Beetle L4-2.0L (AEG) (2000)
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Measure resistance between ECT sensor terminals 1 (ground) and 3 (signal).
Scale A shows resistance values for range 0 to 50 °C and scale B shows the values for temperature range 50 to 100 °C.
Examples:
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30 °C (range A) corresponds to a resistance of 1.5 to 2.0 k Ohms
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80 °C (range B) corresponds to a resistance of 275 to 375 Ohms
If specification not obtained
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Replace ECT sensor G62.
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Display the Readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes
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If DTC memory was erased or if the ECM was disconnected from Battery + , set the Readiness code. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If wiring OK and resistance measurement values OK
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Replace Engine Control Module.
With Generic Scan Tool
Engine Coolant Temperature (ECT) Sensor, Checking
NOTE: Use only gold-plated terminals when servicing terminals in harness connector of sensor.
Recommended special tools and equipment
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VAG 1526 multimeter or VAG 1715 multimeter
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VAG 1594 connector test kit
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Wiring diagram
Test requirements