CODES
Failure Mode
:
SID 146, FMI 2 — EGR Leak (Boost Mode)
Indicates
:
No EGR flow requested by DDEC and EGR flow detected.
SID 146, FMI 2 will be set by the ECM if, the signal from the Delta P sensor and EGR
temperature sensor indicate EGR flow is above a maximum allowable flow when the ECM is in
“Boost Mode” for a period greater than 50 seconds.
Response
: The CEL will illuminate and a fault message will be generated.
Possible Causes
:
EGR valve mechanical failure (open)
Defective Delta P sensor
Plugged Delta P lines
Failure Mode
:
SID 146, FMI 12 — EGR Leak (Boost Jake)
Indicates
:
No EGR flow requested by DDEC andEGR flow is detected while braking.
SID 146, FMI 12 will be set by the ECM if, the signal from the Delta P sensor and EGR
temperature sensor indicate EGR flow is above a maximum allowable flow when the ECM is in
“Jake Mode” for a period greater than 50 seconds.
Response
: The CEL will illuminate and a fault message will be generated.
Possible Causes
:
EGR valve mechanical failure (open)
Defective Delta P sensor
Plugged Delta P lines
4-8
All information subject to change without notice.
(Rev. April 2004)
7SE60 0404
Copyright © 2004 DETROIT DIESEL CORPORATION