Code Definition

P1297 — Turbocharger or throttle valve loose hose connection

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

About P1297

P1297 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.

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.

P1297 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

On a turbocharged engine the compressor outlet is connected to the throttle body through the intercooler and a run of charge air pipework, and the Engine Control Module measures the pressure in that system with the charge air pressure sensor. It compares that reading against the pressure it expects for the current wastegate or vane position, airflow and engine load. DTC P1297 is stored when the module detects a pressure loss between the turbocharger and the throttle valve that is consistent with a disconnected, split or leaking hose rather than a sensor or control fault. Because compressed cha...

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