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SEF093X
Component Description
NFEC1032
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
NFEC1033
DTC No.
Trouble diagnosis
name
DTC Detecting Condition Possible Cause
P0605
0605
Engine control module
A) ECM calculation function is malfunctioning.
I ECMB) ECM EEP-ROM system is malfunctioning.
C) ECM self shut-off function is malfunctioning.
FAIL-SAFE MODE
Detected items Engine operation condition in fail-safe mode
Malfunction A
I ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening
(approx. 5 degrees) by the return spring.
I ECM deactivates ASCD operation.
DTC Confirmation Procedure
NFEC1445
Perform “PROCEDURE FOR MALFUNCTION A” first. If the 1st
trip DTC cannot be confirmed, perform “PROCEDURE FOR
MALFUNCTION B”. If there is no problem on “PROCEDURE
FOR MALFUNCTION B”, perform “PROCEDURE FOR MAL-
FUNCTION C”.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
SEF058Y
PROCEDURE FOR MALFUNCTION A
With CONSULT-II
1) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) If 1st trip DTC is detected, go to EC-456, “Diagnostic Proce-
dure”.
With GST
Follow the procedure “With CONSULT-II” above.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0605 ECM
Component Description
EC-455
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