SERIES 60 EGR TECHNICIAN'S MANUAL
Failure Mode
:
SID 146, FMI 2 — EGR Leak (Boost Mode)
Indicates
:
No EGR
fl
ow requested by DDEC and EGR
fl
ow 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
fl
ow is above a maximum allowable
fl
ow 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
:
Ƒ
Defective Delta P sensor
Ƒ
EGR valve mechanical failure (open)
Ƒ
Plugged Delta P lines
Failure Mode
:
SID 146, FMI 12 — EGR Leak (Boost Jake)
Indicates
:
No EGR
fl
ow requested by DDEC and EGR
fl
ow 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
fl
ow is above a maximum allowable
fl
ow 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
:
Ƒ
Defective Delta P sensor
Ƒ
EGR valve mechanical failure (open)
Ƒ
Plugged Delta P lines
All information subject to change without notice.
(Rev. June 2005)
4-7
7SE60 0506
Copyright © 2005 DETROIT DIESEL CORPORATION