Skip to content

Chassis

C1A04

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

Narrow by vehicle

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

Scan worksheet →

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

View all ↗

Manufacturer communications

8

Original wording in English

View all ↗

SSM 55237 ↗

FORD

Some 2025-2026 Mustang GTD vehicles built on or before 28-Sep-2026 may exhibit one or more of the following hydraulic system warning messages displayed in the instrument panel cluster (IPC): "Suspension Fault Speed Limited to 80 MPH", "Driver Selectable Suspension Fault", "Front Lift Not Available", "Drive Mode Not Available" an…

NTB18-008A ↗

NISSAN

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.

ITB18-005B ↗

INFINITI

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.

NTB20-065 ↗

NISSAN

2017-2019 ARMADA; ENGINE DOES NOT CRANK IF YOU CONFIRM The engine will not crank and will not start, but the battery test result is OK, OR One of these DTCs are stored: ï‚· C1142 (PRESS SENSOR) ï‚· C1A04 (ABS/TCS/VDC SYSTEM) ï‚· C1A26 (ECD MODE MALFUNCTION) AND The color of the stop lamp switch is solid black, as shown in Figure…

Check vehicle applicability

42

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

View all ↗

MakeModelModel year
FordMUSTANG GTD ↗2026
FordMUSTANG GTD ↗2025
InfinitiM37 ↗2011
InfinitiQ50 ↗2018
InfinitiQ50 ↗2017
InfinitiQ50 HYBRID ↗2018
InfinitiQ50 HYBRID ↗2017
InfinitiQ60 ↗2018

Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.