GMC Tech 2 - Page 174

VCI MODULE DIAGNOSTIC CHART
Test Results Solution
VCI J1708 Internal transceiver - pass/fail
Differential - pass/fail
Differential - pass/fail (results from
selectable VCI test)
For any failure, cycle Tech 2 and retest.
If problem persists, contact Customer Support.
VCI TPU
(Time Processor Unit)
TPU0 - pass/fail
TPU1 - pass/fail
TPU5 - pass/fail
TPU12 & TPU15 - pass/fail (or not tested if
no loopback)
TPU13 & TPU14 - pass/fail (or not tested if
no loopback)
For any failure, cycle Tech 2 and retest.
If problem persists, contact Customer Support.
VCI level shifters MUX A 2.5 V Hi - pass/fail
MUX A 2.5 V Lo - pass/fail
MUX A 5.0 V Hi - pass/fail
MUX A 5.0 V Lo - pass/fail (results from
selectable VCI test)
For any failure, cycle Tech 2 and retest.
If problem persists, contact Customer Support.
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