Chrysler 2005 Crossfire SRT6 Service Manual page 745

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*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE (CONTINUED)
7.
DISCONNECT MODULES
Note: The Controller Antilock Brake and Shift Lever Assembly
both use the SCI Transmit circuit at DLC cavity 9 to communicate
with the DRB III . If one of these modules keeps the SCI Transmit
circuit artificially high or low, the DRB III will not be able to com-
municate 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 Controller Antilock Brake
and Shift Lever Assembly.
Turn the ignition on.
Measure the voltage of the SCI Transmit circuit at DLC cavity 9.
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.
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 43