Toyota 30CM6100.cuw Firmware for the 2014 Tundra

30CM6100.cuw is associated with an engine control module calibration for the 2014 Toyota Tundra. Toyota lists calibration ID 30CM6100 as an updated calibration in service bulletin T-SB-0146-16, which addresses an illuminated malfunction indicator light and diagnostic trouble code P2610.

What the calibration controls

The engine control module manages engine operation and monitors emissions-related systems. P2610 concerns the module’s internal engine-off timer performance. That timer tracks time after the engine is shut down, information used by onboard diagnostic routines to determine when certain checks can run.

In practice, a P2610 fault can illuminate the malfunction indicator light, commonly called the check engine light. The bulletin identifies 30CM6100 as an updated calibration in connection with that condition. It does not establish that the calibration changes engine power or other driving characteristics.

Using the identifier in context

The filename 30CM6100.cuw contains the full calibration identifier listed in the bulletin. It is more specific than a match on only part of the code. The service record connects this updated calibration with the 2014 Tundra and the P2610 bulletin, but it does not establish compatibility with every truck of that model year.

A check engine light can have many causes. The P2610 diagnostic code and the applicable vehicle information are therefore important when distinguishing this bulletin from other engine-control concerns.