C0273

DTC C0273/13 Open or Short Circuit in ABS Motor Relay Circuit
DTC C0274/14 Short to B+ in ABS Motor Relay Circuit
DTC C1361/91 Short Circuit in ABS Motor Fail Safe Relay Circuit

DESCRIPTION
^ The ABS motor relays consist of the 2 semiconductor relays and are included in the J/B No. 2.
^ The ABS motor relay 1 is turned on after turning the ignition switch to the ON position. If the DTCs in the ABS pump motor circuit are memorized, the ABS motor relay 1 cuts off the power supply to the ABS motor relay 2 and performs the fail safe.
^ While any of the ABS, BA, TRAC and VSC is operating, the skid control ECU (included in the actuator) turns the ABS motor relay 2 on to operate the actuator pump motor.
^ If the voltage applied to the ABS motor relays (+BM) drops below the condition that detects the DTCs due to the shortage of the battery or alternator output, the DTCs may be memorized.

DTC DETECTION CONDITION:

WIRING DIAGRAM:

INSPECTION PROCEDURE

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