A4 V6-3.0L (AVK) (2004)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
With Generic Scan Tool
Engine Coolant Temperature (ECT) Sensor -G62-, Checking
Recommended special tools and equipment
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VAG1526A multimeter
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VAG1594A connector test kit
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VAG1598/31 test box
Test requirements:
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Fuses for engine electronics OK
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Engine cold
Checking function
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Connect diagnostic tester. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic
Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Diagnostic Tester, Connecting
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Switch ignition on.
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In diagnostic function "33 - OBD", select "Mode 1: Checking measuring values."
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Select the desired measuring value "PID 05: Coolant temperature".
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Specified value: approx. ambient temperature
NOTE: If a temperature is indicated which differs greatly from ambient temperature of sensor, check sensor and sensor wires for contact resistances and
open circuit.
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Start engine and let run at idle.
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Specified value: Temperature value must rise evenly
NOTE:
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The temperature increases in increments of 1.0 degree C..