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Fault Codes

Real diagnosis guides for VW, Audi, Skoda and SEAT fault codes — what each code actually means, the causes ranked by real-world frequency, and honest repair costs before you visit a mechanic. Where a code can be tested on my own Skoda Rapid 1.0 TSI, the article includes my live OBD2 data.

Home » Fault Codes
DTC P2102 Volkswagen fault code guide: throttle motor circuit low, shown over a 1.0 TSI engine bay

DTC P2102 Volkswagen, Audi, Skoda and SEAT (P210200): Throttle Motor Circuit Low, Causes and Fix

Posted by By Ayush Sondhi September 17, 2026
A DTC P2102 Volkswagen, Audi, Skoda or SEAT fault means the wire that powers your throttle motor is touching metal…
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Open bonnet of a Volkswagen Golf TSI with the fault code DTC P2101, a throttle actuator fault on VW, Audi and Skoda.

DTC P2101 on Volkswagen, Audi, Skoda and SEAT (P210100): What It Means and How to Fix It

Posted by By Ayush Sondhi September 8, 2026
DTC P2101 on a Volkswagen, Audi, Skoda or SEAT means the engine computer told the throttle motor to move the…
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P2463 fault code, DPF soot accumulation, shown over a VW TDI diesel engine bay

P2463 Code on VW, Audi and Skoda (P246300): DPF Soot Accumulation, What To Do

Posted by By Ayush Sondhi August 23, 2026
Soot past the limit: read your soot load, then match the fix. Most cases end free or under £100.
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P0300 fault code guide featured image on a 1.0 TSI engine bay, usually a coil or spark plugs

P0300 Code on VW, Audi & Skoda: Random Misfire, What To Do

Posted by By Ayush Sondhi August 2, 2026
P0300 code on a VW, Audi or Skoda means your engine is misfiring, the code's official name is "Random or…
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DTC P2002 fault code, also shown as P200200, on VW, Audi, Skoda and SEAT diesel scan tools

DTC P2002 (P200200) on VW, Audi, Skoda & SEAT: Don’t Buy a DPF Yet

Posted by By Ayush Sondhi July 19, 2026
This article contains affiliate links. As an Amazon Associate TheCarLane earn from qualifying purchases, at no extra cost to you.…
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p0171 fault code on vw-skoda-audi

P0171 Fault Code on VW, Audi & Skoda: Your Engine Decides the Fix

Posted by By Ayush Sondhi July 15, 2026
P0171 Fault Code means your engine is running lean: it's getting more air than fuel. The engine's computer noticed the…
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P2100 code diagram showing an open circuit between the ECU and throttle body on VW, Audi and Skoda

P2100 Code On VW, Audi & Skoda: Don’t Buy a Throttle Body Yet

Posted by By Ayush Sondhi July 7, 2026
The P2100 code stands for "Throttle Actuator Control Motor Circuit / Open." Basically, your car's computer has lost electrical contact…
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P0441 EVAP fault code on VW, Audi and Skoda

P0441 On VW, Skoda & Audi: How Serious Is This EVAP Code?

Posted by By Ayush Sondhi June 16, 2026
P0441 means your car's evaporative emission control system is not moving fuel vapour through the purge valve at the rate…
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VW TDI diesel engine bay

P20EE00/P20EE Fault Code on VW, Audi, Skoda & SEAT: What It Means and What to Do

Posted by By Ayush Sondhi June 10, 2026
The P20EE code indicates "SCR NOx Catalyst Efficiency Below Threshold (Bank 1).” Basically, your diesel’s AdBlue system isn’t removing enough…
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P2015 intake manifold fault on a VW, Audi and Skoda TDI

P2015 Code (P201500) on VW, Audi & Skoda: Skip the New Manifold

Posted by By Ayush Sondhi May 23, 2026
The P2015 fault code (P201500) means the swirl flaps inside the intake manifold aren't where the ECU told them to…
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TheCarLane helps car owners understand warning lights, fault codes, and engine data before spending money at a garage. Independent, specialising in Volkswagen Group cars, and tested on my own car wherever possible.
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