Beetle L4-2.0L (AEG) (2000)
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Connect VAG 1598/22 Test Box to ECM harness connector.
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Check wiring for open circuit between Test Box and 2-pin harness connector using wiring diagram.
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G61:
Terminal 1 + socket 68, Terminal 2 + socket 67
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G66:
Terminal 1 + socket 60, Terminal 2 + socket 67
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Wire resistance: 1.5 Ohms maximum
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Check wiring at socket 67 for short to sockets 60 and 68.
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Specification: Infinity Ohms
If wiring OK
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Loosen knock sensor and re-torque to 20 Nm (15 ft lb).
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Take test drive and check VAG 1551/1552 Scan Tool display for knock control specified values using a second technician.
NOTE: Perform knock sensor checks during a test drive since knock sensor diagnosis is active at an engine speed greater than 2600 RPM and an
engine load greater than 3 ms.
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Observe appropriate safety precautions during test drive.
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Check DTC memory.
If malfunction still present:
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Replace knock sensors.
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Display Readiness. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Displaying Readiness Code", See: Computers and Control
Systems/Testing and Inspection
If DTC memory has been erased or ECM was disconnected from Battery + :
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Set Readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Setting Readiness Code", See: Computers and Control
Systems/Testing and Inspection