Rear–Wheel Anti–Lock Brake System Works Inefficiently - Toyota Hilux Surf 1993 Owner's Manual

Rear–Wheel Anti–Lock Brake System works inefficiently.
Disconnect service connector and con–
nect the terminal Tc to E , of the data
link connector
1. (See page BR–73)
Does warning light show the diagnostic
normal code ?
(Ignition switch on)
YES
Is there battery positive voltage be–
tween ECU terminal STP and body
ground when depressing brake pedal ?
YES
Inspect actuator.
(See page BR–87)
BRAKE SYSTEM – Rear–Wheel Anti–Lock Brake System
See diagnostic trouble code.
(See page BR–75)
Open circuit in stop light switch and/or wire
harness.
BR–83