Hyundai Sonata LF: Emission Control System

Advanced Smart Cruise Control (ASCC) ECU Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Disconnect the ASCC ECU connector (A). 3. Remove the ASCC ECU (C) after remove the installation nut (B)...

General Information

Description and Operation Description Emissions Control System consists of three major systems. • Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Stop Signal Electronic Module Repair procedures

Inspection 1. Fuse inspection Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit. 2. Inspection of connector by each part Check to see whether or not each connector has been damaged, or terminal surge, or incomplete connection has taken place [Engine room junction box] [Stop signal electronic module] [ABS/VDC control module] 3...

Hyundai Sonata LF 2014-2019 Service Manual: A/C Pressure Transducer Description and Operation

Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor when the temperature of refrigerant line is very high or very low irregularly to optimize air conditioning system...