16 KENR6933
Troubleshooting Section
i02654405
Replacing the ECM
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, test-
ing, adjustin
g and repair of the product. Be prepared to
collect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containi
ng fluids.
Dispose of all fluids according to local regulations and
mandates.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
The engine is equipped with an Electronic Control
Module (ECM). The ECM contains no moving parts.
Follow the tr
oubleshooting procedures in this manual
in order to be sure that replacing the ECM will correct
the problem. Verify that the suspect ECM is the
cause of the p
roblem.
Note: Ensure that the ECM is receiving power
and that the E
CM is properly grounded before
replacement of the ECM is attempted. Refer to the
Schematic Diagram.
A test ECM can be used in order to determine if the
ECM on the engine is faulty. Install a test ECM in
place of the
suspect ECM. Install the flash file into
the test ECM. Program the parameters for the test
ECM. The parameters must match the parameters in
the suspec
t ECM. Refer to the following test steps
for details. If the test ECM resolves the problem,
reconnect the suspect ECM. Verify that the problem
returns. I
f the problem returns, replace the ECM.
Use the Electronic Service Tool to read the
paramete
rs in the suspect ECM. Record the
parameters in the suspect ECM. Install the flash file
into the new ECM. After the ECM is installed on the
engine, t
he parameters must be programmed into
the n ew ECM.
Note: Whe
n a new ECM is not available, you may
need to remove an ECM from an engine that is not in
service. The ECM must have the same serial number
suffix. E
nsure that the replacement ECM and the
flash file match the suspect ECM. Be sure to record
the parameters from the replacement ECM. Use the
“Copy Co
nfiguration ECM Replacement” function in
the Electronic Service Tool.
NOTICE
If the flash file and engine application are not matched,
engine damage m
ay result.
Perform the following procedure in order to replace
the ECM.
1. Connect the Electronic Service Tool to the
diagnostic co
nnector.
2. Use the “Copy Configuration ECM Replacement”
function from
the Electronic Service Tool. If the
“Copy Configuration” is successful, proceed to
Step 4. If the “Copy Configuration” failed, proceed
to Step 3.
Note: Record any Logged Faults and Events for your
records.
3. Record the following parameters:
•
Record all of th e parameters on the
“Configuration” screen.
•
Record all of the parameters on the “Throttle
Configuration” screen.
•
Record all of the parameters on the “Mode
Configuration” screen.
•
Record the serial numbers of the electronic unit
injectors. The injector serial numbers are shown
on the “Inje
ctor Trim Calibration” screen.
Note: If the parameters cannot be read, the
parameters
must be obtained elsewhere. Some
parameters are stamped on the engine information
plate, but most parameters must be obtained from
the PTMI da
ta on Perkins Secured Internet.
4. Remove power from the ECM.
5. Remove the ECM. Refer to Disassembly and
Assembly, “Electronic Control Module - Remove
and Instal
l”.
6. Install the replacement ECM. Refer to Disassembly
and Assemb
ly, “Electronic Control Module -
Remove and Install”.
7. Download
the flash file.
a. Connect the Electronic Service Tool to the
diagnost
ic connector.
b. Select “WinFlash” from the “Utilities” menu of
the elect
ronic service tool.
c. Select the downloaded flash file.
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