DTC C2402: Abs Motor Or Relay Failure: Condition
WARNING: This page is about a different car, the 2002 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when ABS motor voltage input is normal, but no signal is input to the ABS motor monitor line. When reference voltage of ABS motor is less than specified continuously for 49 msec or more, HECU starts monitoring ABS motor voltage for 84 msec from time when ABS motor relay is switched off. If ABS motor voltage is less than specification for 49 msec, and 1.8 seconds after driving ABS motor off, motor is reactivated for 1 second and above check is performed again. During second check, if ABS motor voltage is less than specified for 49 msec, HECU recognizes failure and stores DTC. Possible causes are:
- ABS hydraulic unit malfunction.
- Hydraulic and Electronic Control Unit (HECU) malfunction.