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 MANUALSHYUNDAI2009TUCSON LIMITED, 2.0 BREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLESC (ELECTRONIC STABILITY CONTROL) SYSTEMTROUBLESHOOTING FOR DTCC2402 MOTOR FAILUREDTC DESCRIPTION

2009 Hyundai Tucson Limited, 2.0 B

DTC Description

2009 Hyundai Tucson Limited, 2.0 BSECTION DTC Description

The ABS ECU monitors the pump motor relay or fuse open, open or short in motor or motor lock and then sets this code if a malfunction is detected.

DETECTING CONDITION CHART

Item		Detecting Condition	Possible cause
DTC Strategy		Battery Voltage Monitoring	Open or short of power supply circuit (ABS1) Faulty HECU
Case1 (Motor Relay Open or Motor Short to GND)	Enable Conditions	If the motor relay is switched ON and motor voltage < (IGN voltage - 4V±0.5V) continued for 49msec, the failure is detected.
Case2 (Motor Lock)	Enable Conditions	After motor relay is switched OFF, VMR is measured. If the time which VMR > 1±0.1V is less than evaluation time, recheck is performed again for a maximum of three times. When VMR is not normal even on the third recheck, the controller recognizes it as failure.
Case3 (Motor Open, Motor Short to BATT)	Enable Conditions	After 1.8sec from the time that motor relay is switched OFF, VMR > 4±0.5V continued for 1.8sec, the failure is detected.
Case4 (Motor Fuse Open)	Enable Conditions	If the motor relay is switched OFF and VMRP (Motor power supply voltage) < 4±0.5V continued for 1sec, the failure is detected.
Fail Safe		ABS/ESC functions are inhibited, EBD function is allowed and the ABS/ESC warning lamps are activated.

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.