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Home >> Volkswagen >> 2013 >> Passat TDI SE, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> 2.0L - Generic Scan Tool - Engine Code: CKRA >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Ambient Air Temperature Sensor Checking >> Checking Wiring
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Checking Wiring

-- Turn the ignition switch ON.

-- Connect a multimeter to terminals 1 and 2 of the Ambient Air Temperature Sensor -G17- electrical harness connector.

Specified value: near 5 V

-- Turn the ignition switch OFF.

If the specified value was Not obtained:

-- Remove the Instrument Cluster. Refer to the Repair Information.

-- Disconnect the Instrument Cluster harness.

-- Using a multimeter, Check the Ambient Air Temperature Sensor -G17- electrical harness connector terminals 1 and 2 to the Instrument Cluster electrical harness connector for an open circuit or a short. Refer to Wiring Diagrams for Pin locations.

Ambient Air Temperature Sensor -G17- electrical harness connector terminals: Instrument Cluster -J285- electrical connector T32 terminals:
1 20
2 19

Specified value: 1.5 Ω max.

If the specified value was Not obtained:

-- Check the wiring for an open, high resistance or short circuit to Battery (+) or 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 Instrument Cluster. Refer to the Repair Information.