KENR6933 75
Troubleshooting Section
An electrical fault can prevent the electronic unit
injector from o
perating.Anopencircuitinthewiring
that is unique to the electronic unit injector will prevent
that individual electronic unit injector from operating.
An open circui
t in common wiring within the ECM can
prevent the three electronic unit injectors that share
that common wiring from operating.
The ECM will continue to attempt to operate the
electronic unit injector after the diagnostic code has
been logged b
ut an open circuit will prevent the
operation of the electronic unit injector.
Perform the f
ollowing diagnostic procedure: “Injector
Solenoid Circuit - Test”
Results:
•
OK – STOP.
i02748626
CID 0002 FMI 06
Conditions
Which Generate This Code:
This diagnostic code is designed to indicate a short
circuit (hi
gh current) in either the solenoid or the
wiring for the electronic unit injector for No. 2 cylinder.
The Electro
nic Control Module (ECM) detects the
following conditions:
•
Ahighcurr
ent condition (short circuit) for each of
five consecutive attempts to operate
•
Battery vo
ltage above 9 volts for 2 seconds
System Response:
If equipped, the warning light will come on. The ECM
will log the diagnostic code.
Possible Performance E ffect:
The engine
will have low power and/or rough running.
Troubleshooting:
When an injector cutout test is performed, a faulty
electronic unit injector will indicate a low reading in
compariso
n with the other electronic unit injectors.
An electrical fault can prevent the electronic unit
injector
from operating. A short circuit in the wiring or
the ECM that is unique to one electronic unit injector
will prevent that individual electronic unit injector from
operatin
g. A short circuit in common wiring within the
ECM can prevent the three electronic unit injectors
that share that common wiring from operating.
The ECM will continue to attempt to operate the
electronic uni
t injector after the diagnostic code
has been logged but a short circuit will prevent the
operation of the electronic unit injector.
Perform the following diagnostic procedure: “Injector
Solenoid Circuit - Test”
Results:
•
OK – STOP.
i02748628
CID 0002 FMI 07
Conditions Which Generate This Code:
The electroni
c unit injector is no longer capable of
delivering the correct amount of fuel.
System Respo
nse:
If equipped, the warning light will come on. The
Electronic C
ontrol Module (ECM) will log the
diagnostic code.
Note: The d ia
gnosticcodecanbeviewedonthe
electronic service tool.
Possible Per
formance Effect:
The engine will be derated by 20%.
Troubleshooting:
Replace the
suspect electronic unit injector. Refer
to Disassembly and Assembly, “Electronic Unit
Injector - Remove” and Disassembly and Assembly,
“Electroni
c Unit Injector - Install”.
Use the electronic service tool to perform the fuel
system veri
fication test.
Perform the following diagnostic procedure: “None”
Results:
•
OK – STOP.
i02655554
CID 0 003 FM
I02
Conditions Which Generate This Code:
The Electr
onic Control Module (ECM) detects the
following condition:
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