Nissan Primera P12. Manual — part 296
BASIC SERVICE PROCEDURE
EC-369
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1.
Turn ignition switch ON.
2.
Select “PUMP LEARNT CLEAR” in “ACTIVE TEST” mode with
CONSULT-II.
3.
Touch “CLEAR” and wait a few seconds.
4.
Make sure that “CMPLT” is displayed on CONSULT-II screen.
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EC-370
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
PFP:00028
DTC and MI Detection Logic
EBS01533
When a malfunction is detected, the malfunction (DTC) and freeze frame data are stored in the ECM memory.
The MI will light up each time the ECM detects malfunction. For diagnostic items causing the MI to light up,
refer to
.
Diagnostic Trouble Code (DTC)
EBS01534
HOW TO READ DTC
The DTC can be read by CONSULT-II only.
With CONSULT-II
CONSULT-II displays the DTC in "SELF-DIAG RESULTS" mode. Example: P0117, P0335, P1260, etc. These
DTCs are prescribed by ISO15031-5.
(CONSULT-II also displays the malfunctioning component or system.)
HOW TO ERASE DTC
How to Erase DTC ( With CONSULT-II)
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.
Touch “ENGINE”.
3.
Touch “SELF-DIAG RESULTS”.
4.
Touch “ERASE”. (The DTC in the ECM will be erased.)
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELF-
DIAG RESULTS” mode with CONSULT-II.
Freeze Frame Data
EBS01535
The ECM records the driving conditions such as calculated load value, engine coolant temperature, engine
speed, vehicle speed and intake manifold pressure at the moment a malfunction is detected.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II. For
details, see
.
Only one set of freeze frame data can be stored in the ECM. If freeze frame data is stored in the ECM memory
and another freeze frame data occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Freeze frame data (along with the DTCs) are cleared when the ECM memory is erased. Procedures for clear-
ing the ECM memory are described in
.
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-371
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NATS (Nissan Anti-theft System)
EBS01536
●
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)
EBS01537
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
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 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
or see
.
Diagnostic Test Mode I - Malfunction Warning
SEF543X
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
.)
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-372
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Relationship Between MI, DTC, CONSULT-II and Driving Patterns
*1: When a malfunction is detected, MI
will light up.
*2: MI will not light up after ignition
switch is turned OFF.
*3: When a malfunction is detected for
the first time, the DTC will be stored
in ECM.
*4: Other screens except SELF-DIAG-
NOSTIC RESULTS & DATA MONI-
TOR (AUTO TRIG) cannot display
the malfunction. DATA MONITOR
(AUTO TRIG) can display the mal-
function at the moment it is detected.
*5: The DTC will not be displayed any
longer after vehicle is driven 40 times
(Driving pattern A) without the same
malfunction. (The DTC still remain in
ECM.)
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