Chevrolet Trax: Data Communications - Diagnostic information and procedures
Chevrolet Trax (2013-2022) Workshop Manual / Accessories & Equipment / Data Communications / Data Communications - Diagnostic information and procedures
DIAGNOSTIC CODE INDEX
CONTROL MODULE U CODE LIST
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all devices. Not all DTCs listed will be applicable to all vehicles.
For symptom byte information, refer to Symptom Byte List .
Control Module U Code List
.jpg)
.jpg)
.jpg)
.jpg)
- DTC B1000: Electronic control unit
- DTC B101D: Electronic control unit hardware
- DTC B101E: Electronic control unit software
- DTC C056D: Electronic control unit hardware
- DTC C056E: Electronic control unit software
- DTC U0020:Low speed can bus
- DTC U0073 OR U2100: Can bus communication
- DTC U0074: Control module communication bus B OFF
- DTC U0078: Control module communication low speed can bus off
- DTC U0300-U0336: See control module u code list
- DTC U0400-U05FF: See control module U code list
- DTC U1814: Powertrain wake-up communication circuit
- DTC U18A6: Lost communication with right object detection control module on dedicated bus 1
- DTC U18B9-U18BF: High speed can bus subnet configuration list
- DTC U2099: High speed communication enable circuit
- Symptoms - data communications
- Scan tool does not communicate with chassis high speed gmlan device
- Scan tool does not communicate with high speed gmlan device
- Scan tool does not communicate with low speed gmlan device
READ NEXT:
DTC B1000: Electronic control unit
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
DTC B101D: Electronic control unit hardware
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
DTC B101E: Electronic control unit software
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
SEE MORE:
Dolly Towing (Front-Wheel-Drive Vehicles Only)
To tow a front-wheel-drive vehicle
from the front with two wheels on
the ground:
Put the front wheels on a dolly.
Move the shift lever to P (Park).
Set the parking brake.
Clamp the steering wheel in a
straight-ahead position with a
clamping device designed for
towing.
Remove the key from
Collision Damage Repair
If the vehicle is involved in a
collision and it is damaged, have the
damage repaired by a qualified
technician using the proper
equipment and quality replacement
parts. Poorly performed collision
repairs diminish the vehicle resale
value, and safety performance can
be compromised in subsequent
coll
© 2019-2026 Copyright www.chevtrax.com
