Chevrolet Trax: DTC C056E: 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.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category

DTC Descriptor

DTC C056E

Electronic Control Unit Software

For symptom byte information, refer to Symptom Byte 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 module may set DTC C056E. The symptom byte information is for engineering reference only. 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

• 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)

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 References

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.
2. Verify DTC C056E is not set.

• If DTC C056E is set

1. Program the device that set the DTC.
2. Verify the DTC does not set.

• If the DTC sets, replace the device that set the DTC.
• If the DTC does not set

3. All OK.

• If DTC C056E is not set

3. All OK

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for device replacement, programming and setup

DTC P0601-P0606, P060A, P062F, OR P262B: CONTROL MODULE READ ONLY MEMORY/PROCESSOR PERFORMANCE

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

DTC P0601

Control Module Read Only Memory Performance

DTC P0602

Control Module Not Programmed

DTC P0603

Control Module Long Term Memory Reset

DTC P0604

Control Module Random Access Memory Performance

DTC P0605

Control Module Programming Read Only Memory Performance

DTC P0606

Control Module Processor Performance

DTC P060A

Control Module Monitoring Processor Performance

DTC P062F

Control Module Long Term Memory Performance

DTC P262B

Control Module Power Off Timer Performance

For symptom byte information, refer to Symptom Byte List .

Circuit/System Description

This diagnostic applies to internal microprocessor integrity conditions within the device. This diagnostic also addresses if the device is not programmed. The device monitors its ability to read and write to the memory. It also monitors a timing function. No external circuits are involved.

Conditions for Running the DTC

• The ignition is ON.
• The system voltage is greater than 9.5 V.

Conditions for Setting the DTC

The device detects an internal malfunction or incomplete programming.

Action Taken When the DTC Sets

DTCs P0601-P0606, P060A, P062F, and P262B are Type A DTCs.

Conditions for Clearing the DTC

DTCs P0601-P0606, P060A, P062F, and P262B are Type A DTCs.

Diagnostic Aids

If stored only as a history DTC and not retrieved as a current DTC, do not replace the device.

Reference Information

Schematic Reference

Data Communication Schematics (Encore), Data Communication Schematics (Trax)

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

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (LUV) , Powertrain Diagnostic Trouble Code (DTC) Type Definitions (2H0)

Scan Tool References

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.
2. Verify that DTC P0602 is not set.

• If DTC P0602 is set

1. Program the device that set the DTC.
2. Verify that the DTC does not set.

• If the DTC sets, replace the device that set the DTC.
• If the DTC does not set

3. All OK.

• If DTC P0602 is not set

3. Verify that DTC P0601, P0603, P0604, P0605, P0606, P060A, P062F, or P262B is not set.

• If any of the DTCs are set

Replace the device that set the DTC.

• If none of the DTCs are set

4. 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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