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Appendix A
Troubleshooting
This section addresses issues that may arise when using the ETHOS™ scan tool.
A.1 Bent Cable Connector Pin
The contact pins of the data cable connector saver may break or become bent. Bent pins
make it difficult or impossible to connect the cable, and missing pin cause communication
problems. Replace the connector saver to repair damaged pins, see “Connecting to Vehicle
Power” on page 12 for details.
A.2 Erratic or No Communication
A steady source of vehicle power is required for the scan tool to properly operate during
testing. The 93L Data Cable provides 12V power to the unit through the vehicle data link
connector (DLC). For vehicles that do not provide vehicle power on the DLC, a separate cable
adapter and power cable are needed to power the unit. Poor or loose cable connections or
damaged cables can cause erratic or no communication.
Make sure all connections are clean and tight. Measure resistance on suspect cables. If using
an optional power cable, make sure it is properly connected. The power cable connects to a
port on the cable adapter. Never connect the optional power cable or the AC/DC power
adapter to the DC power supply input on top of the unit when the scan tool is communicating
with the vehicle.
A.3 No Communication Message
When the screen displays a “No Communication” (Figure A-1) message, it means the scan
tool and the vehicle control module are not communicating with each other.
Figure A-1
Sample No Communication message
The following conditions will cause the scan tool to display a “No Communication” message:
!
* * * * ETHOS* * * *
No communication. Is key On?
Ensure Scanner is Connected.
See ETHOS User Manual.
Press
N
: Exit