P0338 Crankshaft Position Sensor A Circuit High Input

P0338 indicates a high input from crankshaft position sensor A. The crank signal circuit is higher than expected or stuck high.

Code status

Needs verification

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

System
Ignition / Misfire
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 replace the control module before checking the crank sensor signal circuit end to end.

Useful checks before replacing parts

Related OBD-II codes

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