BR–71 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) DTC 13 14 ABS Motor Relay Circuit CIRCUIT DESCRIPTION The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU switches the motor relay ON and operates the ABS pump motor. DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area 13 Conditions (1) and (2) continue for 0.2 sec. or more: (1) ABS motor relay terminal (MR) voltage: Battery positive voltage (2) Motor relay monitor terminal (MT) voltage: O V ABS motor relay Open or short in ABS motor relay circuit ECU 14 Conditions (1) and (2) continue for 4 sec. or more: (1) ABS motor relay terminal (MR) voltage: O V (2) Motor relay monitor terminal (MT) voltage: Battery positive voltage ABS motor relay B+ short in ABS motor relay circuit ECU Fail safe function: If trouble occurs in the motor relay circuit, the ECU cuts off the current to the solenoid relay and prohibits ABS control.