TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.099
BAT/Brakes, ABS & TRAC Systems100 / 167
p.101
DTC 58 TRAC Pump Motor Circuit — MK4 Supra Brakes, ABS & TRAC Systems, page 100
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BR–100 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) DTC 58 TRAC Pump Motor Circuit CIRCUIT DESCRIPTION This motor is used to apply hydraulic pressure for the rear wheel brakes during TRAC control. DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area 58 | Conditions (1) through (3) continue for 2 sec. or more: (1) TRAC motor relay: Normal (2) TRAC motor: OFF (3) Voltage of ABS & TRAC ECU terminal MTT: 4–8 V | TRAC pump motor Open in TRAC pump motor circuit ECU Fail safe function: If trouble occurs in this circuit, the ECU cuts off current to the TRAC solenoid relay and prohibits TRAC control. WIRING DIAGRAM Y TRAC Motor Relay (R/B No. 5) 1 4 G-B 14 IB6 G-B 14 TMR V-Y 13 IB6 V-Y 12 R– 3 R/B No.2 ABS No.2 3 LYN B 2 W-G 4 IB3 W-G 22 MTT Battery W-B 1 TRAC Pump Motor ABS & TRAC ECU 12 V A20 A20 12 V A20 R07060