Audi C102229
Lateral acceleration 1 implausible signal
Quick answer
Audi DTC C102229 means “Lateral acceleration 1 implausible signal.” For applicable 2019–2020 US Audi e-tron vehicles, Audi documented that it may be stored in the ABS control module with multiple cluster warnings, including an ESC warning, during a vehicle sleep-mode/wake-up timing condition.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does C102229 mean?
Audi DTC C102229 means “Lateral acceleration 1 implausible signal.” For applicable 2019–2020 US Audi e-tron vehicles, Audi documented that it may be stored in the ABS control module with multiple cluster warnings, including an ESC warning, during a vehicle sleep-mode/wake-up timing condition.
2. Technical explanation
Audi’s cited manufacturer communication identifies C102229 as a lateral-acceleration-signal plausibility fault stored in ABS control module J104 (address word 0003). The communication says that, while the vehicle enters sleep mode, opening a door or connecting the charger during a small timing window can wake the bus and mistakenly cause this DTC to be stored.
3. What system is affected?
ABS control module J104 (address word 0003); the evidence also associates the condition with ESC warning indication.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Multiple warning lights in the instrument cluster.
- ESC warning light on.
6. Possible causes
- Audi documented a sleep-mode/wake-up timing condition: while the vehicle is entering sleep mode, waking the bus—for example by opening a door or connecting the charger—can mistakenly cause C102229 to be stored.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis by an Audi service provider if warning lights or the ESC warning are present.
- Record the warning messages and whether the door was opened or the charger was connected as the vehicle was entering sleep mode.
10. Step-by-step troubleshooting
- Have the ABS control module J104 checked for stored DTC C102229.
- Have the service provider evaluate the documented sleep-mode/wake-up scenario described in Audi’s manufacturer communication.
11. When to contact service
Contact an Audi service provider for diagnosis, particularly if multiple cluster warnings or an ESC warning are active.
12. What the service center may check
- Scan ABS control module J104 (address word 0003) for C102229.
- Review whether the event occurred when a door was opened or the charger was connected while the vehicle was entering sleep mode.
- Check for the other DTCs listed by Audi in the same communication: C051F00/C052000, C102029, and U015100.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Audi e-tron · 2019–2020 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 10163426, Audi reference A4519132055702_1, published July 26, 2019. It applies to 2019–2020 Audi e-tron vehicles in the supplied evidence and documents the sleep-mode/wake-up condition associated with C102229.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10163426 (Audi A4519132055702_1): https://static.nhtsa.gov/odi/tsbs/2019/MC-10163426-0001.pdf
19. Frequently asked questions
What does Audi code C102229 mean?
It means “Lateral acceleration 1 implausible signal.”
What warnings may occur with C102229?
Audi documented multiple instrument-cluster warning lights and an ESC warning light.
Can connecting the charger be related to this code?
Audi documented that connecting the charger while the vehicle is entering sleep mode can wake the bus in a small timing window and mistakenly cause the DTC to be stored.
Which vehicles are supported by the supplied applicability evidence?
2019–2020 Audi e-tron vehicles in the US.