T-SB-0034-24

Some 2023 model year Crown vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present:
•P001400 – (B Camshaft Position - Timing Over-Advanced or System Performance Bank 1)
•P001500 – (B Camshaft Position - Timing Over-Retarded Bank 1) The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition.