Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 82 (5.2L - GENERIC SCAN TOOL, ENGINE CODE(S): BXA (ST-GENERIC SCAN TOOL))ST - GENERIC SCAN TOOLDIAGNOSTIC TROUBLE CODE (DTC) TABLESSAE P2XXX-DTCSADDITIONAL EMISSION REGULATIONS
2009 Audi A6 Base
Additional emission regulations
2009 Audi A6 BaseSECTION Additional emission regulations
WARNING: This page is about a different car, the 2009 Audi S6, 2008 Audi S6, and 2007 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
| DTC | Error Message | Diagnostic Procedure | Malfunction Criteria and Threshold Value | Secondary Parameters with Enable Conditions | Monitoring Time Length | Frequency of checks, MIL Illum |
|---|---|---|---|---|---|---|
| P2400 | Evaporative Emission System Leak Detection Pump Control Circuit/Open |
|
Signal voltage > 4.4- 5.5 V |
|
0.5 Seconds |
|
| P2401 | Evaporative Emission System Leak Detection Pump Control Circuit Low |
|
Signal voltage 3 V |
|
0.5 Seconds |
|
| P2402 | Evaporative Emission System Leak Detection Pump Control Circuit High |
|
Signal current > 2.7-5.5 A |
|
0.5 Seconds |
|
| P2403 | Evaporative Emission System Leak Detection Pump Sense Circuit/Open |
|
Low signal voltage > 10.4 Seconds |
|
11 Seconds |
|
| P2404 | Evaporative Emission System Leak Detection Pump Sense Range/Performance |
|
High signal voltage > 10.4 V |
|
11 Seconds |
|
| P2414 | O2 Sensor Exhaust Sample Error Bank 1, Sensor 1 |
|
|
|
10 Seconds |
|
| P2415 | O2 Sensor Exhaust Sample Error Bank 2 Sensor 1 |
|
|
|
10 Seconds |
|
| P2422 | Evaporative Emission System Vent Valve Stuck Closed | Check Evaporative Emission (EVAP) Canister Purge Regulator Valve N80. Refer to → Evaporative Emission (EVAP) Canister Purge Regulator Valve N80, checking | Time for pressure drop during 2nd leak check 1.45 Sec. |
|
140 Seconds |
|
| P2539 | Low Pressure Fuel System Sensor Circuit |
|
Signal voltage > 4.8 V | 5 Seconds |
|
|
| P2541 | Low Pressure Fuel System Sensor Circuit Low |
|
Signal voltage, 2.0 V | 5 Seconds |
|
|
| P2626 | O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1 |
|
O2S signal front> 4.8 V |
|
2 Seconds |
|
| P2629 | O2 Sensor Pumping Current Trim Circuit/Open Bank 2 Sensor 1 |
|
O2S signal front> 3, 2 V |
|
2 Seconds |
|
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.