Hyundai Sonata: Engine Electrical System / Ignition System

Troubleshooting
Troubleshooting Ignition System SymptomSuspect AreaRemedyEngine will not start or is hard to start (Cranks OK)Ignition lock switchInspect ignition lock switch, or replace as requiredIgnition c ...

Description and Operation
Description Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are pre-pro grammed i ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: ETC (Electronic Throttle Control) System Repair procedures
Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T. Specification: Refer to “Specification” ETC Motor 1. Turn the ignition switch OFF. 2. Disco ...

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Teaching Procedures 1. Key Teaching Procedure Key teaching must be done after replacing a defective PCM(ECM) or when providing additional keys to the vehicle owner. The procedure starts with an PCM(ECM) request for vehicle specific data (PIN code: 6digits) from the tester. The "virgin" PCM ...

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