"Rear Antilock" Warning Light Comes On And Off - Toyota Hilux Surf 1993 Owner's Manual

"'REAR ANTILOCK" warning light comes on and off .
• Short circuit in wire harness between ECU terminal TS and data link connector 1 terminal Ts.
• Short circuit in wire harness between ECU terminal TC and data link connector 1 terminal Tc.
• Braking inefficient.
• Rear–Wheel Anti–Lock Brake System operates at ordinary braking.
• Rear–Wheel Anti–Lock Brake System operates just before stopping at
ordinary braking.
• Brake pedal pulsates abnormally while Rear–Wheel Anti–Lock Brake System
working.
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)
Try deceleration sensor operation diagno–
sis system. Is sensor OK ?(See page
BR–84)
Try speed sensor diagnosis system.
Is speed sensor OK ? (See page BR–84)
YES
Is speed sensor installed in place ? And is
installation bolt tightened securely ?
YES
Continued on page
BRAKE SYSTEM
YES
YES
BR–82
– Rear–Wheel Anti–Lock Brake System
See diagnostic trouble code.
(See page BR–75)
Faulty deceleration sensor or sensor installation
faulty.
Inspect speed sensor, and replace if necessary.
Speed sensor– installation faulty.
BR–81