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Home >> Volkswagen >> 2012 >> 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 >> Charge Air Coolant Pump, Checking >> Checking Wiring

Checking Wiring

-- Using a Multimeter, Check the Charge Air Cooling Pump -V188- electrical harness connector terminals for resistance, Refer to applicable wiring diagram for fuse location and number.

Charge Air Cooling Pump -V188- electrical harness connector terminals Measure to:
1 Fuse, Refer to applicable wiring diagram for fuse location and number.
2 Engine Ground

Specified value: 1.5 Ω Max.

If the specified value was Not obtained:

-- Check the wiring connection for an open circuit, short circuit to Battery positive or Ground

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

-- If necessary, repair the faulty wiring connection and replace any open fuses.

-- Go to Final Procedures 

If the specified value was obtained:

-- Condition may be intermittent

-- Check the wiring for an open, high resistance or short to ground.

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

-- If necessary, repair the faulty wiring connection.

-- Check Freeze Frame data for conditions when the DTC set.

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

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

-- Go to Final Procedures 



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

-- Using a Multimeter, Check the Charge Air Cooling Pump -V188- electrical harness connector to the Engine Control Module - J623 - electrical harness connector T60 for an open circuit.

Charge Air Cooling Pump -V188- electrical harness connector terminals Engine Control Module - J623 - electrical harness connector T60 terminals.
3 36

Specified value: 1.5 Ω Max.

If the specified value was Not obtained:

-- Check the wiring connection for an open circuit, short circuit to Battery positive or Ground

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

-- If necessary, repair the faulty wiring connection.

-- Go to Final Procedures 

If the specified value was obtained:

-- Replace the Charge Air Cooling Pump -V188-. Refer to appropriate service information.

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