INFINITI

ITB26-006

2026-05-22 · NHTSA 11033018

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

Manufacturer summary

Original wording in English

ENGINE NO START WITH KEY SYSTEM ERROR AND DTC B2C20-24 STORED IN THE BCM IF YOU CONFIRM The customer states the engine will not start and “Key System Error” warning is displaying in the Information Display (Combination Meter) (Figure 1), AND DTC B2C20-24 for "STARTER CONTROL RELAY" is stored in the BCM. HINT: This DTC and warning message (Figure 1) may occur if the customer does not place the vehicle in Park Gear according to the Owner’s Manual for shifter operation. ACTION 1. Confirm the current ECM part number. 2. Confirm the current TCM part number. 3. Reprogram the ECM, and then the TCM, if applicable. 4. Erase the DTCs. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.