Nissan Almera Tino V10. Manual — part 311
EC-70
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2.
Wait at least 10 seconds and then turn it “ON” (engine stopped) again.
3.
Change the diagnostic test mode from Mode II to Mode I by depressing the accelerator pedal. Refer to
EC-72, "HOW TO SWITCH DIAGNOSTIC TEST MODE"
.
●
If the battery is disconnected, the emission-related diagnostic information will be lost after
approx. 24 hours.
●
The following data are cleared when the ECM memory is erased.
–
Diagnostic trouble codes
–
1st trip diagnostic trouble codes
–
Freeze frame data
–
1st trip freeze frame data
–
System readiness test (SRT) codes
–
Test values
–
Others
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)
EBS00QGS
●
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”, EL-352.
●
Confirm no self-diagnostic results of NATS is displayed
before touching “ERASE” in “SELF-DIAG 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 procedures of NATS initialization and NATS ignition key ID registration, refer to
CONSULT-II operation manual, NATS.
Malfunction Indicator (MI)
EBS00QGT
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 “WARNING LAMPS”, EL-115
or see
.
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 four functions.
SEF515Y
SAT652J
ON BOARD DIAGNOSTIC (OBD) SYSTEM
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When there is an open circuit on MI circuit, the ECM can not warn the driver by lighting up MI when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system has trouble and MI circuit is open by means of
operating fail-safe function.
The fail-safe function also operate when above diagnoses except MI are detected circuit and demands the
driver to repair the trouble.
MI Flashing without DTC
If the ECM is in Diagnostic Test Mode II, MI may flash when engine is running. In this case, check ECM diag-
nostic test mode,
EC-72, "HOW TO SWITCH DIAGNOSTIC TEST MODE"
.
How to switch the diagnostic test (function) modes, and details of the above functions are described later,
72, "HOW TO SWITCH DIAGNOSTIC TEST MODE"
.
The following emission-related diagnostic information is cleared when the ECM memory is erased.
●
Diagnostic trouble codes
●
1st trip diagnostic trouble codes
●
Freeze frame data
●
1st trip freeze frame data
●
System readiness test (SRT) codes
●
Test values
●
Others
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.
Engine running
MALFUNCTION
WARNING
This is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MI will light up to inform the driver that
a malfunction has been detected.
The following malfunctions will light up or blink the MI in
the 1st trip.
●
“Misfire (Possible three way catalyst damage)”
●
“One trip detection diagnoses”
Mode II
Ignition switch in
“ON” position
Engine stopped
SELF-DIAGNOSTIC
RESULTS
This function allows DTCs and 1st trip DTCs to be read.
Engine running
HEATED OXYGEN SENSOR 1
MONITOR
This function allows the fuel mixture condition (lean or
rich), monitored by heated oxygen sensor 1, to be read.
Engine operating condition in fail-safe mode
Engine speed will not rise more than 2,500 rpm due to the fuel cut
EC-72
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:
●
It is better to count the time accurately with a clock.
●
It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
●
Always ECM returns to Diagnostic Test Mode I after ignition switch is turned “OFF”.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1.
Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2.
Repeat the following procedure quickly five times within 5 seconds.
a.
Fully depress the accelerator pedal.
b.
Fully release the accelerator pedal.
3.
Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MI starts
blinking.
4.
Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
How to Set Diagnostic Test Mode II (Heated Oxygen Sensor 1 Monitor)
1.
Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to
Test Mode II (Self-diagnostic Results)"
.
2.
Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
ECM will start heated oxygen sensor 1 monitoring from the bank 1 sensor for A/T models.
How to Switch Monitored Sensor From Bank 1 to Bank 2 or Vice Versa
1.
Fully depress the accelerator pedal quickly and then release it immediately.
2.
Make sure that monitoring sensor has changed by MI blinking as follows.
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1.
Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to
EC-72, "How to Set Diagnostic Test
Mode II (Self-diagnostic Results)"
.
2.
Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3.
Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
PBIB0092E
PBIB0093E
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-73
[QG (WITH EURO-OBD)]
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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
“WARNING LAMPS”, EL-115 or see
.
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
●
These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MI as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MI 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 MI illumi-
nates in diagnostic test mode II (SELF-DIAGNOSTIC RESULTS), it is a DTC; if two or more codes are dis-
played, 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.
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
)
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to
72, "HOW TO SWITCH DIAGNOSTIC TEST MODE"
.
●
If the battery is disconnected, the DTC will be lost from the backup memory after approx 24 hours.
●
Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
MI
Condition
ON
When the malfunction is detected.
OFF
No malfunction.
PBIA3905E
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