OBD-II code · Network
U0312 Software Incompatibility With Battery Energy Control Module A
A module reports a software version mismatch with battery energy control module A — typically after replacing one of the modules without programming the new unit to match the rest of the network.
Is it safe to drive with U0312?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule replaced without programming
- PossibleWrong part number for the vehicle
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Energy Module A
Related codes
- U0313Software Incompatibility With Battery Energy Control Module B
- U034CSoftware Incompatibility With Battery Energy Control Module C
- U030FSoftware Incompatibility With Reductant Control Module
- U0310Software Incompatibility With Fuel Pump Control Module
- U0311Software Incompatibility With Drive Motor Control Module
- U0314Software Incompatibility With Four-Wheel Drive Clutch Control Module
- U0315Software Incompatibility with ABS Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.