P0845: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P0845 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

6 complaints filed with NHTSA mention P0845, 2 of them since 2015, across 4 different models. The component owners most often filed it under: power train:automatic transmission.

Most-reported models

VehicleComplaintsModel years reported
HONDA ODYSSEY32002, 2003

Manufacturer service bulletins that name P0845

2 technical service bulletins and manufacturer communications filed with NHTSA mention P0845, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • FORD ESCAPE (2020, 2021), bulletin 10201593: Some 2020-2021 Escape vehicles may exhibit a loss of voltage reference (VREF) or runs rough, blow fuse 44 and may or may not set DTC's P06A7,P0840,P0842,P0845,P0847,P2122,P2127,P0522,P008A,P06A6,P2196,P0192, P0212,P0340,…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.