Codes › GENERIC › DTC-OBD2 › P0155
GENERIC • DTC-OBD2 • P0155 Category: ElectricalO2 Sensor Heater Circuit Malfunction (B2S1)
Front oxygen sensor heater issue on bank 2.
This code indicates a fault in the heater circuit for the front oxygen sensor on bank 2. A failed heater can cause slow warm-up and emissions readiness issues. Wiring, fuses, and the sensor itself should be checked.
Related DTC-OBD2 codes
- DTC-OBD2 P0650 — Malfunction Indicator Lamp Control Circuit
- DTC-OBD2 P0642 — Sensor Reference Voltage A Circuit Low
- DTC-OBD2 P2213 — NOx Sensor Heater Circuit Malfunction
- DTC-OBD2 P0670 — Glow Plug Control Module Circuit
- DTC-OBD2 P0651 — Sensor Reference Voltage B Circuit Open
- DTC-OBD2 P0641 — Sensor Reference Voltage A Circuit Open
Frequently Asked Questions
What does DTC-OBD2 code P0155 mean?
DTC-OBD2 code P0155 is a factory equipment code used by GENERIC to describe a specific vehicle configuration or component.
Where can I find DTC-OBD2 code P0155 on my car?
This code is typically found in the vehicle’s factory build data, service documentation, or can be confirmed by decoding the VIN.
Does DTC-OBD2 code P0155 affect maintenance or parts?
Yes. Factory codes determine correct parts selection, software compatibility, and service procedures for your exact vehicle configuration.
How can I verify DTC-OBD2 code P0155 for my vehicle?
The most reliable way is to order a complete Vehicle Data Sheet decoded directly from your vehicle’s VIN.