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HOMESERVICE MANUALSHYUNDAI2009SONATA SE, 3.3 FREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLESC (ELECTRONIC STABILITY CONTROL) SYSTEMTROUBLESHOOTING FOR DTCC1237 PRIMARY PRESSURE SENSOR-SIGNALDTC DETECTING CONDITION
2009 Hyundai Sonata SE, 3.3 F

C1237 Primary Pressure Sensor-Signal: DTC Detecting Condition

2009 Hyundai Sonata SE, 3.3 FSECTION DTC Detecting Condition
DTC DETECTING CONDITION AND POSSIBLE CAUSE

Item Detecting Condition Possible cause
DTC Strategy
  • Voltage Monitoring
  • Open or short of pressure sensor circuit
  • Faulty pressure sensor
  • Faulty HECU
Monitoring Period
  • After Pressure sensor initialization.
  • No under voltage
  • No pumps are running.
  • No BLS-signal is set.
Enable Conditions
  • The pressure sensor-offset value must be in the range of ± 15 bar. A failure is detected if this range is exceeded.
Fail Safe
  • Reduced function caused by faulty pressure sensor signal.
  • Sensor failure outside the ABS control cycle
    • Only the ABS/ESC functions are inhibited, allow the EBD. The ABS/ESC warning lamps are activated and the EBD warning lamp is not activated.
  • Sensor failure inside the ABS control cycle
    • Inhibit the ESC control, allow the EBD. The ESC warning lamps are activated. After the control, the ABS functions are inhibited. The ABS warning lamps are activated.
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