FUEL FILLER CAP WARNING SYSTEM : System Diagram
FUEL FILLER CAP WARNING SYSTEM : System Description
INPUT/OUTPUT SIGNAL CHART
Input
Unit/Sensor | Input signal to ECM | ECM function |
EVAP control system pressure sensor | Pressure in purge line | Fuel filler cap warning control |
Combination meter | Fuel level sensor signal* | |
Fuel filler cap warning reset signal* |
*: This signal is sent to the ECM via the CAN communication line.
Output
Unit | Output signal | Actuato |
ECM | Fuel filler cap warning display signal* | Combination meter |
*: This signal is sent to the ECM 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:
- When the reset operation is performed, the combination meter transmits a fuel filler cap warning reset signal to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display OFF) to the combination meter via CAN communication. When receiving the signal, the combination meter turns OFF the fuel filler cap warning display.
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.
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Uniform tire quality grading
DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 ...
Camshaft valve clearance
Inspection and Adjustment
INSPECTION
Perform inspection as follows after removal, replacement or installation of
camshaft or valverelated parts, or if
there are unusual engine conditions regarding valve clearance.
Remove rocker cover.
Measure the valve clearance with the following proced ...