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HOMESERVICE MANUALSKIA2010RONDO LX, 2.7 6REPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM/ELECTRONIC STABILITY CONTROL (ABS/ESC) DIAGNOSISDTC C2402: MOTOR ELECTRICALGENERAL INFORMATIONDTC DETECTING CONDITION
2010 Kia Rondo LX, 2.7 6

General Information: DTC Detecting Condition

2010 Kia Rondo LX, 2.7 6SECTION DTC Detecting Condition
DTC C2402 DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Battery Voltage Monitoring
  • Open or short of power supply circuit (ABS2)
  • Faulty HECU
Case1 (Motor Relay Open or Motor Short to GND) Detect Mode
  • Outside the ABS control cycle
  • Inside the ABS control cycle
  • Diagnosis mode
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) Detect Mode
  • Outside the ABS control cycle
  • Diagnosis mode
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) Detect Mode
  • Initial Check
  • Outside the ABS control cycle
  • Diagnosis mode
  • Failure mode
Enable Conditions
  • After 1.8 sec from the time that motor relay is switched OFF, VMR > 4±0.5V continued for 1.8 sec, the failure is detected.
 -
Case4 (Motor Fuse Open) Detect Mode
  • Initial Check
  • Outside the ABS control cycle
  • Inside the ABS control cycle
  • Diagnosis mode
  • Failure mode
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
  • The ABS/ESC functions are inhibited.
  • The ABS/ESC warning lamps are activated and the EBD warning lamp is not activated.
  • Motor failure during the ABS control cycle (Case 1, 4) :

    Inhibit the ABS/ESC control of front wheels, allow the ABS/ESC control of rear wheels, and ABS/ESC warning lamps are switched on at the end of ABS control.
RENDER: 1.0x

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