Description of Activations

Description of activation

Hint: Not all the components/functions described need to be implemented in the control module. This varies between different systems and markets.

Parameters, value

Throttle angle (%)
Measurement range 0-100 %.
The engine control module (ECM) calculates the value from potentiometer 1 for the throttle position (TP) sensor. The value indicates the throttle opening.
If a fault is detected in the throttle position (TP) sensor, potentiometer 1 by the engine control module (ECM), the value from the throttle position (TP) sensor potentiometer 2 will be used to represent the throttle angle.
0 % = throttle shut.
100 % = throttle fully open.

Hint: The value must follow the parameter "Throttle angle, desired value" when the accelerator pedal (AP) is affected.

Throttle position (TP) sensor, potentiometer 1 (V)
The parameter can be read off to check the function when activating "Throttle unit".
Measurement range 0-80 V.
The engine control module (ECM) derives the value from potentiometer 1 for the throttle position (TP) sensor.
The value must increase with increased throttle angle.
Approximately 0.5 V = throttle closed.
Approximately 4.0 V = wide open throttle (WOT).

Throttle position (TP) sensor, potentiometer 2 (V)
The parameter can be read off to check the function when activating "Throttle unit".
Measurement range 0-80 V.
The engine control module (ECM) derives the value from potentiometer 2 for the throttle position (TP) sensor.
The value must decrease with an increased throttle angle.
Approximately 4.0 V = throttle closed.
Approximately 0.5 V = wide open throttle (WOT).

Component/function

Throttle unit

Note! The accelerator pedal must be pressed down at least 90% during the activation.

The throttle in the throttle unit opens depending on which activation has been selected (50, 75 or 100 %).
Read off "Throttle position sensor, potentiometer 1" or "Throttle position sensor, potentiometer 2" to check the function.
The engine must be switched off at activation.

Air conditioning (A/C) relay
The air conditioning (A/C) relay is activated and supplies power to the air conditioning (A/C) compressor's electromagnetic clutch.
There is an audible clicking sound from the air conditioning (A/C) relay and from the electromagnetic clutch of the air conditioning (A/C) compressor.

Engine cooling fan (FC)
The speed of the engine cooling fan (FC) changes depending on which activation is selected.
There is audible fan noise.

Leak diagnostic unit, valve
Certain markets only.
A clicking noise is heard from the valve in the leak diagnostic unit at activation.

Canister purge (CP) valve
The EVAP valve opens and closes at a specific frequency.
There is an audible clicking sound from the EVAP valve.

Turbocharger (TC) control valve
The turbocharger (TC) control valve opens and closes at a certain frequency.
The turbocharger (TC) control valve makes a clicking sound.