Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned On

NOTE: If low tire pressure warning lamp flashes as shown, the system is normal.
Flash Mode A
Carry out transmitter wake up operation.
DIAGNOSTIC PROCEDURE
1.CHECK BCM CONNECTORS
2.CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 57 and ground.

Continuity should not exist.
Low tire pressure warning lamp stays on
Hazard warning lamps flashCooling fan
Description
The ECM controls the cooling fan corresponding to the vehicle speed, engine
coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 4-step control
[HIGH/MIDDLE/LOW/OFF].
COOLING FAN MOTOR
The cooling fan operates at each speed when the cu ...
Tire Pressure Monitoring System (TPMS)
This vehicle is equipped with the TPMS. It monitors
tire pressure of all tires except the spare.
When the low tire pressure warning light is lit and
the "Tire Pressure Low-Add Air" warning appears
in the vehicle information display, one or more of
your tires is significantly under-inflated. I ...
Power supply and ground circuit
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses of the AV control unit are not blown.
2.POWER SUPPLY CIRCUIT CHECK
Disconnect AV control unit connectors M152 and M156.
Check voltage between the AV control unit connectors M152
an ...