Code Definition

C0226 — Lost Communication with ECM

System: Chassis  |  Type: Generic (OBD-II Standard)  |  Make: Infiniti

About C0226

C0226 is a generic (obd-ii standard) chassis diagnostic trouble code recorded for Infiniti vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

Because C0226 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The ABS control module communicates with the Engine Control Module (ECM) via the CAN communication network to receive engine related data required for traction control and stability control functions. DTC C0226 is set when the ABS control module detects a loss of communication with the ECM for a specified period while the ignition is ON, meaning the expected CAN messages from the ECM are missing, invalid, or not updated within the calibrated timeout threshold. When this code is active the ABS module disables traction control and stability control and illuminates the ABS and stability warning l...

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