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
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- 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:
Parking brake adjustment (disc brake)
NOTE: The park brake cable adjusting nut is a nylon lock type. Use
ONLY HAND
TOOLS whenever tightening or loosening the adjusting nut.
Apply and fully release the park brake several times. Verify that the
park brake lever releases completely.
Turn ON the ignition. Verify the red BRAKE warning
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt
height adjuster for the driver and
right front passenger seating
positions.
Adjust the height so the shoulder
portion of the belt is on the shoulder
but not falling off of it. The belt
should be close to but not
contacting the neck. Improper
shoulder belt height adju
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