Sienna AWD V6-3.3L (3MZ-FE) (2004)
Low Tire Pressure Indicator: Testing and Inspection
TIRE PRESSURE WARNING LAMP CIRCUIT
CIRCUIT DESCRIPTION
When the tire pressure decreases, according to the signal from the skid control ECU, the tire pressure warning lamp in the combination meter assy comes
on.
The tire pressure warning lamp also comes on when the tire pressure warning lamp signal becomes an open circuit.
HINT: Refer to the "TIRE PRESSURE WARNING LAMP CHART" in the "PRE-CHECK" for the tire pressure warning lamp.
Wiring Diagram