Motronic ME 7
Accelerator Pedal Module
The accelerator pedal module is comprised of the
accelerator pedal and the accelerator position sensors
as one assembly.
Module Housing
The components of the accelerator pedal module are:
Stop Buffer (Manual
Transmission)
or
• Throttle Position (TP) Sensor G79
• Throttle Position (TP) Sensor G185
“Kickdown” Pressure
Element (Automatic
Transmission)
The redundant throttle position sensors are linear to
each other on different scales. Like the throttle drive
sensors, the duplicate sensors are for self-diagnosis.
Operation
The sensors provide an analog signal to the ECM
referencing accelerator position. The kickdown
function is also incorporated into the module.
If the driver activates the kickdown, the full-throttle
voltage of the accelerator pedal position senders is
exceeded. The ECM interprets this as a kickdown
and sends a signal theTransmission Control Module
(TCM) by way of the CAN data bus.
Housing Cover
and Sensors
8410_174
Substitute Function
If one of theTP sensors fail, the ECM relies on
the redundant sensor. If bothTP sensors fail, an
Emergency Running Mode is initiated.
Kickdown Range
Accelerator PedalTravel
5.0
G79
On Board Diagnostic
The ECM recognizes range/performance failures, as
well as signal plausibility checks.
G185
For more information regarding
electronic throttle control function
and adaptation, refer to SSP #842003,
Volkswagen ME 7.
0
20 % 40 %
60 %
80 % 100 %
Accelerator
Pedal Final Stop
DriverTorque Range
Full-Throttle Stop
(Mechanical)
8410_175
16
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