P1187 — BMW — O2 Sensor Heater Control Circuit Bank 2 Sensor 2

P1187 (BMW): O2 Sensor Heater Control Circuit Bank 2 Sensor 2 — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

O2 Sensor Heater Control Circuit Bank 2 Sensor 2. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain