GTI V6-2.8L (BDF) (2002)
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Now measure resistance between terminals 1 + 2 at connector for knock Sensor (KS) 2 -G66-.
Specified value: Infinity Ohms
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Connect test box to control module wiring harness, connect test box for wiring test.
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For
Wiring Test
Knock Sensor (KS) 1 -G61-
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Check wires between test box and 3-pin connector for open circuits according to wiring diagram.
Terminal 2 + socket 106
Terminal 2 + socket 99
Terminal 3 + socket 108
Wire resistance: max: 1.5 Ohms
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Also check wires for short circuit to each other.
Specified value: Infinity Ohms
Knock Sensor (KS) 2 -G66-
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Now check wires between test box and 2-pin connector for open circuits according to wiring diagram.
Terminal 2 + socket 107
Terminal 2 + socket 99
Wire resistance: max: 1.5 Ohms
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Also check wires for short circuit to each other.
Specified value: Infinity Ohms
If no malfunctions are found in wires:
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Replace the respective knock sensor:
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Knock Sensor (KS) 1 -G61-, item 7
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Knock Sensor (KS) 2 -G66-, item 17
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
See: Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data