h (3 mph), the JaguarDrive selector 
will be locked 2 seconds after N is selected. The selector will remain locked until the driver presses the brake pedal again. 
 
To ensure that a driver request to change from a non-driving range (N for example) to a driving range (D for example), the park 
interlock and neutral lock features are used in conjunction with the intermediate position. 
 
If the transmission receives a range change request without the brake pedal pressed, the TCM initiates a soft lock function. The transmission will remain in park or neutral, depending on the starting position. 
If a transmission position letter is flashing in the message center and the vehicle has no drive, the driver must: 
Press the brake pedal. 
Reselect N or P on the JaguarDrive selector. 
Select the required driving range, ensuring that the brake pedal is pressed. 
Rocking Function 
 
The rocking function compliments the neutral lock function. For all changes from a non-driving range to a driving range, it is 
necessary to press the brake pedal (to release either the park interlock or neutral lock). 
 
In situations where the driver will require to change the gear selection from R to D, or from D to R, without brake pedal input 
(car park maneuvering, 3 point turns or 'rocking' the vehicle from a slippery surface for example), the rocking function gives a 2 
second lock delay when N is selected on the JaguarDrive selector and the brake pedal is not pressed. 
 
Intermediate Position 
 
If the JaguarDrive selector is rotated slowly from P to S and back to position P with the brake pedal pressed, the R or D 
position display letter in the message center will flash and the transmission will remain in park or neutral depending on the 
previous starting position of the selector. 
 
If the brake pedal is released when R or D is flashing in the message center and the JaguarDrive selector is rotated to the R or 
D position, the required range will not be selected and the transmission will remain in park or neutral, depending on the 
previous starting position. This feature is known as soft lock. 
 
If the driving range letter in the message center is flashing and the vehicle has no drive, the driver should depress the brake 
pedal to reselect N or P, and then select the required driving range while the brake pedal remains pressed.  
Page 1532 of 3039

signal which is passed via the clockspring to the instrument cluster. The instrument cluster converts the signal into a high 
speed CAN bus signal to the TCM.  
Pulling the LH (left-hand) downshift - paddle provides down changes and pulling the RH (right-hand) upshift (+) paddle 
provides up changes. The first operation of either paddle, after sport mode is selected, puts the transmission into permanent 
manual Jaguar sequential shift mode. Rotation of the JaguarDrive selector back to the D position, returns the transmission to 
conventional automatic operation. 
 
Temporary operation of manual Jaguar sequential shift mode can also be operated with the JaguarDrive selector in the D 
position. Operation of either the upshift or downshift paddles activates the manual mode operation. If the JaguarDrive selector 
is in D, Jaguar sequential shift will cancel after a time period or can be cancelled by pressing and holding the + paddle for 
approximately 2 seconds. PADDLE SWITCHES  
Page 1591 of 3039

1 Magnetic foil 2 Spacer 3 Ceramic surface 4 Magnet 5 Resistance film The film resistors are arranged in a linear arc with resistance ranging from 51.2 to 992.11 Ohms. The electrical output signal is 
proportional to the amount of fuel in the tank and the position of the float arm. The measured resistance is processed by the 
instrument cluster to implement an anti-slosh function. This monitors the signal and updates the fuel gauge pointer position  
at regular intervals, preventing constant pointer movement caused by fuel movement in the tank due to cornering or braking. 
A warning lamp is incorporated in the instrument cluster and illuminates when the fuel level is low. 
 
The fuel level sender signal is converted into a CAN message by the instrument cluster as a direct interpretation of the fuel tank contents in liters. The ECM uses the CAN message to store additional OBD (on-board diagnostic) 'P' Codes for misfire detection when the fuel level is below a predetermined capacity. 
 
JET PUMP 
 
The fuel system incorporates two jet pumps. One jet pump is integrated into the fuel pump and draws fuel from the RH side of the fuel tank. The other jet pump is located on the fuel delivery module on the RH side of the tank. There is a pipe that is located in the LH side of the tank that allows fuel to be drawn over from the LH side of the tank, delivering fuel into the swirl pot. The jet pumps operate on a venturi effect created by the fuel at pump output pressure passing through the jet pump. This 
draws additional fuel from the LH side of the tank through ports in the jet pump body, delivering additional fuel to the swirl pot. 
 
