P1391 — Chevrolet — Wheel Speed Sensor 1, G-Sensor Circuit Performance

P1391 (Chevrolet): Wheel Speed Sensor 1, G-Sensor Circuit Performance — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Wheel Speed Sensor 1, G-Sensor Circuit Performance. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain