Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSKIA2015SEDONA EXREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1235: PRIMARY PRESSURE SENSOR-ELECTRICALDTC INFORMATIONDTC DETECTING CONDITION

2015 Kia Sedona EX

DTC Information: DTC Detecting Condition

2015 Kia Sedona EXSECTION DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Voltage Monitoring	Defected Pressure Sensor(HECU integrated)
Enable Condition	Ignition "ON"
Threshold Value	Supply power is higher than 5.25 V or less than 4.75V for more than 60 msec. Sensor value(PRS1, PRS2) is less than 0.6 V or higher than 5.4V for more than 100 msec. Sum of Sensor value(PRS1, PRS2) is less than 4.4V or higher than 5.4V
Warning Indicator Lamp Status	ESC(ESP) Warning Indicator Lamp "ON"
Clear Condition	Ignition "OFF" and then "ON"

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.