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 MANUALSHYUNDAI2013SANTA FE XL PREMIUMREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEM (ABS)/ELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1237: PRIMARY PRESSURE SENSOR-SIGNALDTC INFORMATIONDTC DETECTING CONDITION

2013 Hyundai Santa Fe XL Premium

DTC Information: DTC Detecting Condition

2013 Hyundai Santa Fe XL PremiumSECTION DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	Voltage Monitoring	External noise. Faulty pressure sensor
Enable Conditions	If input signal is noisy, Which the gradient of the sensor signal is larger than predefined value for specific times, ECU detect the failure Outside an ABS/ESC (ESP) control, And after normal operation of BLS, If the pressure sensor signal is higher than 20bar and BLS is low for 3sec, ECU detect the failure
Fail Safe	Inhibit the ESC (ESP) control and allow the ABS/EBD control The ESC (ESP) warning lamp is activated

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.