Page 1323 of 2898
Engine Fuel & Emission Control SystemNJEC0602
SEF433Z
PRECAUTIONSYD
Engine Fuel & Emission Control System
EC-599
Page 1324 of 2898

SEF289H
PrecautionsNJEC0603+Before connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the
ECM because battery voltage is applied to ECM even if
ignition switch is turned off.
SEF881Y
+When connecting ECM harness connectors, push in both
sides of the connector until you hear a click. Maneuver the
lever until you hear the three connectors on the inside
click. Refer to the figure at left.
SEF291H
+When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
MEF040D
+Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-659.
SAT652J
+If MI illuminates or blinks irregularly when engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. If this does not correct the problem,
perform specified trouble diagnostic procedures.
+After performing each TROUBLE DIAGNOSIS, perform
ªDTC Confirmation Procedureº or ªOverall Function
Checkº.
The DTC should not be displayed in the ª DTC Confirma-
tion Procedureº if the repair is completed. The ªOverall
Function Checkº should be a good result if the repair is
completed.
PRECAUTIONSYD
Precautions
EC-600
Page 1327 of 2898
Engine Control Component Parts LocationNJEC0607For more details of ECM location, refer to ªELECTRICAL UNIT LOCATIONº in EL section (EL-517).
NEF340A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
Engine Control Component Parts Location
EC-603
Page 1328 of 2898
SEF894Y
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
Engine Control Component Parts Location (Cont'd)
EC-604
Page 1329 of 2898
NEF341A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
Engine Control Component Parts Location (Cont'd)
EC-605
Page 1330 of 2898
Circuit DiagramNJEC0608SEDANNJEC0608S01
HEC880
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
Circuit Diagram
EC-606
Page 1331 of 2898
HATCHBACKNJEC0608S02
NEF342A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
Circuit Diagram (Cont'd)
EC-607
Page 1332 of 2898
System DiagramNJEC0609
NEF343A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
System Diagram
EC-608