Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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Measure sensor resistance between terminals 2 + 3 at connector to sensor.
Specified value: 730 to 1000 Ohms
Continuation for all vehicles
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Check sensor for short circuit between terminals 1 + 2 as well as 1 + 3.
Specified value: Infinity Ohms
If specified values are not obtained:
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Replace Engine Speed (RPM) Sensor -G28-, item no. 20 .
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If no DTC is found on sensor:
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Connect test box to control module wiring harness, connect test box for wiring test. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring
Test
Vehicles with engine code AHA
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Check wires between test box and 3-pin connector for open circuits according to wiring diagram.
Terminal 1 + socket 67
Terminal 2 + socket 63
Terminal 3 + socket 56
Wire resistance: max: 1.5 Ohms
Vehicles with engine code ATQ