Nissan Almera Tino V10. Manual — part 534
EC-962
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
4.
Touch “ERASE”. (The DTC in the ECM will be erased.)
With GST
The emission related diagnostic information in the ECM can be erased by selecting MODE 4 with GST.
1.
If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 5
seconds and then turn it ON (engine stopped) again.
2.
Select MODE 4 with GST (Generic Scan Tool).
●
If the battery is disconnected, the emission-related diagnostic information will be lost within 24
hours.
●
The following data are cleared when the ECM memory is erased.
–
Diagnostic trouble codes
–
1st trip diagnostic trouble codes
–
2nd trip diagnostic trouble codes
–
Freeze frame data
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
NATS (Nissan Anti-theft System)
EBS01384
●
If the security indicator lights up with the ignition switch in
the ON position or “NATS MALFUNCTION” is displayed on
“SELF-DIAG RESULTS” screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to EL-352, “NATS (NISSAN ANTI-THEFT SYSTEM)”.
●
Confirm no self-diagnostic results of NATS is displayed
before touching “ERASE” in “SELF-DAIG RESULTS” mode
with CONSULT-II.
●
When replacing ECM, initialization of NATS system and reg-
istration of all NATS ignition key IDs must be carried out
with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner.
Regarding the procedure of NATS initialization and NATS ignition key ID registration, refer to CON-
SULT-II operation manual, NATS.
MBIB0895E
SEF543X
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-963
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Malfunction Indicator (MI)
EBS01385
DESCRIPTION
The MI is located on the instrument panel.
1.
The MI will light up when the ignition switch is turned ON without
the engine running. This is a bulb check.
●
If the MI does not light up, refer to EL-115, “WARNING
LAMPS” or see
EC-1250, "MI & DATA LINK CONNECTORS"
.
2.
When the engine is started, the MI should go off.
If the MI remains on, the on board diagnostic system has
detected an engine system malfunction.
On Board Diagnostic System Function
The on board diagnostic system has the following two functions.
Diagnostic Test Mode I - Bulb Check
In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to EL-
115, “WARNING LAMPS” or see
EC-1250, "MI & DATA LINK CONNECTORS"
.
Diagnostic Test Mode I - Malfunction Warning
SAT652J
Diagnostic Test
Mode
KEY and ENG.
Status
Function
Explanation of Function
Mode I
Ignition switch in
ON position
Engine stopped
BULB CHECK
This function checks the MI bulb for damage (blown, open
circuit, etc.).
If the MI does not come on, check MI circuit. (See
1250, "MI & DATA LINK CONNECTORS"
.)
Engine running
MALFUNCTION
WARNING
This is a usual driving condition. When ECM detects a mal-
function, the MI will light up to inform the driver that a mal-
function has been detected.
MI
Condition
ON
When the malfunction is detected or the ECM's CPU is malfunctioning.
OFF
No malfunction.
EC-964
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
OBD System Operation Chart
EBS01386
RELATIONSHIP BETWEEN MI, 1ST/2ND TRIP DTC, DTC, AND DETECTABLE ITEMS
●
When the malfunction is detected for the first time, 1st trip DTC is stored in the ECM memory.
●
When the same malfunction is detected during 2nd consecutive trip, 2nd trip DTC is stored and 1st trip
DTC is cleared.
●
When the same malfunction is detected during 3rd consecutive trip, DTC and Freeze Frame Data are
stored and MI illuminates. Refer to
EC-958, "Three Trip Detection Logic and One Trip Detection Logic"
for
details.1st/2nd trip DTC are cleared from the ECM memory.
●
MI will go off after the vehicle is driven 3 consecutive times with no malfunction (driving pattern A).
●
1st/2nd trip DTC, DTC, and Freeze Frame Data will be stored until the vehicle is driven 41 times (driving
pattern B) without the same malfunction recurring. “TIME” data displayed in the “SELF-DIAG RESULTS”
mode of CONSULT-II shows the number of times the vehicle is driven without the same malfunction recur-
ring.
SUMMARY CHART
Refer to
for details of pattern A and B.
Items
Trip
Counter
Driving Pattern
MI (goes off)
3
2
A
DTC, Freeze Frame Data (clear)
41
40
B
1st/2nd Trip DTC (clear)
41
40
B
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-965
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RELATIONSHIP BETWEEN MI, DTC, 1ST/ 2NDTRIP DTC AND DRIVING PATTERNS
*1: CONSULT-II displays for DTC and
1st/2nd trip DTC become the same.
*2: 1st/2nd trip DTC becomes the same
display in mode7 of GST.
*3: When the same malfunction is
detected in three consecutive trips,
MI will light up.
*4: MI will go off after vehicle is driven 3
times (pattern A) without any mal-
functions.
*5: When the malfunction is detected for
the first time, 1st trip DTC is stored in
the ECM memory.
*6: When the same malfunction is
detected during 2nd consecutive trip,
2nd trip DTC is stored and 1st trip
DTC is cleared.
*7: When the same malfunction is
detected during 3rd consecutive trip,
DTC and Freeze Frame Data are
stored.
*8: The DTC and the freeze frame data
will not be displayed any longer after
vehicle is driven 41 times (pattern B)
without the same malfunction.
PBIB2048E
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