PIT5719A

Service Bulletin Details

Public Details for: PIT5719A

This preliminary information communicates information on the brake booster pump running at all times even with ignition off. Dealer is to disconnect the brake pipe pressure switch to verify it concern is corrected, if so dealer is to repla


- 2019 -

Models from 2019
2019 CHEVROLET SILVERADO 4500HD
2019 CHEVROLET SILVERADO 5500HD
2019 CHEVROLET SILVERADO 6500HD 
Bulletin No.: PIT5719A
Published date: N/A
Preliminary Information
PIT5719A Diagnostic Tip - Brake Booster Pump Motor Runs at All
Times Even After Ignition Turned O
Models
Brand:
Chevrolet
Model
Years:
Model:
Silverado 4500HD, 5500HD,
6500HD
2019
VIN:
from
SOP
to
Built Before
8/1/2019
Engine: Transmissions:
All
All
Involved Region or Country North America
Condition / Concern
Some customers may comment that the brake booster pump motor runs at all
times even after the ignition is turned o . The dealer may nd DTC C0021 set in
EBCM.
Recommendations / Instructions:
Disconnect the B356 brake pipe pressure switch to verify brake booster stops running. If so, replace the B356
Brake Pipe Pressure Switch and evaluate for concern.
Version History
Version
1
Modi ed
11/14/2019 - Created on
4/16/2020 - Updated to add build date breakpoint
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