volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Throttle Position Sensor > < Oxygen Sensor & O2 Sensor Regulation After Converter, Check|Page 4466
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Connect test box to control module wiring harness, connect test box for wiring test. Engine Control Module (ECM) is not connected.  See: Testing
and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring
Test

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Check wire between test box and 6-pin connector for open circuit according to wiring diagram.
Terminal 4 + socket 5
Wire resistance: max. 1.5 ohms

If no malfunctions are found in wires:

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Replace Engine Control Module (ECM).

Throttle Position Sensor > < Oxygen Sensor & O2 Sensor Regulation After Converter, Check|Page 4466