Signal Circuit Inspection
WARNING: This page is about a different car, the 2017 Hyundai Tucson. However, it is still accessible from the selected car via links, so may be relevant.
- IG key "ON", Engine "ON".
- Perform "Oscilloscope" procedure in the "Vehicle S/W Management" with GDS.
- Set "WIPER & MIST SWITCH" on "AUTO".
- Measure the signal waveform between "Rain Sensor_LIN" terminal of "BCM" harness connector and chassis ground.
■ Reference data
- Does the measured signal waveform follow the reference data?
YES
- Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
→ Repair or replace as necessary, go to "Verification of Vehicle Repair " procedure.
NO
- If the voltage of measured signal waveform is the battery voltage level (about 12V),
→ Check for short to battery in the LIN line.
→ Check for open/poor connection in the LIN line.
- If the voltage of measured signal waveform is the ground voltage level (about 0V),
→ Check for short to ground the LIN line.
- Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.