Table 241
Troubleshooting Test Steps
Values Results
1. Determine the Fault
A. If an indicator other than the “POWER” indicator is illuminated when the
electronic service tool is not communicating with an ECM, disconnect and
reconnect the communication adapter.
Communication
problem
Result: Both indicators on the communica-
tion adapter are not flashing.
Proceed to Test Step 2.
Result: The electronic service tool indicates
that the engine is serviced on both links.
Proceed to Test Step 2.
Result: The electronic service tool displays a
message that indicates the firmware in the
communication adapter does not support
communication on both data links.
Proceed to Test Step 3.
Result: The electronic service tool displays
an Error “ #142 The interface hardware is not
responding” message.
Proceed to Test Step 3.
Result: The electronic service tool indicates
that the electronic service tool cannot find an
exact match for the software version in the
ECM.
Repair: Update the electronic service tool to
the latest available version.
Result: The power indicator is not
illuminated.
Proceed to Test Step 5.
2. Verify that the Correct Communication Adapter is Being Used
A. A 27610164 TIPSS Adaptor Kit must be used to communicate.
B. Determine the communication adapter that is being used.
Communication
Adapter
Result: An incorrect communication adapter
is being used.
Repair: Connect a correct communication
adapter. Refer to Troubleshooting, “Elec-
tronic Service Tools”, if necessary.
Attempt to establish communication. Contin-
ue with this procedure if the communication
adapter does not communicate on both data
links.
Result: A correct communication adapter is
being used. However, the “Power” indicator
is not illuminated.
Proceed to Test Step 5.
Result: A correct communication adapter is
being used. The “Power” indicator is
illuminated.
Proceed to Test Step 4.
(continued)
502 UENR4469-36
Service
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