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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (PHEV) >> ETC (Electronic Throttle Control) System >> Troubleshooting >> Fail-Safe Mode
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Fail-Safe Mode

Item Fail-Safe
ETC Motor Throttle valve stuck at 7°
TPS TPS 1 fault Replace it with TPS 2
TPS 2 fault Replace it with TPS 1
TPS 1, 2 fault Throttle Angle (°) Throttle valve stuck at 7°
Duty (%)
  • TPS1: 13.37 ~ 19.37
  • TPS2: 80.63 ~ 86.63
Output Voltage (V)
  • TPS1: 0.67 ~ 0.97
  • TPS2: 4.03 ~ 4.33
APS APS 1 fault Replace it with APS 2
APS 2 fault Replace it with APS 1
APS 1, 2 fault Engine idle state
NOTE: When throttle value is stuck at 7°, engine speed is limited at below 1, 500rpm and vehicle speed at maximum 40 ~ 50 km/h (25 ~ 31 mph)