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Home >> Volkswagen >> 2014 >> 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 >> Power Supply Relay, Checking >> Checking Wiring
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Checking Wiring

-- Remove the engine control module. Refer to the service information for removal and installation procedures.

-- Using a multimeter, measure the resistance of the circuit between the power supply relay Power Supply Relay (terminal 30) -J317- and the Engine Control Module (ECM) -J623-. Refer to the applicable wiring diagram.

Power Supply Relay (terminal 30) -J317- electrical harness connector terminal T40 Engine Control Module (ECM) -J623- electrical connector T94 terminal
15 92
6 69

Specified value: 1.5 Ω Max.

If the specification was not obtained:

-- Check the wires for a short circuit to each other, a short to battery voltage, and a short to ground.

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

-- Repair as necessary.

If no malfunction is found in the wiring and voltage supply was OK:

-- Replace the engine control module Power Supply Relay (terminal 30) -J317-.

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