U0316
Software Incompatibility with Park Brake Control Module
A control module has detected that its software version does not match the parking brake module. Most often after replacing the EPB unit with one from a different model year or coding variant.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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
Common causes
Ordered by how often each turns out to be the cause.
- EPB software/calibration mismatchCommon
- Used EPB module fitted from different vehiclePossible
- Gateway module routing CAN messages incorrectlyLess likely
Parts involved
- Park Brake Module
- Control Module
U0316 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.