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Home >> Volkswagen >> 2013 >> Beetle Turbo, 2D Hatchback, 2.0L Eng VIN A, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - Generic Scan Tool - Engine Code: CBFA (Hatchback) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Engine Coolant Temperature Sensor 1 Or 2 Checking >> Checking Wiring
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Checking Wiring

-- Remove the Engine Control Module (ECM) -J623-. Refer to the Repair Information.

-- Using a multimeter, check the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit or a short to voltage, refer to the chart below.

Engine Coolant Temperature (ECT) Sensor - G62- electrical harness connector terminals: Engine Control Module (ECM) -J623- electrical connector T60 terminals:
1 57
2 14

OR

Engine Coolant Temperature (ECT) Sensor - G83- electrical harness connector terminals: Engine Control Module (ECM) -J623- electrical connector T94 terminals:
1 36
2 12

Specified values: 1.5 Ω Max. and 0 volts with key on and ECM disconnected.

If the specified value was Not obtained:

-- Check the wiring for an open or short circuit to voltage.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If the specified value was obtained:

-- Using a multimeter, check terminal 2 of the ECT sensor to engine ground.

Specified value: 1.5 Ω Max

If the specified value was Not obtained:

-- Check the wiring for an open circuit or high resistance.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If the specified value was obtained:

-- Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.



-- Remove the Engine Control Module (ECM) -J623- and disconnect the ECM connectors. Refer to the Repair Information.

-- Disconnect the ECT harness connector at the sensor.

-- Using a multimeter, check the signal circuit of the Engine Coolant Temperature (ECT) Sensor - G62 or 83- electrical harness connector terminal 1 to engine ground.

Specified value: OL or no continuity.

If the specified value was Not obtained:

-- Check the wiring for a short circuit to Ground.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If the specified value was obtained:

-- Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.

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