Chrysler 2005 Crossfire SRT6 Service Manual page 760

8E - 58 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
*NO RESPONSE FROM BODY CONTROL MODULE (CONTINUED)
7.
DISCONNECT MODULES
Note: The Body Control Module and Sentry Key Remote Entry
Module both use the SCI Transmit circuit at DLC cavity 1 to com-
municate with the DRB III . If one of these modules keeps the SCI
Transmit circuit artificially high or low, the DRB III
able to communicate with either of the modules.
Note: Perform the following steps for each of the modules until
communication is restored with the other module or until each of
the modules has been eliminated as the cause of the fault.
Turn the ignition off.
Disconnect each of the modules noted above, one at a time.
Turn the ignition on.
Using the DRB III , attempt to communicate with the other module still
connected.
Is the DRB III able to communicate with the other module?
Yes >> Replace the module that was disconnected when communication was restored to the other module.
Perform BODY VERIFICATION TEST.
No >> Go to 8
8.
SCI TRANSMIT CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the harness connectors for the Body Control Module and
Sentry Key Remote Entry Module.
Turn the ignition on.
Measure the voltage of the SCI Transmit circuit at DLC cavity 1.
Is the voltage below 0.5 volt?
Yes >> Go to 9
No >> Repair the SCI Transmit circuit for a short to voltage.
Perform BODY VERIFICATION TEST.
will not be
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