Test Point 3 - Throttle potentiometer
TEST POINT 3 - Throttle potentiometer Fault codes 1_15/1_16Possible Causes, Elimination, Remarks
Using System Tester 9288, the throttle angle may be read directly in the Actual values menu item.
If no plausible display is obtained, check power supply.
Connect test lead VW 1501 between throttle potentiometer and disconnected plug.
Connect voltmeter between lead No. 1 and No. 2.
Ignition on = display: approx. 5 V (Power supply of throttle potentiometer).
No display: Check according to wiring diagram
Display approx. 0.5 Volt.
Connect voltmeter to lead No. 2 and No. 3
Operate throttle. Voltage should now increase to approx. 4.3 Volt