Inspection Procedure

Check voltage between terminals Ts and CG of DLC3.
CHECK:
1. Turn the ignition switch ON.
2. Measure voltage between terminals Ts and CG of DLC3.
  
  Fig 1: Measuring Voltage At DLC3 Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK:

Voltage: 10 - 14 V
1. OK: If ABS warning light does not blink even after Ts and CG are connected, the ECU may be defective.
2. NG: Go to next step.
Check for open and short in harness and connector between brake actuator and DLC3, DLC3 and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG: Repair or replace harness or connector.
2. OK: Check and replace brake actuator ASSY.