Throttle Position (TP) Sensor -G69-
Locations:
On a gasoline engine the TP sensor is a component part of the Throttle Valve Control Module -J338-. It can be found on the throttle valve housing (engine).
On a Diesel engine the "throttle valve signal" is generated in the Throttle Position (TP) Sensor -G79- located near the accelerator pedal.
For On Board Diagnostic (OBD):
The TP sensor is one of the engine control module sensors. However, the transmission control module also requires the TP sensor signal. Therefore, the signal from the engine control module is transmitted to the transmission control module.
On vehicles with CAN-bus, the automatic transmission control module receives the TP signal from the CAN-bus.
On vehicles without CAN-bus the signal is made available via a wire from the engine control module.
The OBD of the transmission only checks the signal, not the TP sensor! On vehicles without CAN-bus the wire for the signal is also checked.
The signal can only be read in the Measured Value Block.
Refer to Measured value block, reading ; Display group numbers 001 and 003
Checking and adjusting or removing and installing throttle position (TP) sensor
Gasoline engine
Refer to 24 MULTIPORT FUEL INJECTION (MFI)
Diesel engine
Refer to 20 - FUEL SUPPLY