P2534

Ignition Switch Run/Start Position Circuit Low

NHTSA 10190705 ↗ NHTSA 10220958 ↗

CHEVROLET, GMC

This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated, Stall, or No Start with DTC P2534, U3023, P0700, P129D, P10DB (w/ L5P Diesel), P103B, P17E0.

RAM

Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybri…

RAM

Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybri…

CADILLAC

This Preliminary Information communication provides information to the technician about vehicles that have Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Code P2534 set in the Transmission Control Module. Technician will need to update the Transmission Control Module updated calibration files using Tis-2…