Component Inspection

Visual TPS
1. IG KEY "OFF". (Don't disconnect sensors.)
2. Select "vehicle scope meter" in the menu, and connect channel A, B of GDS with signal terminal TPS1,2 harness connector.
3. IG KEY "ON". And check the signal waveforms with stepping on accelerator pedal.
  Specification: Refer to SIGNAL WAVEFORM & DATA
  
  Fig 1: Measuring Signal Waveform Between ETC Motor And TPS
  Courtesy of HYUNDAI MOTOR CO.
4. Is the signal waveform within specifications?
  YES
  - Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between ECM and component thoroughly. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known - good ETC motor & TPS and check for proper operation. If the problem is corrected, replace ETC motor & TPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.