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Audi A3 2000 1.6 Gasoline - Engine Controller Error 01314, No Communication, 06A 906 033 A

janusz20 21336 11
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  • #1 16804728
    janusz20
    Level 10  
    Posts: 8
    Rate: 3
    Board Language: polish
    Hello, I have a problem with Audi a3 2000 1.6 gasoline. Briefly describe the problem. In the evening I put the car in front of the house and the next day it did not start again. Everything turns on a functional battery. A neighbor came with the computer and cleared a few errors but one remained 01314 - no communication. I read on the net and got to the controller. In my car there is a driver with the numbers 06A 906 033 A and some numbers under the inscription Siemens 5WP43287 06. My question is if someone had a similar problem and coped with it and can I buy a driver with a different letter at the end? I am looking forward to your answers and thank you in advance.
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  • #2 16804734
    spinacz
    Level 42  
    Posts: 8519
    Help: 1190
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    Board Language: polish
    First thing in what module is this error?
    Connected to the engine controller?

    Added after 10 [minutes]:

    It's best to scan the whole car and upload this scan here.
  • #3 16804760
    janusz20
    Level 10  
    Posts: 8
    Rate: 3
    Board Language: polish
    I don't know what module: / engine control module, I think. He connected to the plug with a laptop and some program and did not connect to the engine controller itself. Audi A3 2000 1.6 Gasoline - Engine Controller Error 01314, No Communication, 06A 906 033 A
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  • #4 16804784
    spinacz
    Level 42  
    Posts: 8519
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    Then go to someone who knows about it and not to some Janusz with a cable.
    After what you wrote, there is nothing to advise.
  • #5 16804786
    janusz20
    Level 10  
    Posts: 8
    Rate: 3
    Board Language: polish
    Ok, if I catch a neighbor, we'll do it again. Is there any chance that this is something else less serious?
  • #6 16804792
    spinacz
    Level 42  
    Posts: 8519
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    It is not known what this may be, the bundle may be damaged and some driver may be damaged.
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  • #7 16804983
    janusz20
    Level 10  
    Posts: 8
    Rate: 3
    Board Language: polish
    Audi A3 2000 1.6 Gasoline - Engine Controller Error 01314, No Communication, 06A 906 033 A
    Is this something I have in mind?
  • #8 16805119
    spinacz
    Level 42  
    Posts: 8519
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    And in the engine controller what errors?
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  • #9 16805355
    janusz20
    Level 10  
    Posts: 8
    Rate: 3
    Board Language: polish
    I do not know what mistakes because I did not connect and I have nobody to connect with
  • #10 16805439
    spinacz
    Level 42  
    Posts: 8519
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    Rate: 2611
    Board Language: polish
    Well, you put a photo when you do the diagnosis. You have no idea or your neighbor.
  • #11 20813523
    szumpat
    Level 1  
    Posts: 1
    Rate: 1
    Board Language: polish

    Did you fix the error? I have the same in the ABs controller and counter
  • #12 21035293
    thomassonss
    Level 10  
    Posts: 52
    Rate: 11
    Board Language: polish
    For owners of 1.6 MPI engines: this error most often means a damaged crankshaft position sensor (G28). Symptoms include car jerking, stalling, lack of power, and difficult starting.
    For some reason, the error appears both in the engine (where this sensor is directly mentioned, but for this you need a specific cable from VAG, not some ELM) and in the ESP, which is why many people look for the problem from the bottom side, i.e. communication between modules, checking the ground voltage charging, etc. My traction light came on, but not the check engine light.
    The sensor is located behind the oil filter and a replacement costs PLN 50-70.
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Topic summary

✨ The discussion revolves around a 2000 Audi A3 1.6 gasoline vehicle experiencing an engine controller error (01314 - no communication). The owner reports that the car failed to start after being parked overnight, despite having a functional battery. A neighbor attempted to diagnose the issue using a computer but could not connect to the engine controller. Participants suggest that the problem may stem from a damaged wiring harness or a faulty crankshaft position sensor (G28), which is common for this engine type. They recommend obtaining a proper diagnostic tool compatible with VAG systems for accurate error reading and suggest that replacing the crankshaft position sensor could resolve the issue.
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FAQ

