Pinpoint Test BD: PSCM (Power Steering Control Module) DTC (Diagnostic Trouble Code) U3001:68
WARNING: This page is about a different car, the 2021 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Power Steering Controls for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Power Steering - System Operation and Component Description .
Description
- When the ignition is set to OFF, the PSCM remains powered up for a short period of time to store data in memory. When the ignition is set to ON, the PSCM retrieves this information and if the information is missing or corrupted a DTC is set.
Pinpoint Test Applicability
- This test applies to PSCM DTC U3001:68 only. This test does not apply to any other module except the PSCM.
DTC Diagnostic Strategy
- If the module DTC list results in a large number of Diagnostic Trouble Codes (DTCs), diagnose all module hard faults first (C102D, C1B00, C200B, C200C, C200D, U2011 and U3000) before diagnosing any network faults (lost communication or invalid data). If voltage concern Diagnostic Trouble Codes (DTCs) are present, diagnose those after any module hard faults and before any network faults. Diagnose all current and active Diagnostic Trouble Codes (DTCs) before diagnosing any historic Diagnostic Trouble Codes (DTCs).
Pinpoint Test Purpose
- To verify PSCM U3001:68 is present and provide diagnostics if DTC U3001:68 is currently present and active in the PSCM.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PSCM U3001:68 | Control Module Improper Shutdown Performance: Event Information | This DTC sets after the PSCM experiences a momentary loss of vehicle voltage. Prior to shutting down, the PSCM stores data in memory, when the ignition is set to ON, the PSCM reads this data and if it is missing or corrupted, this DTC sets. Therefore, the presence of DTC U3001 means the loss of vehicle voltage occurred prior to the DTC being set. Consult the DTC Index for additional information if needed. This DTC also sets if any of the charging system (i.e., battery, alternator, etc.) components, fuses, wiring or connections between the charging system and the PSCM are corroded, loose, damaged or disconnected. |
Possible Sources
- Fuse(s)
- Wiring, terminals, or connectors
- 12-volt battery
- Charging system
Visual Inspection and Pre-checks
- Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
- Make sure the vehicle battery terminals are tightened to their correct torque specifications.
- Make sure all PSCM fuses in the BJB and high-current BJB are OK.
Pinpoint Tests BD: PSCM DTC U3001 Control Module Improper Shutdown Performance