Jetta Sedan V6-2.8L (BDF) (2003)
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Measure resistance between terminals 1 + 2, 1 + 3, and 2 + 3 at connectors to knock sensors.
Specified value: Infinity Ohms
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Connect test box to control module wiring harness, connect test box for wiring test.
See: Powertrain Management/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
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Check wires between test box and 3-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.
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 15 ,
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Knock Sensor (KS) 2 -G66-, item 11 .
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing
Diagnostic Trouble Codes
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Generate readiness code.
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
Checking resistances and wires (Vehicles with engine code BDF)