Beetle L4-1781cc 1.8L Turbo (APH) (1999)
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Check wiring for open circuit between test box and 6-pin connector according to wiring diagram.
Contact 4 + socket 5
Wire resistance: Max. 1.5 Ohms
If the specification is obtained:
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Check wire for open circuit between 6-pin connector contact 3 and fuel pump relay -J17- using wiring diagram.
Wire resistance: max. 1.5 Ohms
With Generic Scan Tool
Oxygen Sensor Heater For Oxygen Sensor Before Three Way Catalytic Converter (TWC), Checking
NOTE: When servicing terminals in harness connector of Heated Oxygen Sensor (HO2S), use only gold plated terminals.
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1594 connector test kit
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Wiring diagram
Test Requirements
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The respective fuses of Heated Oxygen Sensor (HO2S) -G39- must be OK.
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Ignition switched off.