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4-18 FI SYSTEM DIAGNOSIS
DEALER MODE
The defective function is memorized in the computer. Use the special tool’s coupler to connect to the dealer
mode coupler. The memorized malfunction code is displayed on LCD (DISPLAY) panel. Malfunction means
that the ECM does not receive signal from the devices. These affected devices are indicated in the code
form.
09930-82720: Mode select switch
Before checking the malfunction code, do not disconnect the ECM lead wire couplers.
If the couplers from the ECM are disconnected, the malfunction code memory is erased and the
malfunction code can not be checked.
MALFUNCTION
LCD (DISPLAY)
INDICATION
FI LIGHT INDICATION INDICATION MODE
“NO” C00
FI light turns OFF.
----
“YES”
C**code is indicated from
small numeral to large
one.
For each 2 sec., code is
indicated.