Yukon Denali 4WD V8-6.0L Hybrid (2011)
‹› If greater than the specified range, test the circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
6. Test for less than 2 between the ignition voltage circuit terminal A and the fuse.
‹› If greater than the specified range, repair the ignition voltage circuit for high resistance.
7. Ignition ON, verify that a test lamp illuminates between the ignition voltage circuit terminal A and ground.
‹› If the test lamp does not illuminate, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal
and the ignition voltage circuit fuse is open, test all components connected to the ignition voltage circuit and replace as necessary.
8. If all circuits test normal, test or replace the ignition coil assembly.
Repair Instructions
Perform the Diagnostic Repair Verification See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures after completing the diagnostic procedure.
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Ignition Coil Replacement See: Service and Repair
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Control Module References See: Testing and Inspection/Programming and Relearningfor ECM replacement, setup, and programming
