DTC C056E
Diagnostic Instructions
DTC Descriptor
DTC C056E 00: Electronic Control Unit Software
DTC C056E 38: Electronic Control Unit Software Supervision Software Malfunction
DTC C056E 41: Electronic Control Unit Software Not Programmed
DTC C056E 42: Electronic Control Unit Software Calibration Not Programmed
DTC C056E 43: Electronic Control Unit Software EEPROM Incorrect Programming
DTC C056E 45: Electronic Control Unit Software Variant Not Programmed
DTC C056E 46: Electronic Control Unit Software Configuration Not Programmed
DTC C056E 47: Electronic Control Unit Software VIN Not Programmed
DTC C056E 48: Electronic Control Unit Software Security Code Not Programmed
DTC C056E 4A: Electronic Control Unit Software Programming Checksum Error
DTC C056E 4B: Electronic Control Unit Software Calibration Not Learned
DTC C056E 5A: Electronic Control Unit Software Not Plausible
DTC C056E 71: Electronic Control Unit Software Invalid Data
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
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
| © Copyright Chevrolet. All rights reserved |
| © Copyright Chevrolet. All rights reserved |
