PIP5911A

Bulletin No.: PIP5911A
Published date: 01/5/2024
Preliminary Information
PIP5911A SES LIGHT ON – P066A P066C P066E P067A P067C
P067E P068C P068E
Models
Brand:
Model:
Model Years:
VIN:
from
to
Engine:
Transmissions:
Chevrolet
Silverado 2500HD 3500HD
2024
All
All
6.6L (RPO L5P)
All
GMC
Sierra 2500HD 3500HD
2024
All
All
6.6L (RPO L5P)
All
Involved Region or Country North America
Condition
SES LIGHT ON – P066A P066C P066E P067A P067C P067E P068C P068E
Cause
Blown fuse F5 (F5BA) will result in Cylinder 1, 4, 6 & 7 all setting DTCs
simultaneously
Blown fuse F6 (F6BA) will result in Cylinder 2,3,5 and 8 all setting DTCs
simultaneously
Terminal damage in X950D 55-way connector will result in individual P0671 P0672
P0673 P0674 P0675 P0676 P0677 P0678 DTCs setting.
Correction:
Do not replace or disturb glow plugs before checking BDU (Battery Distribution Unit Fuse Assembly) and for bent
terminal in X950D 55-way connector.
Be sure to check for 12V on BDU ring terminal while wiggling the cable.
Some blown fuse conditions will intermittently make contact.
If fuse is intermittent or blown, replace the BDU assembly.
DO NOT OVERTORQUE OR STRESS BDU FUSE.
10 mm nut is torqued to 6 Nm ; 13 mm nuts torqued to 15 Nm.
X950D connector can be separated by disengaging the red CPA and squeezing the corners of the connector.
Look for bent terminals in X950D that may result in individual P0671 P0672 P0673 P0674 P0675 P0676 P0677
P0678 DTCs setting.
Version History
Version
2
Modi ed
03/21/2023 - Created on.
01/05/2024 - Updated to correct connector number
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