FUEL VENT VALVE 
 
The fuel level vent valve is located in the upper half of the tank and is connected into a separator which is connected to the 
Roll Over Valve (ROV) tank breather. The main purpose of the fuel level vent valve is to control the fill volume of the tank. 
During filling, air trapped inside the tank and a small amount of vapor is passed via the fuel level vent valve to the tank 
breather. The air and vapor mix then vents to atmosphere through the breather. During filling, when the tank reaches its full 
level, the fuel level vent valve closes and prevents air/vapor passing through to the tank breather. The resulting back pressure 
causes refueling to stop automatically. 
 
The fuel level vent valve is always open when the fuel tank is below full, providing an unrestricted air/vapor outlet to the tank 
breather. 
www.JagDocs.com 
Page 1597 of 3039

 
Symptom Possible Causes Action  Electronic engine control 
Throttle motor 
Restricted accelerator pedal 
travel (carpet, etc) 
Ignition system 
Transmission malfunction Check for air leakage in air intake system 
Ensure accelerator pedal is free from restriction 
Check for electronic engine controls, ignition, engine 
emission system and  transmission related DTCs and 
refer to the relevant DTC Index Engine backfires  
Fuel pump/lines 
Air leakage 
Electronic engine controls 
Ignition system 
Sticking variable camshaft 
timing (VCT) hub  
Check for fuel system failures 
Check for air leakage in intake air system 
Check for electronic engine controls, ignition system 
and VCT system related DTCs and refer to the 
relevant DTC Index Engine surges  
Fuel pump/lines 
Electronic engine controls 
Throttle motor 
Ignition system  
Check for fuel system failures 
Check for electronic engine controls, throttle system 
and ignition system related DTCs and refer to the 
relevant DTC Index Engine detonates/knocks  
Fuel pump/lines 
Air leakage 
Electronic engine controls 
Sticking VCT hub  
Check for fuel system failures 
Check for air leakage in intake air system 
Check for electronic engine controls and VCT system 
related DTCs and refer to the relevant DTC Index No throttle response  
Electronic engine controls 
Throttle motor  
Check for electronic engine controls and throttle 
system related DTCs and refer to the relevant DTC 
Index Poor throttle response  
Breather system 
disconnected/restricted 
Electronic engine controls 
Transmission malfunction 
Traction control event 
Air leakage  
Ensure the engine breather system is free from 
restriction and is correctly installed 
Check for electronic engine controls, transmission 
and  traction control related DTCs and refer to the 
related DTC Index 
Check for air leakage in intake air system Fuel gauge reading empty 
with fuel in the fuel tank  
Active fuel level sensor 
circuit open circuit 
Passive fuel level sensor 
circuit open circuit 
Instrument cluster internal 
failure  
Using the manufacturer approved diagnostic system, 
perform the guided diagnostic routine - Fuel Level 
Sensor Test Fuel gauge not reading empty 
with no fuel in the fuel tank  
Jet pump fault 
Fuel crossover tube blocked 
or leaking  
Using the manufacturer approved diagnostic system, 
check datalogger signals - Fuel Sender 2 (0x61B8) - 
Fuel Sender 1 (0x61B7). Refer to the table below. If 
the right sensor reads empty when the left sensor 
reads more than empty, check that the jet pump is 
transferring fuel from the left side to the right side Fuel Gauge, Resistance, Voltage And Fuel Tank Level Comparison Chart 
 
Use the chart to determine fuel tank fuel volume versus fuel gauge reading to determine the fuel level symptom and fault. 
NOTES: 
 
The vehicle must be parked on a level surface to obtain an accurate fuel level gauge reading. 
 
 
The actual values may vary, according to the quantity of fuel in the left and right sides of the fuel tank. 
 
 
An accurate fuel level gauge reading requires 3 to 5 minutes for levels to stabilise. 
 
Volume, Resistance and Voltage Values 
 
Gauge Reading  
Fill Volume (L) Fuel Sender 2 (0x61B8) - Right side Fuel Sender 1 (0x61B7) - Left side Resistance (Ω) CAN Count (Tolerance ± 10) Resistance (Ω) CAN Count (Tolerance ± 10)  0 52 75 51 74  2 60 86 51 74  4 76 107 51 74  
Page 1637 of 3039

1 ECM (engine control module) 2 Instrument cluster 3 Clock spring 4 Speed control switches 5 Forward alert switch 6 Adaptive speed control module 7 Brake lamp/brake test switch 8 APP (accelerator pedal position) sensor
Page 1639 of 3039

Published: 11-May-2011 
Speed Control - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Speed Control - Overview 
Description and Operation 
 
