KENR9126 95
Troubleshooting Section
The Electronic Control Module (ECM) detects the
following cond
itions:
•
A low current condition in the output from the ECM
to the solenoi
d for the wastegate regulator
•
No 0168 diagnostic codes are active.
System Response:
If equipped
, the warning lamp will come on once the
diagnostic code has been active for 30 seconds.
The diagnostic code will be logged. After the derate
has been act
ivated, the electronic service tool will
indicate “Turbo Protection Derate Active”.
Possible P
erformance Effect:
The engine will be derated while this diagnostic code
is active.
Troubleshooting:
This diagnostic code will detect a fault in the circuit
for the solenoid in the wastegate regulator that is
most like
ly to be an open circuit.
Perform the following diagnostic procedure:
“Wasteg
ate Solenoid - Test”
Results:
•
OK – STOP.
i03452040
CID 0526 FMI 06
Conditions Which Generate This Code:
This diagnostic code will only appear if an
electronically controlled wastegate is installed.
The Electronic Control Module (ECM) detects the
following conditions:
•
A high current condition in the output from the ECM
to the solenoid in the wastegate regulator
•
No 0168 diagnostic codes are active.
Sys
tem Response:
If equipped, the warning lamp will come on once the
di
agnostic code has been active for 30 seconds.
The diagnostic code will be logged. After the derate
has been activated, the electronic service tool will
in
dicate “Turbo Protection Derate Active”.
Possible Pe rformance Effect:
The engine will be derated while this diagnostic code
is active.
Troubleshooting:
This diagnos
tic code will detect a fault in the circuit
for the solenoid in the wastegate regulator. This
problem is most likely to be caused by a high side
short to gro
undoralowsideshorttopower.
Perform the following diagnostic procedure:
“Wastegate
Solenoid - Test”
Results:
•
OK – STOP.
i04021001
CID 0526 FMI 07
Conditions Which Gen erate This Code:
This diagnostic code will only appear if an
electronically controlled wastegate is installed.
This diagnostic code indicates that the intake
manifold pressure is not being controlled correctly.
The Electronic Control Module (ECM) will detect the
following conditions:
•
The ECM has been powered for more than 4
seconds.
•
Diagnostic code 0168-01 is not active.
•
No 178
5 diagnostic codes are active.
•
Diagnostic codes 0526-05 and 0526-06 are not
acti
ve.
•
No 0262 diagnostic codes are active.
System Response:
If e
quipped, the diagnostic lamp will come on and the
diagnostic code will be logged.
Pos
sible Performance Effect:
•
The engine may not reach top RPM.
•
The engine produces excessive black smoke.
•
Th
e engine has low power.