trip computer INFINITI QX4 2001 Factory Service Manual

SEC220B
Component DescriptionNBEC0271The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis LogicNBEC0272Malfunction is detected when ECM calculation function is
malfunctioning.
Possible CauseNBEC0518IECM
DTC Confirmation ProcedureNBEC0273NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 10 seconds
before conducting the next test.
SEF058Y
WITH CONSULT-IINBEC0273S011) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine.
4) Run engine for at least 30 seconds at idle speed.
5) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-445.
WITH GSTNBEC0273S02Follow the procedure ªWITH CONSULT-IIº above.
DTC P0605 ECM
Component Description
EC-444