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HOMESERVICE MANUALSHYUNDAI2009SONATA SE, 3.3 FREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (FUEL SYSTEM) - 3.3LETC (ELECTRONIC THROTTLE CONTROL) SYSTEMSCHEMATIC DIAGRAMFAIL-SAFE MODE
2009 Hyundai Sonata SE, 3.3 F

Fail-safe mode

2009 Hyundai Sonata SE, 3.3 FSECTION Fail-safe mode
FAIL-SAFE MODE

Mode Description Symptom Possible Cause
MODE1 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 Forced idle state and no response for accelerator activation
  • 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
  1. Engine power varies with accelerator position, but driver perceives lack of engine power.
  2. 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

NO RELATED

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