B2477 on Mitsubishi
Module Configuration Failure
B2477 on Mitsubishi vehicles indicates module configuration failure. Au7o has documented this code across 1 Mitsubishi model — most commonly on Eclipse Cross. This body code means a control module's vehicle-specific configuration data (its 'as-built' programming tied to the VIN and installed options) is missing, incorrect, or corrupted. It most commonly appears after a module such as the body control, ABS, or instrument cluster is replaced and not properly programmed, or after a software/configuration glitch. It is a programming/data fault rather than a mechanical failure, and is usually cleared by reprogramming the module with the correct configuration using a capable scan tool.
Common Causes of B2477
- •Replacement module not programmed with vehicle-specific data
- •Corrupted or incomplete 'as-built'/VID configuration
- •Interrupted module reprogramming or software update
- •Low battery voltage during programming
- •Aftermarket accessory altering module configuration
- •Faulty module that won't retain configuration
B2477 on Mitsubishi by Model
Mitsubishi Eclipse Cross(1 issue)
- Forward Collision Mitigation Phantom Braking and FCM-ECU Software Defect2018-2021
Early Eclipse Cross models with Forward Collision Mitigation brake hard for objects that are not there. This is not just owner perception — NHTSA recall 18V620000 covers 2018-2019 Mitsubishi vehicles whose FCM-ECU software applies braking for longer than needed even after a pedestrian is no longer detected, with the stated consequence that drivers brake harder in response and increase rear-end collision risk. Companion recall 18V621000 covers a hydraulic unit ECU software defect that may prevent automatic emergency braking, ABS, electronic stability control and Brake Auto Hold from working properly. Owner complaints go beyond the recall scope: filings describe adaptive cruise control triggering FCM braking when cresting hills with nothing ahead, and repeated multi-warning-light events with hard braking recurring several times a year despite dealer repairs. The camera-and-radar fusion is sensitive to road crown, overhead signs and reflective surfaces, and the system's brake authority is high enough that a false trigger at highway speed is genuinely hazardous.
Looking for B2477 on a different make?
View B2477 across all makes →Frequently Asked Questions
What does B2477 mean on Mitsubishi?▼
B2477 stands for "Module Configuration Failure." This body code means a control module's vehicle-specific configuration data (its 'as-built' programming tied to the VIN and installed options) is missing, incorrect, or corrupted. It most commonly appears after a module such as the body control, ABS, or instrument cluster is replaced and not properly programmed, or after a software/configuration glitch. It is a programming/data fault rather than a mechanical failure, and is usually cleared by reprogramming the module with the correct configuration using a capable scan tool. On Mitsubishi specifically, this code is documented across 1 model.
What causes B2477 on Mitsubishi vehicles?▼
Common causes on Mitsubishi: Replacement module not programmed with vehicle-specific data, Corrupted or incomplete 'as-built'/VID configuration, Interrupted module reprogramming or software update, Low battery voltage during programming, Aftermarket accessory altering module configuration. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B2477 on a Mitsubishi?▼
Repair costs vary widely depending on the root cause and specific Mitsubishi model.
Which Mitsubishi models have B2477 documented?▼
Au7o has documented B2477 on 1 Mitsubishi model: Eclipse Cross.