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DTC C056E

DTC C056E

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 00

Electronic Control Module Software

DTC C056E 38

Electronic Control Module Software Programming, Checksum Error

DTC C056E 41

Electronic Control Module Software Not Programmed

DTC C056E 42

Electronic Control Module Software Calibration Not Programmed

DTC C056E 43

Electronic Control Module Software Not Feasible

DTC C056E 45

Electronic Control Module Software Variant Not Programmed

DTC C056E 46

Electronic Control Module Configuration Not Programmed

DTC C056E 47

Electronic Control Module Software Variant VIN Not Programmed

DTC C056E 48

Security Code in Electronic Control Module Software Not Programmed

DTC C056E 4A

Electronic Control Module Software Programming, Checksum Error

DTC C056E 4B

Electronic Control Module Software Calibration Not Set

DTC C056E 5A

Electronic Control Module Software Not Feasible

DTC C056E 71

Control Module Not Correctly Programmed

Circuit/System Description

Some control modules must be configured with specific software, serial numbers, vehicle options, or other information. If a control module was not properly configured after installation that module may set DTC C056E. The symptom byte listed in the DTC Descriptor 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

The control module 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 module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.


Reference Information

Schematic Reference

Data Communication Schematics

Connector End View Reference

Component Connector End Views

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

Verify DTC C056E is not set.

If the DTC is set in a control module, program the control module. If the DTC resets, replace the control module that set the DTC.

If the DTC is set in a sensor, program the sensor. If the DTC resets, replace the sensor that set the DTC.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for control module replacement, setup, and programming