PIT6108

Bulletin No.: PIT6108
Published date: 01/10/2024
Preliminary Information
PIT6108 HUMMER EV Diagnostic AID For Vehicles Setting DTC
U138D or U1155 and U043A or U0139
Models
Brand:
Model:
Model Years:
VIN:
from
to
Engine:
Transmissions:
GMC
HUMMER EV
2022 - 2024
All
All
All
All
GMC
HUMMER EV SUV
2024
All
All
All
All
Involved Region or Country North America
Condition
Cause
If you experience a Hummer EV that is setting DTC U138D or U1155 and U043A or
U0139 , the DTC descriptor that is being set by the K5 Automatic Level Control
Module (VLM) and K19 Suspension Control Module (SADS) is incorrect and may
cause mis-diagnosis and incorrect module replacement during service.
When the K5 Automatic Level Control Module / K19 Suspension Control Module are
not on the bus or sending invalid serial data, the Brake System Control Module
(BSCM) sets the correct fault against the K5 Automatic Level Control Module but also
incorrectly sets an additional fault against the K19 Suspension Control Module.
Correction:
When diagnosing DTC U138D (K5 Automatic Level Control Module) and U043A (K19 Suspension Control Module –
troubleshoot the U138D (K5 Automatic Level Control Module) rst.
When diagnosing DTC U1155 (K5 Automatic Level Control Module)) and the U0139 (K19 Suspension Control
Module) - troubleshoot the U1155 (K5 Automatic Level Control Module) rst
Version History
Version
Modi ed
1
01/10/2024- Created on.
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