BR–86 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) DTC 25 27 TRAC Actuator Solenoid Circuit CIRCUIT DESCRIPTION The TRAC actuator solenoid operates in accordance with signals from the ECU and raises the fluid pressure in and releases it from the brake cylinders. DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area 25 Conditions (1) and (2) continue for 0.05 sec. or more: (1) TRAC solenoid relay terminal (TSR) voltage: Battery positive voltage (2) Voltage oS & TRAC ECU terminal AB SMC: 0 V TRAC actuator Open or short in SMC circuit ECU 27 Conditions (1) and (2) continue for 0.05 sec. or more: (1) TRAC solenoid relay terminal (TSR) voltage: Battery positive voltage (2) Voltage of ABS & TRAC ECU terminal SRC: 0V TRAC actuator Open or short in SRC circuit ECU Fail safe function: If trouble occurs in this solenoid circuit, the ECU cuts off current to the ABS and TRAC solenoid relays and prohibits ABS and TRAC control. WIRING DIAGRAM R TRAC Solenoid 1 Relay (R/B No.5) 6 B-R 18 B-R 1 TSR 2 IB6 ABS 4 V-Y 13 V-Y 12 R- No.1 IB6 A20 R/B No.2 ALT 3 5 TRAC OFF Indicator Light Monitor m W-B 3 1 V 11 V 2 SMC Battery R-W IB2 A23 4 2V-Y 10 V-Y 8 SRC IB2 A23 TRAC Actuator ABS & TRAC ECU 12 V RO7069