Chevrolet Trax: DTC U0300-U0336: See control module u code list
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.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptor
Refer to Control Module U Code List.
Circuit/System Description
Some devices must be configured with specific software, serial numbers, vehicle options, or other information.
If a device was not properly configured after installation that device may set the appropriate communication DTCs. No external circuit diagnosis is involved.
Conditions for Running the DTC
Battery voltage is between 9-16 V and data link communications operate normally.
Conditions for Setting the DTC
The device is not configured properly.
Conditions for Clearing the DTC
- A current DTC clears when the malfunction is no longer present.
- A history DTC clears when the device ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
Reference Information
Schematic Reference
- Data Communication Schematics (Encore), Data Communication Schematics (Trax)
- Control Module References
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Data Link Communications Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON.
- Verify DTC U0300-U0336 is not set.
If DTC U0300-U0336 is set
- Program the device specified by the DTC descriptor.
- Verify the DTC does not set.
- If the DTC sets, replace the device specified by the DTC descriptor.
- If the DTC does not set
- All OK.
- If DTC U0300-U0336 is not set
- All OK
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for device replacement, programming and setup
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Immobilizer - Description and operation
IMMOBILIZER DESCRIPTION AND OPERATION
Fig. 5: Immobilizer Diagram Without BTM
The immobilizer system functions are provided by the body control module (BCM)
and the engine control
module (ECM), as well as any control modules which store and report the
environment identifier.
When an ignition ke
Roadside Assistance Program
For U.S.-purchased vehicles, call
1-800-243-8872. (Text Telephone
(TTY): 1-888-889-2438.)
For Canadian-purchased vehicles,
call 1-800-268-6800.
Service is available 24 hours a day,
365 days a year.
Calling for Assistance
When calling Roadside Assistance,
have the following information
ready:
Your
