Chery Fault Codes, Explained in Chery Context
Written and edited by Ethan Cole, Editor-in-Chief · ✓ Technically reviewed by Daniel Wei Chen — Senior Chinese Automotive Diagnostics & Repair Specialist, Sydney · 22 August 2026.
Standard code definitions (SAE J2012 / ISO 15031-6) connected to what we’ve actually documented across Chery, Omoda and Jaecoo. Two honesty notes up front: Chery’s DCT and hybrid control codes are manufacturer-specific and publicly undocumented — anything a generic reader shows as P17xx/P18xx on these cars needs dealer-level tooling, and we don’t pretend otherwise. And one non-OBD warning outranks every code here: a brake warning light on a 2023–26 Tiggo 8 PRO or 2022–23 Omoda 5 means checking the brake-line recalls before anything else.
Codes documented so far
| Code | Standard meaning | Chery context |
|---|---|---|
| P0300 | Random / multiple misfire | The direct-injection turbo range’s service-item code — and when 95 RON matters |
| P0420 | Catalyst efficiency below threshold | Young fleet, so the usual ageing-cat story mostly doesn’t apply yet — which changes the suspect list |
| P0562 | System voltage low | Housekeeping first; hybrid 12V logic second |
How to read a code without fooling yourself
- The code is a symptom, not a diagnosis.
- Warranty first: most Cherys on Australian roads are inside the 7-year warranty — a persistent code is a free dealer conversation, not a parts-cannon session. Don’t clear it before they’ve seen it.
- Freeze-frame matters: cold start? E10 fill? after a battery change?
- P1xxx on a Chery: manufacturer territory — dealer tooling, not forum guesses.
Code definitions per SAE J2012; Chery context from our per-model problems research and the official Australian recall register. Manufacturer-specific codes without public documentation are not published.
Disclaimer: Information on this page is general guidance only and does not replace the manufacturer’s official documentation or the judgement of a qualified technician. Never open, touch or work on any orange high-voltage component. Fault-code behaviour varies between markets, model years and software versions. Last verified: 22 August 2026.