OBD-II code · Network
U0320 Software Incompatibility With Power Steering Control Module
A module reports a software version mismatch with the power steering control module — 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 U0320?
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
- Power Steering Module
Related codes
- U0318Software Incompatibility with Power Steering Control Module
- U031DSoftware Incompatibility With Parking Assist Control Module A
- U031ESoftware Incompatibility With Parking Assist Control Module B
- U031FSoftware Incompatibility With Accessory Protocol Interface Module
- U0321Software Incompatibility With Suspension Control Module A
- U0322Software Incompatibility with Body Control Module B
- U0323Software Incompatibility With Instrument Panel Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.