C1A03 on Nissan vehicles
C1A03 is named on 14 Nissan model years (2017–2018): 30 manufacturer filings and 0 owner reports in NHTSA’s files, across Rogue, Altima, Armada, Maxima, Murano and 2 more.
Which Nissan model years name C1A03
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Nissan Rogue | Forward Collision Avoidance | 3 | — |
| 2017 Nissan Rogue | Forward Collision Avoidance | 3 | — |
| 2018 Nissan Altima | Equipment | 2 | — |
| 2018 Nissan Armada | Equipment | 2 | — |
| 2018 Nissan Maxima | Equipment | 2 | — |
| 2018 Nissan Murano | Equipment | 2 | — |
| 2018 Nissan Pathfinder | Equipment | 2 | — |
| 2018 Nissan Sentra | Equipment | 2 | — |
| 2017 Nissan Altima | Equipment | 2 | — |
| 2017 Nissan Armada | Equipment | 2 | — |
| 2017 Nissan Maxima | Equipment | 2 | — |
| 2017 Nissan Murano | Equipment | 2 | — |
| 2017 Nissan Pathfinder | Equipment | 2 | — |
| 2017 Nissan Sentra | Equipment | 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.
Nissan filings that name C1A03
Source: NHTSA manufacturer communicationsBulletins and campaigns Nissan filed with NHTSA whose summary names C1A03. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- NTB18-008 Service bulletin2018-02-01 · Equipment — Other — Owners/Service/Other Manual
- ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01 SERVICE INFORMATION This bulletin applies only to vehicles equipped with Automatic Emergency Braking (AEB) or Forward Emergency Braking (FEB). 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
- NTB18-008A Service bulletin2021-03-24 · Forward Collision Avoidance
- ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01 SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
What C1A03 means
Source: SAE J2012 / OBD-IIC1A03 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 Nissan 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 C1A03 a known problem on Nissan vehicles?
It is a documented one: NHTSA's files hold 30 manufacturer filings and 0 owner reports naming C1A03 on 14 Nissan model years (2017–2018). 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 Nissan models does C1A03 appear on most?
2018 Rogue (3 documents), 2017 Rogue (3 documents), 2018 Altima (2 documents).
Does C1A03 on a Nissan 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.