Pinpoint Test Purpose

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

This test verifies the presence of PSCM DTC C1023 and determines if the cause is mechanical or electrical in nature.

T1: VISUAL INSPECTION

Carry out a visual inspection.
- Check for even tire sizes and pressures as per the manufacturer's specification.
- Check for uneven tire wear.
- Check the outer tie rod ends and suspension ball joints for impeded movement.
- Verify that the steering column shaft rotates freely and is not grounded against other vehicle components.
- Check the steering gear for correct installation, tight spots and uneven operation.
- Check the steering and suspension for bent or damaged components.
- Check the steering and suspension geometry.

Has a concern been identified?

Yes	No
REPAIR the concern identified during the visual inspection. CLEAR the DTCs. Using a diagnostic scan tool, RESET the compensation value for the pull/drift compensation function and the compensation value for the steering straight ahead position. TEST the system for normal operation.	CLEAR the DTCs. Using a diagnostic scan tool, RESET the compensation value for the pull/drift compensation function and the compensation value for the steering straight ahead position. TEST the system for normal operation.