DTC C056E without HP5
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 provide an overview of each diagnostic category. |
DTC Descriptor
DTC C056E 42: ECU Hardware Performance Calibration Data Set Not ProgrammedCircuit/System Description
After replacement of the power steering control module (PSCM), the PSCM must be configured with the proper tuning profile using the service programming system (SPS).
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
This DTC will set if the PSCM has not undergone SPS reprogramming.
Actions Taken When DTC Sets
| • | DTC C056E 42 is stored in memory. |
| • | The driver information center (DIC) displays the SERVICE POWER STEERING warning message. |
| • | Steering assist is set to a default level. |
Conditions for Clearing the DTC
| • | A current DTC will clear after the PSCM has been configured with the proper tuning profile. |
| • | A history DTC will clear after 100 consecutive malfunction-free ignition cycles from when the PSCM has been configured with the proper tuning profile. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Power Steering System Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Verify DTC C056E 4B is not set.
| ⇒ | If DTC is set, perform the steering wheel angle and torque calibration procedure. If the DTC resets, replace the PSCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for PSCM replacement, setup, and programming
DTC C056E with HP5
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 provide an overview of each diagnostic category. |
DTC Descriptor
DTC C056E 4B: ECU Software Performance Calibration Not LearnedDTC C056E 42: ECU Software Performance Calibration Data Set Not Programmed
DTC C056E 45: ECU Software Performance Variant Not Programmed
DTC C056E 46: ECU Software Performance Configuration Not Programmed
Circuit/System Description
DTC C056E 4B
After either replacing the power steering control module or steering gear assembly, the PSCM Centering Procedure must be performed.
DTC C056E 42
After replacement of the power steering control module, the PSCM must be configured with the proper calibration file using the service programming system (SPS).
DTC C056E 45
After replacement of the power steering control module or steering gear assembly, the PSCM must learn the mechanical center of the steering gear.
DTC C056E 46
After a battery disconnection or loss of battery, the power steering control module PSCM must undergo initialization.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
DTC C056E 4B
This DTC will set if the PSCM has not been calibrated using the PSCM Centering Procedure PSCM Centering Procedure.
DTC C056E 42
This DTC will set if the PSCM has not undergone SPS reprogramming.
DTC C056E 45
This DTC will set if the PSCM has not learned the mechanical center of the steering gear by turning the steering wheel 90 degrees to the left, and then 90 degrees past center to the right.
DTC C056E 46
This DTC will set if the PSCM has not undergone initialization by turning the steering wheel left and right lock-to-lock.
Actions Taken When DTC Sets
| • | The driver information center (DIC) displays the SERVICE POWER STEERING warning message. |
| • | Steering assist is set to a default level. |
Conditions for Clearing the DTC
DTC C056E 4B
DTC will clear after the PSCM has been calibrated using the PSCM Centering Procedure.
DTC C056E 42
DTC will clear after the PSCM has been configured with the proper calibration file.
DTC C056E 45
DTC will clear after the PSCM has learned the mechanical center of the steering gear.
DTC C056E 46
DTC will clear after the PSCM has undergone initialization.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Power Steering System Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
B056E 4B
- Verify DTC C056E 4B is not set.
| ⇒ | If the DTC is set, perform the PSCM Centering Procedure. If DTC resets, replace the PSCM. |
B056E 42
- Verify DTC C056E 42 is not set.
| ⇒ | If the DTC is set, reprogram the PSCM. If the DTC resets, replace the PSCM. |
B056E 45
- Verify DTC C056E 45 is not set.
| ⇒ | If the DTC is set, perform the PSCM Centering Procedure. If DTC resets, replace the PSCM. |
B056E 46
- Verify DTC C056E 46 is not set.
| ⇒ | If the DTC is set, turn the steering wheel all the way to the left, then all the way to the right, then return the wheel to center position. If the DTC resets, replace the PSCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for PSCM replacement, setup, and programming |
