Kia Optima Hybrid: Engine Control System / NVLD(Natural Vacuum Leakage Detection) Schematic Diagrams

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / NVLD(Natural Vacuum Leakage Detection) Schematic Diagrams

Circuit Diagram

NVLD(Natural Vacuum Leakage Detection) Troubleshooting

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NVLD(Natural Vacuum Leakage Detection) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Disconnect the NVLD connector (A). 3. Disconnect the ventilation hoses (B,C). 4. Remove the NVLD after by loosening ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Auxiliary 12V Battery Description and Operation


Description 1. The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps. 2. Water never needs to be added to the maintenance-free battery. 3. The battery is completely sealed, except for small vent holes in the cover.     After disconnecting ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Active Air Flap(AAF) Troubleshooting


Troubleshooting SymptomsPossible CausesRemedyWarning illuminated"Check active air flap system"Active Air Flap System Fail(Flap stuck)• Inspect the flap and remove the foreign substance• Check the Active Air Flap assembly • Repair or replace as requiredActuator FaultReplace the actuatorMalfunction ...

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