P1135 — BMW — O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1

P1135 (BMW): O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1 — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain