Land Rover Iidtool For Discovery 3 Britpart Manual

7
IIDTool
  Checking faults with an IIDTool BT or an IIDTool Pro
This button will allow exporting 
the fault list
When this button is pressed, 
the IIDTool will proceed with a 
fault scan (‘‘refresh’’)
This buttons clears faults
  Checking for faults using the Advanced Read function
This function allows fi ltering faults by selecting which status bits need to be set (equal to 1 or “ON”). 
In comparison, the regular read fault functions only show faults that are confi rmed. Upon entering the 
function, the...

8
IIDTool
  Reading the fault output
Faults (DTC – Diagnostic Trouble Codes) will be displayed in the standard format when available. If 
not available, they will be displayed in hexadecimal format. Fault code descriptors are in plain English.
Should a fault be displayed without the plain English descriptor, please contact us at:
[email protected] . 
We will provide the corresponding descriptor. 
Since the display does not have enough characters, the message may be scrolled through.
Example: 
1-...

9
IIDTool
For example:
   
Status bits defi nitions:
Status bit number and name Defi nition
0 : Test Failed Test failed in this or previous cycle(s).
1 : Test Failed This Cycle Cycle being the current key or operation cycle depending on the fault.
2 : Pending Test failed on the current or previous key or operation cycle.
3 : Confi rmed A fault is confi rmed at the time of the request when repeated detection 
over multiple operation cycles or for a defi ned period of time occurred. 
Only a clear fault will...

10
IIDTool
  Understanding diagnostic trouble codes (faults)
In order to diagnose problems effi ciently, it is important to understand DTC’s (diagnostic trouble codes 
or faults) structures, types and importance. 
Standard faults code prefi x defi nitions (for more details, please consult the ISO 15031 specifi -
cation).
•  Pxxxx, Powertrain: The powertrain systems cover functions that include engine, transmission 
and other drivetrain operations. 
•  Cxxxx, Chassis: The chassis systems cover functions that...

11
IIDTool
 
Diagnostic when multiple faults are present.
When a cascading effect is suspected to be present, the following diagnostic procedure shall be fol-
lowed.
•  Read and note the DTCs from every control modules. 
•  Troubleshoot and correct the P, C or B fault(s). 
•  Use the “Clear All” function of the IIDTool.
•  Drive the vehicle normally. This will “test” if the problem(s) is or are resolved.
•  Read faults once more to confi rm that none of the P, C or B faults came back. 
Faults with U prefi...

12
IIDTool
2.  Version
 Defi nition
This function shows the current fi rmware version in your IIDTool.
The IIDTool enters the top level menu at ‘Read Fault’ and displays the fi rmware version when the 
Speed + / Menu up button is pressed. The version can also be viewed using the updater software.
3.  Clear Fault 
 Defi nition
The Clear Fault functions will reset the fault list stored in the ECU(s) memory. Faults may still be pre-
sent or come back shortly after they have been cleared if the issue is not...

13
IIDTool
4.  Height
 Defi nition
For height changes, the function allows changing either front, rear, or all corners simultaneously. These 
changes will also affects the other modes as the standard mode is the reference point.  For example, 
if standard mode is lowered by 10mm, access mode, motorway, and off-road height will also be 10mm 
lower.
 
WARNING
The IIDTool allows changing of vehicle settings to a state out-
side of the original manufacturer specifi cation. It is the sole 
responsibility of...

14
IIDTool
 Adjust All
This allows changes to the height of the whole vehicle from its current calibration - all four corners 
simultaneously - at standard height. 
Values are changed up or down with the Speed + / Menu up and Speed - / Menu down buttons.
If two subsequent changes of -10mm are made, the vehicle will be -20mm (20mm lower) than the ori-
ginal height.
 Adjust Front 
Changes height of only the front axle in all modes. +10mm means the front will be 10mm higher in all 
modes.
 Adjust Rear...

15
IIDTool
GAP Diagnostic 7/15/2014 All right reserved
User manual: Version 8, Firmware V3.0
Land Rover Discovery 3/LR3, Range Rover Sport 2004-2009
 Limits
The EAS ECU has internal absolute limits that limit the extent of possible height changes. 
 
For example, if the current sensors calibration are
Sensor Calibration height value (mm)
Front Left 205
Front Right 200
Rear Left 195
Rear Right  183
 
And the limits of the EAS ECU are 
 
Sensor Limit Value (mm)
Upper Front  250
Upper Rear 250
Lower 150...

16
IIDTool
5.  Calibration
  Steering Angle Sensor ECU
Steering Wheel Angle Sensor Calibration
This routine will calibrate the steering angle sensor center position. 
 Preparations
•  Place the vehicle on a fl at and level surface. 
•  Ensure that your front wheels and steering wheel are straight before proceeding. 
 Use
This function is used when:
•  The steering angle sensor is replaced.
•  A wheels alignment is performed on the vehicle.
•  It may be required if parts of the steering system have been...