GMC Tech 2 User Manual page 43

SECTION VI
CANdi Module Troubleshooting
The following troubleshooting information applies only to the CANdi module. This application is
unavailable for most vehicles at the time of writing.
Figure VI-25 shows the screen that the Tech 2 displays during programming of the CANdi module.
If the Tech 2 loses power during programming, the CANdi module will not be properly programmed. The
CANdi module will be automatically reprogrammed when power is available.
Figure VI-25
CANdi module programming screen
If a fault occurs during reprogramming, a screen like the one shown in
occurs, power off the Tech 2 and attempt to reprogram the CANdi module again. If the problem persists,
incorrect CANdi software may be present on the Tech 2 PCMCIA card. Connect the Tech 2 to the TIS
terminal and download a new version of the software.
Figure VI-26
CANdi fault screen
NOTE: Do not perform a VCI self-test while the CANdi module is connected. If the CANdi module is
connected and an error screen occurs, disconnect the CANdi module from the Tech 2 and
perform the test again.
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TROUBLESHOOTING
Figure VI-26 may appear. If this
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