Pinpoint Test J: SECM Internal Fault Concern
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
With the ignition ON, the SECM monitors various inputs to detect if a fault is present.
The SECM is the controlling ECU for the heated steering wheel feature. The SECM monitors the heated steering wheel system for errors and reports a DTC if an error is found.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| SECM C100C:27 | Steering Tracking: Signal Rate Of Change Above Threshold | Sets when the adaptive steering rotor speed is faster than the programmed threshold. |
| SECM C1039:75 | Active Front Steering (AFS) Lock: Emergency Position Not Reachable | Sets when the SECM cannot activate the motor to reach the emergency lock position. |
| SECM U2001:53 | Reduced System Function: Deactivated | This DTC is informational only and is used in the factory for system check at the end of assembly. This DTC sets when the adaptive steering system has been locked. |
| SECM U2016:47 | Control Module Main Software: Watchdog/Safety μC Failure | Sets when the SECM experiences an internal error. This DTC setting multiple times is a trigger condition for DTC U3000:96. |
| SECM U201A:02 | Control Module Main Calibration Data: General Signal Failure | This DTC is for information only. This DTC sets if the tuning mode of the SECM has not been activated. The tuning mode is set at the end of assembly. |
| SECM U201A:53 | Control Module Main Calibration Data: Deactivated | Sets when the SECM detects a failure or the heated steering wheel thermistor. |
| SECM U3000:18 | Control Module: Circuit Current Below Threshold | Sets when the SECM detects the electrical current to the locking solenoid is below a specified level. |
| SECM U3000:45 | Control Module: Program Memory Failure | Sets when the SECM detects an internal fault. |
| SECM U3000:54 | Control Module: Missing Calibration | Sets when the SECM detects an internal fault. |
| SECM U3000:96 | Control Module: Component Internal Failure | Sets when the SECM detects an internal fault. |
Possible Sources
- Incorrect sensor input
- SECM