Lucerne V8-4.6L (2008)
3. Ignition ON, verify that a test lamp illuminates between battery positive voltage circuit terminal E X1 and ground.
‹› If the test lamp does not illuminate, repair the battery positive voltage circuit for a short to ground or an open/high resistance. If the circuit fuse
is open, also test the positive voltage outputs of the module for a short to ground. If the circuits test normal, replace the CCSM.
4. Ignition ON, verify that a test lamp illuminates between ignition voltage circuit terminal 1 X2 and ground.
‹› If the test lamp does not illuminate, repair the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit fuse is
open, also test the positive voltage outputs of the module for a short to ground. If the circuits test normal, replace the CCSM.
5. Test for infinite resistance between the data link connector (DLC) keyword 2000 serial data circuit terminal 7 and ground.
‹› If less than the specified value, test the serial data circuit for a short to ground.
6. Test for less than 1 volt between the DLC keyword 2000 serial data circuit terminal 7 and ground.
‹› If greater than the specified range, test the serial data circuit for a short to voltage.
7. Test for less than 1 ohm of resistance in the keyword 2000 serial data circuit between the CCSM terminal 9 X3 and the DLC terminal 7.
‹› If greater than the specified range, test the serial data circuit for open/high resistance.
8. If all circuits test normal, replace CCSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests
and Procedures) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for CCSM replacement, setup, and programming
