SES MIL / Reduced Engine Power / Mis – 2020 Chevrolet Silverado & GMC Sierra 1500

Bulletin No.: PIT5751A Published date: 06/30/2020
Preliminary Information
PIT5751A SES MIL / Reduced Engine Power / Misfire / IPC Gauges Sweep / IPC Warning Message / Loss
Communication / Various DTCs / Blown Fuse (Inspect Engine Harness 3.0L Diesel)
Models

Brand:

Chevrolet GMC

Model:

Silverado 1500
Sierra 1500

Model Years:

2020
2020

VIN:
from to
All All
All A

Engine:

3.0L LM2
3.0L LM2

All All

Transmissions:

Involved Region or Country Condition

North America
Some customers may comment on any of the following concerns:
-Engine runs rough
– Misfires
– Low Power
– SES MIL
– Blown Fuses: F46UA, F78UA, F86UA, F87UA, and/or F90UA
– Any combination of the following DTC’s:
C118D P0016 P0045 P0046 P0048 P007B P007C P007D P007E P0087 P0089 P0090 P0091 P0092 P0096 P0097
P0098 P0099 P00C7 P00C9 P00CA P00DF P00E0 P00E1 P00E2 P00E9 P00EA P00EB P00EC P00F4 P00F5 P00F6
P0101 P0102 P0103 P0106 P0107 P0108 P0111 P0112 P0113 P0114 P0117 P0119 P017B P017C P017D P017E
P0181 P0182 P0183 P0184 P018B P018C P018D P0191 P0192 P0193 P01E5 P01E6 P01E7 P0201 P0202 P0203
P0204 P0205 P0206 P0216 P0228 P0261 P0262 P0264 P0265 P0267 P0268 P0270 P0271 P0273 P0274 P0276
P0277 P02E0 P02E3 P02E8 P02E9 P02EB P030 P0300 P0301 P0302 P0304 P0305 P0306 P0335 P0336 P0340
P0341 P037A P037B P0381 P0403 P0405 P0406 P041B P041C P041C P041D P041E P044C P044D P045A P045D
P0475 P0478 P048D P048D P048E P048E P0490 P04CF P04D0 P04D1 P04D2 P04DB P04E2 P04E3 P04FB P0545
P0546 P057B P057C P057D P057E P0628 P0629 P0641 P0650 P0651 P066A P066B P066C P066D P066E P066F
P0671 P0672 P0673 P0674 P0675 P0676 P067A P067B P067C P067D P067E P067F P0685 P0686 P0687 P0689
P0690 P0697 P06A3 P1004 P1005 P1006 P1007 P100F P1018 P1019 P101B P101C P101D P101E P1096 P1097
P1098 P109F P10A0 P10A1 P10A2 P10C0 P10C1 P10D5 P10D6 P10D7 P10D8 P10E6 P10E7 P10E8 P10EA P10EB
P10EC P10ED P113B P113C P113D P115E P115F P1160 P116A P116B P116C P116D P116E P116F P118A P118B
P1192 P1193 P1194 P119A P119B P119C P119D P119E P119F P11B3 P11BE P11BF P11C0 P11C5 P11C6 P11C7
P11C8 P11C9 P11CC P11D0 P11D1 P11D2 P11D3 P11D5 P11D8 P11D9 P11DA P11DB P11DC P11FC P11FD P11FE
P122B P122C P1248 P1249 P124A P124B P124C P124D P127C P127D P129D P12A6 P131B P131C P1388 P1389
P138A P1402 P1407 P140F P1419 P141A P141B P141C P1424 P1425 P1474 P1475 P1476 P1477 P1478 P1479
P147B P1488 P14A7 P14A8 P14A9 P14AA P14AB P14AC P14AD P14AE P14AF P14B0 P14B1 P14B2 P14B3 P14B4
P14D9 P14DA P163A P163B P1682 P169E P169F P16AD P16AE P16BC P16BD P16BF P16FA P16FC P2008 P2009
P2010 P2016 P2017 P201B P2032 P2033 P203B P203C P203D P206B P206C P206D P2080 P2081 P2084 P2085
P2122 P2123 P2127 P2128 P2138 P2147 P2148 P2150 P2151 P2153 P2154 P2184 P2185 P2186 P21C5 P2202
P2203 P2205 P2206 P2207 P2208 P2209 P220A P220B P2210 P2211 P2227 P2228 P2229 P2230 P2264 P227B
P227C P227D P227E P228C P228D P2293 P2294 P2295

Cause

P2296 P2297 P22A0 P22A1 P22A3 P22A4 P22A5 P22A6 P22A7 P22A8 P22A9 P22AB P22AC P22AD P22B2 P22B6
P22B7 P22FE P233A P233B P233C P2381 P2382 P2383 P2384 P23AE P23AF P23B1 P23B2 P23B3 P23B4 P23B5
P23B6 P23B8 P23B9 P23C1 P242B P242C P242D P242E P2452 P2453 P2454 P2454 P2455 P2456 P24B0 P24B1
P24B3 P24B4 P24B5 P24B6 P24C7 P24D0 P24D1 P2564 P2565 P2599 P2627 P2628 P263A P263B P26B7 P26B8
P26B9 P26BB P26C0 P26C2 P26FA P2A00 P2A01 P2A02 P2ADA P2ADC P2ADD P2AFE P2AFF P2B2D P2B2E P2B58
P2B59 P2B5B P2B5C P2B5E P2B5F P2B98 P2B99 P2BA0 P2BB4 P2BB5 P2C3A P2C3B P2C3C P2C3D P2C48 P2C63
P2C64 P2C65 P3196 P3198 P3199 U0100 U0101 U0121 U0140 U02A1 U060F U0617 U062F U063F U064F U0650
U0651 U0653 U0654 U0656 U111A U2627 U2628 U2630
These concerns could be caused by the engine harness getting pinched/shorted/chaffed in grid
coordinates G-8, shown below. This location is approximately 18 inches from the ECM connectors,
shown below (1). Due to the number of circuits in the harness, there is a wide variety of
different symptoms that could occur, depending on which circuit(s) are damaged.

For the following DTC’s: P0201, P0202, P0203, P0204, P0205, P0206, and/or P0216, also inspect for
poor terminal contact at connector X160 callout 25, shown below.

Correction
In many cases, the ECM has been unnecessarily replaced for these concerns. Please thoroughly
inspect the areas shown above and follow published SI diagnostics before any parts are replaced.
If any concerns are found, then follow SI Wiring and Connector repair instructions to correct the
concern.
Warranty Information
For wiring repairs covered under warranty, please refer to latest version of bulletin 10-00-89-005
for warranty information on wire/connector repairs.

Version History
Version 2
Modified 06/12/2020 – Created on

6/30/2020 – Updated Title, DTC’s list, grid location and added pictures