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.
If you think something is wrong
Fuel pump shut off systemDisassembly
DISASSEMBLY
PROCEDURE
1. REMOVE SEAT ADJUSTER COVER CAP RH
(a) Using a screwdriver wrapped with protective tape, disengage the 3
claws and remove the seat adjuster cover cap RH.
Text in Illustration
*1
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2C, 2F and 2K main body ECU (driver side junction block assembly)
connectors.
(b) Measure the voltage and resistance according to the value(s) in the table ...
Front Occupant Classification Sensor LH Circuit Malfunction (B1780)
DESCRIPTION
The front occupant classification sensor LH circuit consists of the occupant
classification ECU and front occupant classification sensor LH.
DTC B1780 is recorded when a malfunction is detected in the front occupant classification
sensor LH c ...