Symptom Chart - Steering System

SYMPTOM CHART - STEERING SYSTEM

Condition	Possible Sources	Action
No communication with the Power Steering Control Module (PSCM)	Wiring, terminals or connectors Fuse(s) PSCM	Refer to MODULE COMMUNICATIONS NETWORK article to diagnose the no communication problem.
Excessive steering wheel play	Steering column shaft/U-joints Steering linkage Steering gear	Go to PINPOINT TEST B .
Steering system drift/pull/wander	Steering column shaft/U-joints Steering column Steering gear mounts Steering column torsion bar	Go to PINPOINT TEST C .
Poor returnability/sticky steering	Binding lower steering column shaft coupling/U-joints Loose, worn or damaged steering linkage Binding suspension components Binding steering gear Binding steering column bearing(s) Binding steering column shaft dash panel seal Steering wheel position sensor not calibrated Alignments/suspension	Go to PINPOINT TEST D .
Lack of assist or inconsistent assist	Suspension components Steering components Wiring terminals or connectors Low battery/charging system voltage	Go to PINPOINT TEST D .
The active park assist system does not activate	DTCs present in PAM , PSCM and/or ABS module.	RETRIEVE and RECORD all DTCs. DIAGNOSE all PAM DTCs before diagnosing any PSCM or ABS module DTCs. For PAM and ABS module DTCs, Refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULE article. For PSCM DTCs, Refer to the POWER STEERING CONTROL MODULE (PSCM) DTC CHART in this service information.
The active park assist system deactivates during parking maneuvers	Driver input via steering wheel	Refer customer to the active park assist service information of the Owner's Literature for correct system operation.
	DTCs present in PAM , PSCM and/or ABS module.	RETRIEVE and RECORD all DTCs. DIAGNOSE all PAM DTCs before diagnosing any PSCM or ABS module DTCs. For PAM and ABS module DTCs, Refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULE article. For PSCM DTCs, Refer to the POWER STEERING CONTROL MODULE (PSCM) DTC CHART in this service information.