Troubleshooting

Table 117
Troubleshooting Test Steps Values Results
1. Configuration of the Communications Adapter
A. Access “Preferences” under the “Utilities” menu on the
electronic service tool.
B. Check for hardware that uses the same ports as the com-
munications adaptor.
Communications
adapter
configuration
Result: The correct “Communications Interface Device” is
not selected.
Repair: Select the correct “Communications Interface De-
vice” .
Result: The correct port is not selected for use by the
communication adapter.
Repair: Select the correct port for use by the communica-
tion adapter.
Note: The most commonly used port is “COM 1” .
Result: Other hardware is sharing the same port with the
communications adaptor.
Repair: Exit or close the software programs for that
device.
Result: The communications adaptor is correctly
configured.
Proceed to Test Step 2.
2. Electrical Connectors
A. Check for correct installation of the P1 and P2 ECM con-
nectors and of the connector for the electronic service tool.
Electrical
connectors
Result: The connectors are not correctly installed.
Repair: Repair or replace the connectors, as necessary.
Result: The connectors are OK.
Proceed to Test Step 3.
3. Communication Adapter and/or Cables
A. Check that the firmware and driver files are the most current
files for the type of communication adapter that is being used.
Verify that the correct cable is being used between the com-
munication adapter and the diagnostic connector.
B. Disconnect and then reconnect the cable that attaches the
communication adapter to the diagnostic connector.
C. Check the operating system on the laptop computer.
Comms adaptor
and cables
Result: The firmware or driver files are not the most cur-
rent files.
Repair: Update the firmware or driver files to the most
current files.
Result: The cable between the communication adapter
and the diagnostic connector is not correct.
Repair: Replace the cable between the communication
adapter and the diagnostic connector with the correct
type.
Result: The laptop computer has a Windows operating
system.
Repair: Restart the laptop computer in order to eliminate
the possibility of a conflict in the software.
Result: The adaptor and cables are OK.
Proceed to Test Step 4.
(continued)
UENR0612-07 257
Service
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