01 Can a Dirty Air Filter Cause a Check Engine Light? Yes, and… • 02 How to Read & Understand Live Data Streams from Your Car’s … • 03 Solenoid and Valve Body: How They Disrupt Shifting (And How… • 04 Why Your Car Interior Smells Different After Long Trips and… • 05 Accelerator Pedal Sensors: Everything You Need to Know • 06 Drivers Are Only Just Discovering Why Their Cars Randomly S… • 07 From Tires to Driveshafts: An Expert Explains Why Your Car … • 08 B0051: Deployment Commanded • 09 How a Delayed Oil Change Can Affect Your Engine Power • 10 What Happens If You Shift to Reverse While Driving at High … •

DTC codes / U03xx · Software and configuration mismatches / U0342

U0342Software Incompatibility With Hybrid/EV Battery Interface Control Module I

U0342 is a generic communication code indicating that a control module on the vehicle's network has detected a software incompatibility with the Hybrid/EV Battery Interface Control Module I. The computer has compared software version or configuration data between modules and found a mismatch that prevents proper coordination of hybrid battery functions.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaSoftware and configuration mismatches

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage