Nissan Note [1628/1872] Ec 1628

Nissan Note [1628/1872] Ec 1628
EC-1628
[K9K]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
PFP:00028
Introduction
BBS0040I
The ECM controls the display on the instrument panel of certain information relating to the operation of the
engine.
Four functions are involved here: The OBD malfunction indicator [MI(Yellow)] for the EOBD (European On
Board Diagnostics), the pre/post heating, the engine coolant temperature and engine malfunction [MI(Red)].
These four functions are represented by four lights given out by the ECM
PRE/POST HEATING LAMP
This lamp indicates that the pre-heating has been activated.
ENGINE COOLANT TEMPERATURE LIGHT
This light is used as an indicator of engine overheating.
In the event of overheating, it is up to the driver whether to stop the vehicle or not.
OBD LIGHT
The OBD malfunction indicator [MI(Yellow)] is used to alert the driver to the existence of engine control system
malfunctions involving excessive pollution or if the EOBD system is deactivated.
The ECM makes a request for lighting of the MI(Yellow) only where there is a malfunction present at the end of
three consecutive cycles.
The 3-second visual check upon powering up (automatic test procedure controlled by the IPDM E/R) is per-
formed by the ECM.
In the event of a confirmed OBD malfunction by lighting of the OBD light, no flashing of the light must be
observed following the lighting test.
DTCs Causing MI to Light
ENGINE WARNING LIGHT
In the event of an engine malfunction, the ECM may request the display of an engine warning light [MI(Red)].
How to Erase DTC
BBS004UN
With CONSULT-II
The DTC in the ECM can be erased by selecting “ERASE” in the “SELF-DIAG RESULTS” mode with CON-
SULT-II.
DTC Description Characterization Reference page
P0201
Cylinder 1 injector control circuit
(Open circuit)
(Short circuit)
CC
CO
EC-1745, "
DTC P0201 - P0204
FUEL INJECTOR"
P0202
Cylinder 2 injector control circuit
(Open circuit)
(Short circuit)
CC
CO
EC-1745, "
DTC P0201 - P0204
FUEL INJECTOR"
P0203
Cylinder 3 injector control circuit
(Open circuit)
(Short circuit)
CC
CO
EC-1745, "
DTC P0201 - P0204
FUEL INJECTOR"
P0204
Cylinder 4 injector control circuit
(Open circuit)
(Short circuit)
CC
CO
EC-1745, "
DTC P0201 - P0204
FUEL INJECTOR"
P0400
EGR volume control valve
(EGR volume control valve blocked open)
4.DEF
EC-1791, "
DTC P0400 EGR
FUNCTION"
P0403
EGR volume control valve
(Open circuit or short circuit to ground)
CO.0
EC-1795, "
DTC P0403 EGR
VOLUME CONTROL VALVE"
P0487
EGR volume control valve control position sensor circuit
(Open circuit or short circuit to ground)
(Short circuit to +12V)
CO.0
CC.1
EC-1805, "
DTC P0487 EGR
VOLUME CONTROL VALVE
CONTROL POSITION SEN-
SOR"
P062F
ECM
(Reading to EEPROM memory)
2.DEF EC-1828, "DTC P062F ECM"

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