104 distinct codes across 127 real Audi diagnostics.
104 distinct codes across 127 real diagnostics on Audi, including the Audi-specific ones no generic code list can decode.
Audi-specific codes
These are manufacturer-specific, which means the same code on another marque is a different fault. That is exactly why they have no page of their own and no entry in any generic code list. Scoped to Audi and ranked by how often we have actually seen them, they are a claim we can stand behind.
- P164D, seen in 3 Audi diagnostics
- P334A, seen in 3 Audi diagnostics
- U1121, seen in 3 Audi diagnostics
- B1162, seen in 2 Audi diagnostics
- C1041, seen in 2 Audi diagnostics
- P191A, seen in 2 Audi diagnostics
- P3020, seen in 2 Audi diagnostics
- B1049, seen in 1 Audi diagnostic
- B108C, seen in 1 Audi diagnostic
- B108D, seen in 1 Audi diagnostic
- B1092, seen in 1 Audi diagnostic
- B10CE, seen in 1 Audi diagnostic
- B10E8, seen in 1 Audi diagnostic
- B1183, seen in 1 Audi diagnostic
- B11AF, seen in 1 Audi diagnostic
- B12CC, seen in 1 Audi diagnostic
- B1304, seen in 1 Audi diagnostic
- B13BC, seen in 1 Audi diagnostic
- C1034, seen in 1 Audi diagnostic
- C1047, seen in 1 Audi diagnostic
- C1048, seen in 1 Audi diagnostic
- C1103, seen in 1 Audi diagnostic
- C11E2, seen in 1 Audi diagnostic
- P1016, seen in 1 Audi diagnostic
- P106B, seen in 1 Audi diagnostic
- P1297, seen in 1 Audi diagnostic
- P13D4, seen in 1 Audi diagnostic
- P1545, seen in 1 Audi diagnostic
- P1570, seen in 1 Audi diagnostic
- P1680, seen in 1 Audi diagnostic
- P176A, seen in 1 Audi diagnostic
- P179E, seen in 1 Audi diagnostic
- P1912, seen in 1 Audi diagnostic
- P3007, seen in 1 Audi diagnostic
- P3348, seen in 1 Audi diagnostic
- U1011, seen in 1 Audi diagnostic
- U1123, seen in 1 Audi diagnostic
- U11F9, seen in 1 Audi diagnostic
- U1400, seen in 1 Audi diagnostic
- U1406, seen in 1 Audi diagnostic
- U140A, seen in 1 Audi diagnostic
- U3501, seen in 1 Audi diagnostic
Standard codes we see most on Audi
These are standardised, so they mean the same thing on every vehicle. The counts are what we see on Audi specifically.
- P0562, System voltage low
- U0416, Invalid data received from vehicle dynamics control module
- P2002, Diesel particulate filter efficiency below threshold, bank 1
- P0299, Turbocharger underboost condition
- B2000, not individually documented
- P0222, Throttle or pedal position sensor B circuit low
- P0302, Cylinder 2 misfire detected
- P0322, Ignition or distributor engine speed input circuit, no signal
- P0401, Exhaust gas recirculation flow insufficient
- P0C2E, not individually documented
- P204B, not individually documented
- P2458, Diesel particulate filter regeneration duration
- P2563, Turbocharger boost control position sensor circuit range/performance
- U0121, Lost communication with ABS control module
- P0068, MAP/MAF to throttle position correlation
- P0101, Mass or volume air flow circuit range/performance
- P0300, Random or multiple cylinder misfire detected
- P0301, Cylinder 1 misfire detected
- P0321, Ignition or distributor engine speed input circuit range/performance
- P0507, Idle air control system RPM higher than expected
- P0A7D, not individually documented
- P2188, System too rich at idle, bank 1
- P225B, not individually documented
- P0019, Crankshaft/camshaft position correlation, bank 2 sensor B
- P0089, Fuel pressure regulator 1 performance
- P00AF, Turbocharger boost control module performance
- P00B7, Engine coolant flow low or performance
- P0100, Mass or volume air flow circuit
- P0102, Mass or volume air flow circuit low input
- P0121, Throttle or pedal position sensor A circuit range/performance
- P0172, System too rich, bank 1
- P0207, Injector circuit open, cylinder 7
- P0236, Turbocharger boost sensor A circuit range/performance
- P0303, Cylinder 3 misfire detected
- P0400, Exhaust gas recirculation flow
- P0402, Exhaust gas recirculation flow excessive
- P0403, Exhaust gas recirculation control circuit
- P0420, Catalyst system efficiency below threshold, bank 1
- P0441, Evaporative emission system incorrect purge flow
- P0444, Evaporative emission system purge control valve circuit open
What tends to go wrong on Audi
By share of the codes we have seen on this marque. A description of our own caseload, not a reliability ranking.
- Bus communication, 27 code sightings
- Powertrain, manufacturer-specific, 22 code sightings
- Body, manufacturer-specific, 16 code sightings
- Diesel particulate filter, 14 code sightings
- Charging and system voltage, 12 code sightings
- Not yet classified, 9 code sightings