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.Horn
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT LOW PITCHED HORN ASSEMBLY
(a) Apply battery voltage and check the operation of the low pitched
horn assembly according to the table below.
OK:
...
MIL Circuit
DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions
detected by the ECM. By turning the ignition switch to ON, power is supplied to
the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL.
...
Intake Manifold Runner Control Circuit Low (Bank 1) (P2009,P2010)
DESCRIPTION
The ECM activates the DC motor for the tumble control valve, which opens and
closes the tumble control valve. The ECM activates the DC motor based on engine
speed, coolant temperature, intake air temperature and other conditions.
D ...