seat Workshop Repair Guides

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Coolant temperature pressure transmitter: test > < Test the throttle valve actuator and the actuator's potentiometer

Leon Mk2

Test voltage supply and the cables towards the control unit
Test voltage supply and the cables towards the control unit
   
–  Detach connector -1- from the throttle control unit -2-.
–  Attach the multimeter for voltage measurement to connector contacts 4+7.
–  Switch on the ignition Theoretical value: 4.5 V minimum
–  Switch off the ignition.
–  To measure voltage, attach the multimeter to connector contacts 3+7
–  Switch on the ignition Theoretical value: 9 V minimum
–  Switch off the ignition.
  N24-0304
–  Attach the test box -V.A.G. 1598/22- to the control unit cabling harness.
  N24-0709
–  Test for a break in the cables between the test box and the connector, using the wiring diagram. Contact 1 + female socket 59 Contact 2 + female socket 66 Contact 3 + female socket 69 Contact 4 + female socket 62 Contact 5 + female socket 75 Contact 7 + female socket 70 Contact 8 + female socket 74 Cable resistance: 1.5 Ω max.
–  Also test the cables for a short circuit between each other. Theoretical value: ∞ Ω.
If no fault is detected in the cables:
–  Test the engine control unit's voltage supply → Chapter.
  N24-0170

Coolant temperature pressure transmitter: test > < Test the throttle valve actuator and the actuator's potentiometer