New Beetle L4-1.8L Turbo (AWV) (2005)
Knock Sensor: Testing and Inspection
Knock Sensors, Checking
NOTE:
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Contact surfaces between knock sensor and cylinder block must be free of corrosion, dirt and grease.
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For the Knock Sensors to function properly, it is important for tightening torque to be exactly 20 Nm.
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Use only gold-plated terminals when servicing terminals in harness connector of knock sensors.
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 connector test kit
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Wiring diagram
Test requirements
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Mounting bolts of knock sensors tightened to 20 Nm.
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Ignition switched off.
Test sequence:
Test procedure (only vehicles with engine code APH)
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Disconnect 2-pin connectors from knock sensors.
1. Knock Sensor (KS) 1 -G61-
2. Knock Sensor (KS) 2 -G66-
NOTE: Before disconnecting harness connectors, mark allocation to component.
Checking resistance
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Test resistance of knock sensors between terminals.
Specified value: Infinite Ohms