• | 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. |
The power steering control module (PSCM) continuously monitors the internal circuitry within the module.
The ignition is ON.
This DTC will set if the PSCM detects an internal malfunction within the module.
• | DTC C056D is stored in memory. |
• | The driver information center (DIC) displays the SERVICE POWER STEERING warning message. |
• | No steering assist. |
• | A current DTC will clear on the next malfunction free ignition cycle. |
• | A history DTC will clear after 100 consecutive malfunction-free ignition cycles, without the repeat of the internal malfunction. |
Power Steering System Description and Operation
Control Module References for scan tool information
⇒ | If the DTC is set, clear the DTC, and operate the vehicle within the conditions for setting the DTC. Verify the DTC does not reset. If the DTC resets, replace the PSCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for PSCM replacement, setup, and programming