OVERVIEW 
 
Speed Control 
 
The speed control system is integrated with the engine management system and uses fueling intervention to automatically 
maintain a set vehicle speed. Once engaged, the system can also be used to accelerate the vehicle without using the 
accelerator pedal. 
The speed control system comprises the following components: 
 
On/Off/Suspend switch 
'+' and '-' (set/accelerate and decelerate) steering wheel switches 
Resume switch 
Clock spring 
Speed control warning indicator. 
Adaptive Speed Control 
 
The adaptive speed control system uses a forward looking radar sensor to scan the road ahead, looking for objects that are 
moving at a different rate to itself. When a target is identified the adaptive speed control system will monitor the time gap 
between it and the target vehicle. When that gap falls below a set driver selected level the adaptive speed control system will 
intervene slowing the vehicle by backing off the throttle and/ or applying the brakes, until the correct gap is attained. 
The adaptive speed control system comprises the following components: 
Adaptive speed control sensor 
Adaptive speed control module 
Steering wheel control switches 
ECM (engine control module) 
Electric throttle actuator 
ABS (anti-lock brake system) module and pump 
Adaptive speed control warning indicator (in the instrument cluster).  
Page 1641 of 3039

 
6 Clockspring 7 APP (accelerator pedal position) sensor 8 Electric throttle actuator 9 Brake lamp/brake test switch 10 Adaptive speed control radar sensor 11 Diagnostic socket 12 Instrument cluster 13 TCM (transmission control module) 14 Adaptive speed control module  
 
 
SPEED CONTROL System Operation 
 
The speed control system uses inputs from the brake lamp/brake test switch, the APP sensor, the ECM and the ABS module.  
Speed control is operated by the driver using only the steering wheel switches. When speed control is active, the ECM regulates the PWM (pulse width modulation) signals to the fuel injectors to adjust the fuel supply as required to maintain the 
set speed. 
 
During speed control operation, the ECM controls vehicle speed by adjusting fuel injection duration and timing. When the accelerator pedal is pressed with speed control active, the ECM outputs a calculated throttle angle signal in place of the actual throttle angle signals produced by the APP sensor. The calculated throttle angle is derived from fuel demand.  
The minimum set speed for speed control is 18 mph (30 (km/h). Speed control is automatically suspended if the following 
conditions apply: 
 
Vehicle speed falls below 18 mph (30 km/h) 
The brake pedal is pressed 
The cancel button is pressed 
Neutral, park or reverse gear is selected 
The difference between actual speed and the set speed is too great 
If the engine speed becomes near to the red line (maximum engine speed) 
If the accelerator pedal is used to accelerate beyond the set speed for too long. 
 
ADAPTIVE SPEED CONTROL 
The adaptive speed control system comprises the following components: 
Adaptive speed control sensor 
Adaptive speed control module 
Steering wheel control switches 
ECM 
Electric throttle actuator  
ABS module and pump Adaptive speed control warning indicator. 
 
The adaptive speed control system uses a forward looking radar sensor to scan the road ahead, looking for objects that are 
moving at a different rate to itself. When a target is identified the adaptive speed control system will monitor the time gap 
between it and the target vehicle. When that gap falls below a set driver selected level the adaptive speed control system will 
intervene slowing the vehicle by backing off the throttle and/ or applying the brakes, until the correct gap is attained. The 
driver can chose between four gap settings, 1, 1.4, 1.8 and 2.2 seconds. 
The system will detect but not react to the following: 
Vehicles in the oncoming lane 
Stationary vehicles 
Pedestrians 
Vehicles not in the same lane. 
 
Adaptive speed control is active when the vehicle is moving. Adaptive Speed Control only functions when a set speed is 
entered in normal speed control mode. The adaptive speed control system only intervenes with the set speed when it detects 
a target vehicle, and then only if the minimum time gap is breached. 
 
It is important to note that the system is intended for use in limited driving situations, does not remove control and 
responsibility from the driver, and at all times can be quickly overridden. The adaptive speed control system is not a collision 
warning system and will not react to stationary objects. The system does not operate below a minimum speed of 
approximately 30 km/h (20 mph) since it is unsuitable for use in cities or congested traffic. The system is best suited to main 
roads/ highways with gradual bends. 
The ECM, throttle body and throttle control are unchanged from those used for non adaptive speed control variants.  
The adaptive speed control system is based on the use of a front mounted radar sensor. The sensor transmits a 1.5° wide 
beam forward of the vehicle and detects the returning signals reflected off other vehicles and objects ahead. 
The 1.5° wide radar beam is mechanically scanned at a rate of 10 sweeps/second across a total arc of 15° centered on the