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HOMESERVICE MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM - G3.5 DOHCETC (ELECTRONIC THROTTLE CONTROL) SYSTEMTROUBLESHOOTINGFAIL-SAFE MODE
2011 Hyundai Santa Fe GLS, 3.5 G, AWD

Fail-Safe Mode

2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION Fail-Safe Mode
FAIL-SAFE MODE SYMPTOMS & CAUSES

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
  
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.