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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Active Hydraulic Booster (AHB) System Diagnosis (HEV)) >> DTC C2402: Motor Electrical >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage Monitoring
  1. Open or short of power supply circuit
  2. Blown fuse
  3. Faulty AHB ECU
Enable Conditions Case-1
  • When the voltage of Battery-2 < 4±0.5V is continued for 1sec
Case-2
  • When motor is not active, the monitoring voltage of the motor > 2±0.5V is continued for 1sec
Case-3
  • When motor is not active, the monitoring voltage of the motor < Specific Voltage is continued for 1sec
Case-4
  • After motor relay is switched OFF, ECU check malfunction of motor. If the time which the voltage of the motor is decreased is less than evaluation time, recheck is performed again for a maximum of three times. When the voltage of the motor is not normal even on the third recheck, the controller recognizes it as failure.
Fail Safe
  • EBD warning lamp and buzzer are activated.
  • "Stop! Check Brake!" message is displayed on LCD.
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