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Cadillac TSB #PIP5402B
2017 Cadillac CT6
Affected Component: EQUIPMENT ADAPTIVE
- This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
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