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Home >> Volkswagen >> 2012 >> Passat TDI SE, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - Generic Scan Tool - Engine Code: CKRA >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Can Bus Instrument Cluster To Data Bus OBD Interface, Checking >> Checking Wiring
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Checking Wiring

-- Remove the Engine Control Module - J623 -. Refer to the appropriate service information.

-- Using a multimeter, Check the Data Bus On Board Diagnostic Interface -J533- electrical harness connector to the Engine Control Module - J623 - electrical harness connector T32 for resistance.

Instrument Cluster Control Module -J285- electrical harness connector T32 terminals Data Bus On Board Diagnostic Interface -J533- electrical connector T20 terminals
29 18
30 8

Specified value: 1.5 Ω Max.

If the specified value was not obtained:

-- Check the wiring for a short circuit to Battery (+), or an open circuit.

-- Check the wiring connection for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring:

-- Replace the Instrument Cluster Control Module -J285-. Refer to the appropriate service information.