EC-894
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
*1: 1st trip DTC No. and 2nd trip DTC No. are the same as DTC No.
*2: This number is prescribed by ISO 15031-6.
DTC AND 1ST/2ND TRIP DTC
The number of 1st/2nd trip DTC is the same as the number of DTC.
When a malfunction is detected during 1st trip, 1st trip DTC is stored in the ECM memory. MI does not illumi-
nate at this time. When the same malfunction is detected in the next trip (2nd trip), 2nd trip DTC is stored in the
ECM memory and 1st trip DTC is cleared from the ECM memory. MI does not illuminate at this time. In addi-
tion, DTC is stored in the ECM memory and MI lights up when the same malfunction is detected during the fol-
lowing consecutive trip (3rd trip).
The procedure for erasing DTC, 1st trip DTC, and 2nd trip DTC from the ECM memory is described in EC-895,
"HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st/2nd trip DTC are displayed, Refer to EC-892, "
Emission-related Diagnostic Infor-
mation" .
1st/2nd trip DTC is specified in Mode 7 of ISO15031-5. 1st/2nd trip DTC detection occurs without lighting up
MI and therefore does not warn the driver of a malfunction.
When 1st/2nd trip DTC is detected, check, print out or write down, and erase 1st/2nd trip DTC as specified
with step II of Work Flow, refer to EC-902, "
WORK FLOW" . Then perform DTC Confirmation Procedure or
Overall Function Check to try to duplicate the malfunction. If the malfunction is duplicated, it is necessary to
investigate the cause again.
How to Read DTC and 1st/2nd Trip DTC
DTC and 1st/2nd trip DTC can be read by the following procedures.
With CONSULT-II
TCS C/U FUNCTN P1211 — —E C - 111 3
TCS/CIRC P1212 — —E C - 111 4
INJ ADJ RES/CIRC1 P1260××E C - 111 5
INJ ADJ RES/CIRC1 P1261××E C - 111 5
INJ ADJ RES/CIRC2 P1262××E C - 111 5
INJ ADJ RES/CIRC2 P1263××E C - 111 5
INJ ADJ RES/CIRC3 P1264××E C - 111 5
INJ ADJ RES/CIRC3 P1265××E C - 111 5
INJ ADJ RES/CIRC4 P1266××E C - 111 5
INJ ADJ RES/CIRC4 P1267××E C - 111 5
INJECTOR 1 P1268 — —EC-1121
INJECTOR 2 P1269 — —EC-1121
INJECTOR 3 P1270 — —EC-1121
INJECTOR 4 P1271 — —EC-1121
FRP RELIEF VALVE P1272××EC-1127
FUEL PUMP P1273××EC-1134
FUEL PUMP P1274 —×EC-1139
FUEL PUMP P1275 —×EC-1144
NATS MALFUNTION P1610 - P1617 — —EC-896
APP SENSOR P2135 — —EC-1149
INJ PWR/CIRC P2146××EC-1155
INJECTOR/CIRC P2147××EC-1160
INJECTOR/CIRC P2148××EC-1160
INJ PWR/CIRC P2149××EC-1155
BARO SEN/CIRC P2228××EC-1167
BARO SEN/CIRC P2229××EC-1167
Items
(CONSULT-II screen item) DTC*1 *2
(CONSULT-II, GST )1st/2nd
trip DTCMI lighting
upReference page
EC-896
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
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)EBS01177
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 NATS (Nissan Anti-Theft System) in BL section.
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.
Malfunction Indicator (MI)EBS01178
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 DI-33, "WARNING LAMPS"
or see EC-1202 .
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.
SEF543X
SAT652J
EC-1224
[YD (WITHOUT EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
NATS (Nissan Anti-theft System)EBS011XB
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 NATS (Nissan Anti-Theft System) in BL section.
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.
Malfunction Indicator (MI)EBS011XC
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 DI-33, "WARNING LAMPS"
or see EC-1498 .
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 DI-33,
"WARNING LAMPS" or see EC-1498 .
Diagnostic Test Mode I - Malfunction Warning
SEF543X
SAT652J
Diagnostic Test
ModeKEY and ENG.
