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GAP Diagnostic 2019-07-15 All Rights Reserved
User Manual : Version 33, Firmware V3.0
Normale or Service position
(L405, L494, L538, L359 2013+)
This routine will allow servicing the parking brake by moving the shoes. For L319-04 and L322-06, the
positions are set in the Control IO function.
Usage
Select Service position when servicing rear brakes and Normal when finished.
Preparation
•
Disengage the parking break
•
The ignition must be turned ON without the engine running.
4.7.4 Engine
Note :
For the service reminder reset routine, see Instrument Pack ECU (except for L316-12 and
L359 2013+).
Clear Adaption Values (L316, Petrol : L322, L319, L320)
This routine resets the adaption statistics back to factory default. In other words, after the engine adap-
tions are cleared, the engine ECU will have to “learn” the different sensors behaviours and compensate
accordingly.
Usage
The clear adaption routine is necessary when, for example but not limited to, one of these components
is replaced:
•
Idle speed control valve.
Over a period of time, the engine ECU adapts the position it sets the
idle speed control valve relative to the engine temperature, load and idle speed control valve
itself.
•
Throttle position sensor.
The engine ECU “learns” the closed position voltage delivered by the
throttle position sensor.
•
Heated oxygen sensors and airflow sensor.
The engine ECU will monitor and compensate for
deterioration of the Oxygen, MAF (Mass Air Flow) and other sensors over a period of time. It will
also monitor the current correction associated with these sensors.
•
Crankshaft position sensor.
Due to small variations between different flywheels and different
sensors, the ECU performs an adaption of the crankshaft position sensor. This in turn allows for
misfire detection.
• Etc.
CAUTION
The adaption reset procedure may cause the engine to behave erra-
tically over a period of time in cases where important sensors correc-
tions are needed. It will need a few drive cycles to get back to normal.
Summary of Contents for IIDTool Pro
Page 190: ...190 IIDTool Appendix...
