Approximately five hours after the engine is turned off, you may hear sound coming from under the vehicle for several minutes. This is the sound of a fuel evaporation leakage check and, it does not indicate a malfunction.
Main Owner’s Manual
Accessories, spare parts and modification of your ToyotaAir Outlet Damper Control Servo Motor Circuit (B1443)
DESCRIPTION
The damper servo sub-assembly (mode damper servo) sends pulse signals to inform
the No. 1 air conditioning amplifier assembly of the damper position. The No. 1
air conditioning amplifier assembly activates the motor (normal or reverse) based
...
Open or Short in Master Cylinder Pressure Sensor (C1421,C1281,C1423,C1424)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
C1421
Either condition is met:
Both of the following conditions continue for at least 1.2 seconds.
The IG1 terminal volta ...