Sta tusFunction Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK This function checks the MI bulb for damage (blown, open
circuit, etc.).
If the MI does not come on, check MI circuit. (See EC-
1498, "MI & DATA LINK CONNECTORS" .)
Engine running MALFUNCTION
WARNINGThis 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.
SRS-24
TROUBLE DIAGNOSIS
Trouble Diagnosis without CONSULT-IIEHS000OA
DIAGNOSTIC PROCEDURE 4
CAUTION:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1. Turn ignition switch ON.
2. After “AIR BAG” warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
3. Wait more than 3 seconds.
4. Repeat the steps 1 to 3 two times.
5. Turn ignition switch ON.
6. Compare the number of flashes to Air Bag Warning Lamp Flash Code.
7. Turn the ignition switch OFF, and disconnect both battery cables.
8. Repair the system as outlined by the “REPAIR ORDER” in “Warning Lamp Flash Code Chart” that corre-
sponds to flash code.
9. After the repairing of malfunction, connect both battery cables, and turn the ignition switch ON.
10. Check that no malfunction is detected.
NATS (NISSAN ANTI-THEFT SYSTEM)
BL-109
C
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MA
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BL
System DescriptionEIS001RR
NATS (Nissan Anti-Theft System) has the following immobilizer functions:
Since only NATS ignition keys, whose ID Nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, a vehicle operation without registered key in NATS is prevented by NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
This version of NATS has dongle unit to improve its anti-theft performance (RHD models). Dongle unit has
its own ID which is registered into NATS IMMU. So if dongle unit is replaced, initialization must be carried
out.
When malfunction of dongle unit is detected:
The security indicator lamp illuminates for about 15 minutes after ignition switch is turned to ON.
–When dongle unit has a malfunction and the indicator lamp is illuminated, engine can not be started. How-
ever engine can be started only one time when security indicator lamp turns off in about 15 minutes after
ignition switch is turned to ON.
All of the originally supplied ignition key IDs have been registered in NATS.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
The security indicator blinks when the ignition switch is in “OFF” or “ACC” position. Therefore, NATS
warns outsiders that the vehicle is equipped with the anti-theft system.
When NATS detects trouble, the security indicator lamp lights up as follows.
NATS trouble diagnoses, system initialization and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
When NATS initialzation has been completed, the ID of the inserted ignition key is auto matically registerd
in NATS. Then, if necessary, additional registration of other NATS ignition key IDs can be carried out.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-
II operation manual, NATS.
When servicing a malfunction of the NATS (indicated by lighting up of Security Indicator Lamp) or
registering another NATS ignition key ID No., it may be necessary to re-register original key identi-
fication. Therefore, be sure to receive ALL KEYS from vehicle owner.
Condition IGN ON andWith dongle Without dongle
Security indicator Security indicator
NATS malfunction (except dongle unit) is
detected1. 6 times blinking
2. Staying ON after ignition switch is turned
ONStaying ON
Only malfunction of dongle unit is
detected.Staying ON for about 15 minutes after igni-
tion switch is turned ON—
Malfunction of NATS and engine related
parts are detected.1. 6 times blinking
2. Staying ON after ignition switch is turned
ONStaying ON
Only engine related part malfunction is
detected.——
Just after initialization of NATS 6 times blinking —
BL-120
NATS (NISSAN ANTI-THEFT SYSTEM)
*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
*: When the vehicle is equipped with a dongle unit (RHD models), the security indicator blinks 6 times just after the ignition switch is
turned to ON. Then the security indicator lights up while the ignition key is in the “ON” position.
Security indicator
lighting up*
Engine cannot be
startedLOCK MODEPROCEDURE 7
(BL-129 )LOCK MODEWhen the starting opera-
tion is carried out five or
more times consecu-
tively under the follow-
ing conditions, NATS will
shift the mode to one
which prevents the
engine from being
started.
Unregistered ignition
key is used.
IMMU or ECM's mal-
functioning.
MIL staying ON
Security indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(BL-118 )Engine trouble data and
NATS trouble data have
been detected in ECM— SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART NO.
OF ILLUSTRATION ON
SYSTEM DIAGRAM