System Diagram

System Description
INPUT/OUTPUT SIGNAL CHART
Input

*: This signal is sent to the ECM via the CAN communication line.
Output

*: This signal is sent to the combination meter via the CAN communication line.
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination meter.
ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter via CAN communication.
When receiving the signal, the combination meter turns ON the fuel filler cap warning display.
CAUTION: Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
The fuel filler cap warning lamp tunes OFF, according to any condition listed below:
NOTE: MIL turns ON if a malfunction is detected in leak diagnosis results again at the trip after the fuel filler cap warning display turns ON/OFF.
Variable induction air system
On board diagnostic (OBD) systemOpening the fuel-filler door
The fuel-filler door automatically unlocks when
the driver's door is unlocked.
1. Unlock the fuel-filler door using one of the
following operations.
Unlock the driver's door with the Intelligent
Key.
Push the power door lock switch to the
unlock position.
Push the door handle re ...
Meter buzzer circuit
Description
The buzzer for warning chime system is installed in the
combination meter.
The combination meter sounds the alarm buzzer based on the signals
transmitted from various units.
Component Function Check
1. CHECK OPERATION OF METER BUZZER
Select "BUZZER" of "BCM" on CONSUL ...
Meter control switch
Removal and Installation
REMOVAL
Disconnect the negative battery terminal. Refer
to PG-67, "Removal and Installation (Battery)".
Remove the cluster lid A. Refer to IP-16,
"Removal and Installation".
Detach the combination meter control switch
harnes ...