Gap Diagnostic IIDTool Pro - Normale or Service Position (L405, L494, L538, L359 2013+); Engine; Clear Adaption Values (L316, Petrol: L322, L319, L320)

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IIDTool
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nished.
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di󰀨erent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 airow 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di󰀨erentywheelsanddi󰀨erent
sensors, the ECU performs an adaption of the crankshaft position sensor. This in turn allows for
misre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.