U0104 on Honda
Lost Communication With Cruise Control Module
U0104 on Honda vehicles indicates lost communication with cruise control module. Au7o has documented this code across 1 Honda model — most commonly on CR-V. Sets when a module loses data-bus communication with the Cruise Control Module and stops receiving its expected messages. On many modern vehicles this also affects adaptive cruise/driver-assist features. Typical repair costs on Honda range from $600 to $1,200, depending on the specific model and root cause.
Common Causes of U0104
- •Open or shorted bus wiring to the cruise control module
- •Corroded or loose connector at the module
- •Blown fuse / lost power or ground
- •Low battery voltage
- •Failed cruise control module
U0104 on Honda by Model
Honda CR-V(1 issue)
- Front Radar Sensor Behind the Grille Emblem Is Stolen in Seconds, Disabling Honda Sensing2024-2026
The millimeter-wave radar module for adaptive cruise control and the Collision Mitigation Braking System sits directly behind the Honda 'H' emblem in the CR-V's front grille, retained only by clips. Thieves pop the emblem and pull the sensor in under a minute; the modules resell for a few hundred dollars while dealer replacement plus aiming runs many times that. Multiple 2026 CR-V owners filed NHTSA complaints after repeat thefts — one owner had the sensor stolen, replaced, and stolen again. Dealers have reported mass overnight hits on their own lots. The car still drives, but ACC, CMBS, low-speed braking control and the road-departure functions go dark and the dashboard fills with driver-assist failure messages, and replacement modules have been on backorder.
Looking for U0104 on a different make?
View U0104 across all makes →Frequently Asked Questions
What does U0104 mean on Honda?▼
U0104 stands for "Lost Communication With Cruise Control Module." Sets when a module loses data-bus communication with the Cruise Control Module and stops receiving its expected messages. On many modern vehicles this also affects adaptive cruise/driver-assist features. On Honda specifically, this code is documented across 1 model.
What causes U0104 on Honda vehicles?▼
Common causes on Honda: Open or shorted bus wiring to the cruise control module, Corroded or loose connector at the module, Blown fuse / lost power or ground, Low battery voltage, Failed cruise control module. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0104 on a Honda?▼
Repair costs on Honda range from $600 to $1,200, depending on the specific model and root cause.
Which Honda models have U0104 documented?▼
Au7o has documented U0104 on 1 Honda model: CR-V.