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HOMESERVICE MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEM (ABS)/ELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1235: PRIMARY PRESSURE SENSOR-ELECTRICALGENERAL INFORMATIONDTC DETECTING CONDITION
2011 Hyundai Santa Fe GLS, 3.5 G, AWD

General Information: DTC Detecting Condition

2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION DTC Detecting Condition
DTC DETECTION CONDITION AND POSSIBLE CAUSES

Item Detecting Condition Possible cause
DTC Strategy
  • Voltage Monitoring
  • Open or short of pressure sensor circuit
  • Faulty pressure sensor
  • Faulty HECU
Case 1 Monitoring Period
  • Continuous
Enable Conditions
  • A sensor supply failure is detected if Sensor Supply Voltage > 5.3V or Sensor Supply Voltage < 4.7V for t >=60ms.
Case 2 Monitoring Period
  • Continuous
Enable Conditions
  • A Fault is set if the DSO signal is voltage of DSO > 4.7V or voltage of DSO < 0.3V for a time t >= 100ms.
    • DSO : original pressure value.
Case 3 Monitoring Period
  • Continuous
Enable Conditions
  • A Fault is set if the DSI signal is voltage of DSI > 4.7V or voltage of DSI < 0.3V for a time t >= 100ms.
    • DSI : inverted pressure value.
Case 4 Monitoring Period
  • Continuous
Enable Conditions
  • A Fault is set if the voltage of DSO + DSI > 5.5V or voltage of DSO + DSI < 4.5V for a time t >= 100ms.
    • DSO : original pressure value.
    • DSI : inverted pressure value.
Case5 Monitoring Period
  • Once during Power Up
Enable Conditions
  • POS detects internal sensor malfunctions (sensor element, amplification, etc.). The POS is triggered if no low voltage is present and supply voltage is switched on. The test phase is divided in two 60 ms parts. DSO signal must be < 0.5V for 30 ms. In phase 2 DSO signal must be between 1.9V and 3.1V for also 30 ms then the POS Test is passed. The test phase is divided in two 60 ms parts. DSO and DSI signal must be < 0.5V for 30 ms. In phase 2 DSO and DSI signal must be between 1.9V and 3.1 V for also 30 ms then the POS Test is passed.

    A fault is set if POS does not satisfy the above conditions

    • POS : Power on self test.
Fail Safe
  • No Pressure Signal available.
  • 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.
RENDER: 1.0x

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