Hyundai Sonata LF 2014-2019 Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay block.
Power Relay (Type A)
Check for continuity between the terminals.
1)
Start relay
2)
Deicer relay
3)
Head lamp (high) relay
4)
Blower relay
5)
Powe ...
Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting
SymptomSuspect areaEngine will not start or stuggle to startVapor hose damaged or disconnectedEngine stuggle to startMalfunction of the Purge Control Solenoid ValveRough idle or engine stallsVapor hose damaged or disconnectedMalfunction of the PCV valveRough idleMalfunction of t ...