Component Inspection

Electronic Stability Control

C1503 TCS/ESC (ESP) Switch Error - Component Inspection

Component Inspection

ESC switch Check
1. IG "OFF".
2. Disconnect the ESC switch connector.
3. Measure resistance between power terminal and signal terminal of the ESC switch connector.
4. Measure waveform between signal terminal of the wheel speed sensor harness connector and chassis ground with oscilloscope.

Specification : Approx. below 1 Ohms - (In case of pressing the ESC switch)
Approx. Infinity Ohms - (In case of not pressing the ESC switch)




5. Is the measured waveform within specifications?