P0917 Gear Shift Position Circuit High

P0917 points to a high gear shift position circuit. The position signal is above expected range, open, or shorted to voltage.

Code status

Needs verification

Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.

System: Transmission
Scope: iso-sae-controlled-p0
Standard: SAE J2012 / ISO 15031-6
Source: legacy-import

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not condemn the control module until the high position circuit is isolated from wiring and connector faults.

Useful checks before replacing parts

Check gear position signal, reference, ground, connector continuity, open circuits, short-to-voltage faults, and module input voltage.
Inspect connector corrosion, harness damage, sensor mounting, actuator travel, water intrusion, and recent transmission service points.
Compare live position data with commanded gear selection to see whether the high value is fixed or movement-related.

Related OBD-II codes

These nearby transmission entries can help compare wording and fault area. They may share the same verification status as the source database.