Jetta L4-2.0L (BEV) (2004)
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Disconnect 4-pin connector from Engine Coolant Temperature (ECT) sensor -G62- with Engine Coolant Temperature (ECT) sensor -G2- (arrow).
Vehicles with old connector shape
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Bridge terminals 1 + 3 of connector using the respective adapter cables and observe the indication on display.
Vehicles with new connector shape
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Bridge terminals 3 + 4 of connector using the respective adapter cables and observe the indication on display.
Continued for all connector shapes
If indication jumps to approx. 141.0 degrees C
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End diagnosis and switch ignition off.
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Replace Engine Coolant Temperature (ECT) sensor -G62- with Engine Coolant Temperature (ECT) sensor -G2-.
WARNING:
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The cooling system is under pressure.
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Danger of scalding when opening.
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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
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.
If indication remains at approx.-46.5 degrees C