volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Throttle Position Sensor > < Power Steering Pressure Switch|Locations|Page 1222
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Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.

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Check wiring between test box and 2-pin connector for open circuit using wiring diagram.
Contact 1  + socket 49
Contact 2 + socket 50
Wire resistance: Max. 1.5 ohms

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Additionally check wires for short to one another.

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Additionally check wiring for short to battery positive or Ground.

If no wiring fault is detected:

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Replace engine electronics control module.

Throttle Position Sensor > < Power Steering Pressure Switch|Locations|Page 1222