TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
Display Group 062
NOTE: The engine control module converts the voltage readings from the angle senders into percentages of 5 V and displays them as percentages. (A
supply voltage of 5 V is equivalent to 100%.)
-
Observe display zones 1 and 2.
-
Slowly depress accelerator to full throttle position.
The percentage value in display zone 1 should rise steadily between 3 and 93 % but without covering the full range of values.
The percentage value in display zone 2 should fall steadily between 97 and 3 % but without covering the full range of values.
NOTE:
-
The reason why the value in display zone 1 rises and the value in display zone 2 falls is because the potentiometers (angle sensors) in the throttle
valve control module work in opposite directions.
-
The percentage value for the first potentiometer increases as the voltage rises toward 5 V because the voltage at this potentiometer increases as the
throttle valve opens.
-
The percentage value for the second potentiometer decreases as the voltage drops away from 5 V and toward 0 V because the voltage at this
potentiometer decreases as the throttle valve opens.
-
Press the <- arrow button to exit from the function "08 - Read data block".
If the display values do not appear as described:
-
Test voltage supply and wiring to throttle valve control module. Pay particular attention to the connectors, which may have corroded or become
detached.
-
Test accelerator position sensors.
Testing voltage supply to throttle valve control module
-
Unplug connector from throttle valve control module.
-
Switch ignition on.
-
Connect multimeter (voltage measurement range) as follows:
Connector
Specification
Contact
2 + Ground
approx. 5 V
2 + 6
approx. 5 V