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 MANUALSKIA2020SOUL LX, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESABS/ESC DIAGNOSISDTC C1237-02: PRESSURE SENSOR - OTHERDTC INFORMATIONDTC DETECTING CONDITION

2020 Kia Soul LX, Standard Trans

DTC Information: DTC Detecting Condition

2020 Kia Soul LX, Standard TransSECTION DTC Detecting Condition

Item		Detecting Condition	Possible Cause
DTC Strategy	Case1	Noisy signal, offset, stick check	Electrical noise signal Abnormal pressure value due to residual air in brake system Faulty HECU
DTC Strategy	Case2	Voltage monitoring
Enable Condition		Ignition "ON" During vehicle operation condition No related DTC is stored
Threshold Value	Case1	ECU detects the failure under following conditions, master cylinder pressure is higher than 15bar, Accel pedal is higher than 5% and brake lamp switch OFF over 3s During driving more than 40km/h (24.9MPH) and stop 3 times, if master cylinder pressure is not changed During driving more than 40km/h (24.9MPH) and stop 3 times, if master cylinder pressure is higher than 10bar
Threshold Value	Case2	If the gradient of the sensor signal per 10ms is higher than 15bar when any control is not activated
Disable Condition	Case1	Ignition "OFF" and then "ON" and brake pressed (more than 1s) and brake released
Disable Condition	Case2	Ignition "OFF" and then "ON"
Warning Lamp		ESC(ESP)/DBC/AVH warning lamp "ON"
Failsafe		-

RENDER: 1.0x

NO RELATED

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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.