Jetta L4-2.0L (AEG) (2000)
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes
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Display readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If DTC memory has been erased or the Engine Control Module (ECM) was disconnected from permanent battery (B+) voltage, generate the
readiness code again. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If no sensor malfunction is detected:
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Remove wiper arms and plenum chamber cover.
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Connect VAG1598/22 test box to control module wiring harness.
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Check wiring between test box and 3-pin harness connector for open circuit according to wiring diagram.
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Terminal -1- + socket 67
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Terminal -2- + socket 63
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Terminal -3- + socket 56
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Wire resistance: max. 1.5 ohms
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Additionally check wires for short to one another.
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Terminal -1- + socket 63
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Terminal -1- + socket 56
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Terminal -2- + socket 67
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Specified value: Infinity ohms
If no malfunction is found in the wiring:
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Remove sensor and check sensor wheel for secure fit, damage and run-out.
NOTE: There is a larger gap on the sensor wheel. This gap is the reference mark and does not mean that the sensor wheel is damaged.
If no malfunction is detected on sensor wheel:
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Replace Engine Control Module (ECM).