Code Definition

P1180 — Heated Oxygen Sensor 1 bank 1 pump current shorted to positive

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Audi

About P1180

P1180 is a manufacturer-specific powertrain diagnostic trouble code recorded for Audi vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1180 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit; a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1180 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The bank 1 upstream lambda sensor on these engines is a wideband or broadband type built around a Nernst measuring cell and an oxygen pump cell. The Engine Control Module (ECM) drives a small controlled current through the pump cell in order to hold the Nernst cell at its reference value, and it is the magnitude and direction of that pump current that the ECM reads as the actual air fuel ratio. DTC P1180 is stored when the ECM detects the pump current circuit for bank 1 sensor 1 shorted to a positive supply, meaning the circuit has been pulled up by an external voltage and the current the ECM ...

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