TL;DR: For many Audi A3 1.6 MPI no-starts with DTC 01314, a PLN 50–70 fix solves it: “this error most often means a damaged crankshaft position sensor (G28).” [Elektroda, thomassonss, post #21035293]

Why it matters: This FAQ helps Audi A3 8L owners quickly pinpoint 01314 causes, choose the right tools, and avoid unnecessary ECU purchases.

Quick Facts

What does fault code 01314 mean on an Audi A3 8L?

It indicates “Engine Control Module – No Communication.” On 1.6 MPI, owners often trace it to a failed crankshaft position sensor (G28), which also triggers communication complaints in other modules. "This error most often means a damaged crankshaft position sensor (G28)." [Elektroda, thomassonss, post #21035293]

How do I diagnose 01314 if I can’t connect to the engine ECU?

Scan the whole car with a proper VAG tool and share the full autoscan. Identify which module reports 01314, then proceed to ECU power/ground checks and sensor inputs. Generic cable attempts give incomplete data and waste time. [Elektroda, spinacz, post #16804734]

Where is the crankshaft position sensor (G28) on the 1.6 MPI, and how much is it?

It sits behind the oil filter. Typical aftermarket replacements cost PLN 50–70. Many owners restore starting and drivability after replacing this sensor on 1.6 MPI engines. [Elektroda, thomassonss, post #21035293]

Can 01314 show up in ABS/ESP or the instrument cluster too?

Yes. Owners report 01314 in ABS/ESP and the cluster (“counter”) when the engine ECU stops communicating, even if the root cause is engine-side like G28. [Elektroda, szumpat, post #20813523]

Do I need a specific cable to read the engine ECU on this car?

Use a VAG-capable interface (e.g., VCDS/VAG-COM). ELM-type readers often fail to connect to the engine ECU or miss key faults like G28. [Elektroda, thomassonss, post #21035293]

What symptoms point to a failed G28 sensor on the 1.6 MPI?

Jerking, stalling, weak power, and hard starting are typical. Some owners see the traction light, while the Check Engine light stays off. Replacing G28 restores normal running. [Elektroda, thomassonss, post #21035293]

Quick check: How can I confirm G28 failure in three steps?

  1. Perform a full autoscan with a VAG tool and note 01314 and engine RPM while cranking.
  2. If RPM reads 0 while cranking, inspect/replace G28 behind the oil filter.
  3. Clear codes and retest starting and drivability. [Elektroda, thomassonss, post #21035293]

Will clearing codes remove 01314 for good?

No. Clearing may temporarily hide it, but 01314 returns until the root cause is fixed. Owners reported clearing several errors and 01314 remained. [Elektroda, janusz20, post #16804728]

My engine ECU won’t communicate at all—could wiring or the ECU be bad?

Yes. A damaged harness (loom) or a failed control unit can also block communication. Treat this as an edge case after checking the G28 and basic powers/grounds. [Elektroda, spinacz, post #16804792]

Can I replace ECU 06A 906 033 A with another letter variant?

Don’t buy an ECU yet. The thread provides no confirmed cross-compatibility. First, get a proper full scan and root-cause diagnosis, then match part and coding. [Elektroda, spinacz, post #16804784]

Which warning lights might I see with this issue?

You may see the traction/ESP light. The Check Engine light can stay off even with a failed G28 causing 01314 reports elsewhere. [Elektroda, thomassonss, post #21035293]

Is a neighbor’s generic laptop-and-cable setup good enough?

No. Poor tooling leads to confusion and no actionable data. Seek someone experienced with VAG diagnostics to save time and money. [Elektroda, spinacz, post #16804784]
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