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3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
NFEC1189S04
In this mode, the MIL on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to
“WARNING LAMPS”, EL-136 or see DTC P0650 MIL (CIRCUIT), EC-457.
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
NFEC1189S05
MIL Condition
ON When the malfunction is detected or the ECM’s CPU is malfunctioning.
OFF No malfunction.
I These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
NFEC1189S06
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test
mode I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the
MIL illuminates in diagnostic test mode II (SELF-DIAGNOSTIC RESULTS), it is a DTC; if two or more codes
are displayed, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These
unidentified codes can be identified by using the CONSULT-II or GST. A DTC will be used as an example for
how to read a code.
SEF952W
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC “0000” refers to no
malfunction. (See “TROUBLE DIAGNOSIS — INDEX”, EC-9.)
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
NFEC1189S0601
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to How
to Switch Diagnostic Test Mode.
I If the battery is disconnected, the DTC will be lost from the backup memory after approx 24 hours.
I Be careful not to erase the stored memory before starting trouble diagnoses.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Malfunction Indicator Lamp (MIL) (Cont’d)
EC-95
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