Signal Waveform & Data

WARNING: This page is about a different variant/trim than selected.

Highside (HS14) and Lowside (LS_1) signals of Cyl. 1 Injector during injection

Fig 1: Scantool Display - Signal Waveform And Data
Courtesy of HYUNDAI MOTOR AMERICA
1. Normal signal at the HIGHSIDE terminal (HS_14) while power supply to No. 1 & No. 4
2. Normal signal at the LOWSIDE terminal (LS_1) while No. 1 injector working
3. Normal signal at the LOWSIDE terminal (LS_4) while No. 4 injector not working
Normal operating signal of ECU HS_14, LS_1 and LS_4 during No. 1 Cyl. Injection

* PCM's HIGHSIDE control circuit (HS_14) is connected to No. 1 and No. 4 injectors together and PCM's HIGHSIDE control circuit (HS_23) is connected to No. 2 and No. 3 injectors together.