Hyundai Sonata LF Quiz
Body Electrical System

Troubleshooting

In this manual: Body Electrical System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
33steps
~198min
4/5difficulty
Done 0 of 33

Troubleshooting

Error Item Failure
Symptom		 Check Items Detailed Checks Related Parts/
Components
On-Screen Display TFT LCD Does Not Turn On
  1. Connecting Fixtures
  2. Components
  1. Check Connector Mounting
  2. Check B+, IGN and GND wiring.
  3. Check Components
 Connectors, Wiring, Fuses, Instrument Cluster
Warning Light Airbag Warning Lamp Malfunction
  1. Connecting Fixtures
  2. C-CAN
  3. Components
  1. Check Airbag + Signal (Connectors)
  2. Check C-CAN Signal (ACU4)
  3. Check FPC attachment inside the instrument cluster.
 ACU Connectors, Wiring, Fuses, Instrument Cluster
Mode Conversion Built-in Drive Mode Malfunction
  1. Connecting Fixtures
  2. Switch
  3. Components
  1. Check Switch Input (Connector)
  2. Check Switch Input Signal (Open or Short Circuit)
  3. Check Conversion Using Cluster Component
 Switch Connector, Cluster Wiring
Illumination Interior Illumination Brightness Cannot Be Adjusted.
  1. Connecting Fixtures
  2. Switch
  3. Components
  1. Check whether the light switch input signal reaches the connector
  2. Check ILL- and DETENT signals
  3. Check TAIL+ signal input
 Switch Connector, Cluster Wiring
Warning Sound No Warning Chime on Instrument Cluster
  1. Connecting Fixtures
  2. Car Speakers
  3. Components
  1. Check the speaker output connector
  2. Check the vehicle speakers
 Speaker connectors, instrument panel wiring
Fuel Gauge Incorrect fuel level gauge indication
  1. Connecting Fixtures
  2. Fuel Sender
  3. Components
  1. Check the fuel input and GND connectors. (Open, short circuit, or input resistance values)
  2. Check the fuel sender
 Fuel level sender connector, instrument panel wiring

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.