P12A6 on Chevrolet

On Chevrolet, the fuel pump enable circuit voltage is not performing as expected

Severity: Inspect soon

GM bulletins for this code describe a crank no start or an extended crank, so the vehicle may fail to start or leave you stranded.

It gets more serious if:

This page covers only what differs on Chevrolet. For what P12A6 means, the ranked causes and the test order, see the P12A6 guide.

2017–2020 · Silverado 1500
Supported by vehicle data
GM PIP5719A covers P12A6 with a crank no start or extended crank on 2017 to 2020 Chevrolet trucks and SUVs. Not verified as current.
2021 · Tahoe
Supported by vehicle data
GM bulletin 20NA218 gives repair information for P12A6 on 2020 to 2021 Tahoe and Suburban and related trucks. Not verified as current.

PIP5719AStatus unverified
Possible P12A6 with crank no start or extended crank
2017–2020silverado-1500, silverado-2500-hd, tahoe, suburban, equinox · issued May 11, 2020 · NHTSA 10174826
GM preliminary information about P12A6 with a possible crank-no-start or extended crank concern on 2017 to 2020 trucks and SUVs.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
20NA218Status unverified
Repair for possible crank no start or extended crank with P12A6
2021tahoe, suburban · issued December 21, 2020 · NHTSA 10184497
GM technical bulletin giving repair information for a possible crank no start or extended crank concern with P12A6 on 2020 to 2021 trucks and SUVs.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Chevrolet PIP5719A: Possible P12A6 with crank no start or extended crank — NHTSA manufacturer communications , May 11, 2020
Chevrolet 20NA218: Repair for possible crank no start or extended crank with P12A6 — NHTSA manufacturer communications , December 21, 2020

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error