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Home >> Kia >> 2012 >> Sedona EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> ETC (Electronic Throttle Control) System >> Troubleshooting >> Fail-Safe Mode
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Fail-Safe Mode

PROBLEM SYMPTOMS

Mode Symptom Possible Cause
(Mode 1) Forced Engine Shutdown
  • Engine stop
  • ETC system can't proceed reliable algorithm procedure
  • Fatal ECM internal programming error
  • Faulty intake system or throttle body
(Mode 2) Forced Idle & power Management
  • Forced idle state controlled by fuel quantity regulation and ignition timing adjustment
  • ETC system can't control engine power via throttle device
  • Disabled throttle control or broken throttle position information
(Mode 3) Forced Idle
  • No response for accelerator activation
  • Forced idle state
  • No information about the accelerator position

  • Broken APS 1 and 2, faulty A/D converter or internal controller
(Mode 4) Limit Performance & power Management
  • Engine power is determined by accelerator position and idle power requirement (Limited vehicle running)
  • ETC system can't securely control engine power
(Mode 5) Limit Performance
  • Engine power varies with accelerator position
  • Driver perceives lack of engine power.
  • MIL ON (Normal vehicle running)
  • Not reliable accelerator position signal or bad maximum power generation

  • Faulty APS, ignition voltage or internal controller
(Mode 6) Normal
  • Normal