Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
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Switch Fluke 83 Multimeter to resistance range
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Measure throttle valve positioner resistance between connector terminals 1 + 2.
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Specification: 3 to 200 Ohms
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Check Throttle Body Control Module Voltage supply and wiring to Control Module.
If NO malfunction detected:
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Replace Throttle Body Control Module J338.
Evaluating Display group 55
Significance of 4 position Display
Significance of 4 position Display
Throttle Position sensor G69, checking
Test conditions
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Coolant temperature at least 85 °C.
Test sequence
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Connect VAG 1551/1552 Scan Tool, See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting
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Switch ON ignition