C1A04 on Infiniti vehicles
C1A04 is named on 15 Infiniti model years (2017–2019): 60 manufacturer filings and 0 owner reports in NHTSA’s files, across Q50, Q70, QX60, Q60, QX30 and 3 more.
Which Infiniti model years name C1A04
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Infiniti Q70 | Equipment | 6 | — |
| 2018 Infiniti QX60 | Equipment | 6 | — |
| 2017 Infiniti Q50 | Equipment | 6 | — |
| 2017 Infiniti Q70 | Equipment | 6 | — |
| 2017 Infiniti QX60 | Equipment | 6 | — |
| 2018 Infiniti Q50 | Electrical System | 4 | — |
| 2018 Infiniti Q60 | Equipment | 3 | — |
| 2018 Infiniti QX30 | Equipment | 3 | — |
| 2018 Infiniti QX80 | Equipment | 3 | — |
| 2017 Infiniti Q60 | Equipment | 3 | — |
| 2017 Infiniti QX30 | Equipment | 3 | — |
| 2017 Infiniti QX50 | Equipment | 3 | — |
| 2017 Infiniti QX70 | Equipment | 3 | — |
| 2017 Infiniti QX80 | Equipment | 3 | — |
| 2019 Infiniti QX50 | Service Brakes | 2 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Infiniti filings that name C1A04
Source: NHTSA manufacturer communicationsBulletins and campaigns Infiniti filed with NHTSA whose summary names C1A04. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- ITB18-005 Service bulletin2018-02-01 · Equipment — Other — Owners/Service/Other Manual
- ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01 SERVICE INFORMATION SERVICE INFORMATION If the following ICC/ADAS codes are stored, make sure to follow the diagnostic procedures in the Electronic Service Manual (ESM) before replacing any parts. C1A03 ? VEHICLE SPEED SENSOR -The diagnostic procedure in the ESM includes check and, if needed, repair for ABS DTCs before replacing ADAS components. -I
- ITB18-005a Service bulletin2018-03-26 · Vehicle Speed Control — Cruise Control
- ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01 SERVICE INFORMATION This bulletin has been amended. The Applied Vehicles section has been revised. No other changes have been made. Please discard previous versions of this bulletin.
- ITB18-005B Service bulletin2021-03-24 · Electrical System
- ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01 SERVICE INFORMATION This bulletin has been amended. Please see AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
What C1A04 means
Source: SAE J2012 / OBD-IIC1A04 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what Infiniti and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs C1A04 a known problem on Infiniti vehicles?
It is a documented one: NHTSA's files hold 60 manufacturer filings and 0 owner reports naming C1A04 on 15 Infiniti model years (2017–2019). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Infiniti models does C1A04 appear on most?
2017 Q50 (6 documents), 2018 Q70 (6 documents), 2017 Q70 (6 documents).
Does C1A04 on a Infiniti mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.