The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Toyota dealer.

If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately.Speed Sensor Rotor Faulty (C1237/37,C1275/75-C1278/78)
DESCRIPTION
The skid control ECU measures the speed of each wheel by receiving signals from
the speed sensor.
These signals are used for recognizing that all four wheels are operating properly.
Therefore, all wheel signals must be equal.
DTCs C1275/75 to ...
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition switch
is ON.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for cir ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT UNIVERSAL JOINT SPIDER ASSEMBLY
(a) Check the spider bearing axial play by turning the flange while holding
the shaft tightly.
HINT:
If necessary, replace the propeller with center bearing shaft assembly. ...