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Eos (1F7) V6-3.2L (BUB) (2008)

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Testing and Inspection > Engine Coolant Temperature (ECT) Sensor (on Radiator) G83, Checking > Page 1026

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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Engine Coolant Temperature (ECT) Sensor G62, Checking

Engine Coolant Temperature (ECT) Sensor G62, Checking

CAUTION:

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Cooling system is under pressure.

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Danger of scalding when opening.

NOTE:  Use only gold-plated terminals when servicing terminals in the electrical harness connector of Engine Coolant Temperature (ECT) Sensor G62.

Special tools, testers and auxiliary items required

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Multimeter.

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jumper wire.

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Wiring diagram.

Test requirements

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The Engine Control Module (ECM) J623 fuses OK.

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Battery voltage at least 12.5 volts.

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All electrical consumers such as, lights and rear window defroster, switched off.

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Vehicles with automatic transmission, shift selector lever into position "P" or "N".

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A/C switched off.

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Ground (GND) connections between engine/transmission/chassis OK.

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Ignition switched off.

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Engine cold.

Test procedure

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Perform a preliminary check to verify the customers complaint.  See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Preliminary Check

Start diagnosis

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Connect the scan tool.

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Switch the ignition on.

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Using the scan tool, check the coolant temperature:

Diagnostic text

Specified value

Coolant temperature

Approx. coolant temperature

If the specified value is not obtained:

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Continue test according to the following table:

If the specified value was obtained:

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Start the engine and let it run at idle.

The temperature value must increase uniformly in increments of 1.0 degree C.

If the engine shows problems in certain temperature ranges and if the temperature does not climb uniformly, the temperature signal is intermittent.

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Replace the the Engine Coolant Temperature (ECT) Sensor G62.

Checking internal resistance

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Testing and Inspection > Engine Coolant Temperature (ECT) Sensor (on Radiator) G83, Checking > Page 1026

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