Golf GL L4-2.0L (AEG) (2001)
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Check wiring between test box and 2- pin harness connector for open circuit using wiring diagram.
-G61-:
-G66-:
Terminal -1- +
68
60
socket
Terminal -2- +
67
67
socket
Wire resistance: max. 1.5 ohms
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Also, check wires at socket 67 for short to sockets 60 and 68.
Specified value: Infinity ohms
If no malfunction is found in the wiring:
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Loosen knock sensor and tighten again to 20 Nm (15 ft lb).
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Perform road test again and check knock control specified values on display.
During the road test the following operating conditions must be fulfilled:
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Coolant temperature must exceed 80 °C
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When temperature is reached, operating conditions Idling, Part throttle, Wide Open Throttle (WOT), and Overrun must be attained several times
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At Wide Open Throttle (WOT) engine speed must exceed 3500 RPM
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Again, check DTC memory of control module.
If the malfunction is still present:
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Replace knock sensor/s -G61- or -G66-. See: Service and Repair
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes
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Display readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If the DTC memory has been erased or the Engine Control Module (ECM) was disconnected from permanent battery (B+) voltage, generate the
readiness code again. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes