Code Definition

P1192 — Fuel pressure sensor supply voltage fault

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

About P1192

P1192 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 P1192 is stored, the module has detected 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.

P1192 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 fuel pressure sensor reports rail pressure to the Engine Control Module (ECM) so that the module can close the loop on the fuel pressure regulator or the high pressure pump metering valve and hold the commanded rail pressure. Like most analogue sensors it is fed a regulated supply, normally a 5V reference, along with a sensor ground and a signal return. DTC P1192 is stored when the ECM detects that the supply voltage to the fuel pressure sensor is outside its permitted range, either pulled low by a short or a heavy load on the circuit, lost altogether through an open, or raised by a short ...

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