U0131Lost Communication With Power Steering Control Module A
- Generic OBD-II code · Network
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- U0131 means a listener on the bus has missed the cyclic frames of power steering control module A, normally the electric steering unit on rack or column. GM documents several receivers: the ECM of 2019 models flags it after 10 s without message $1E5 as a Type C, emissions-neutral fault and then stops basing auto-stop decisions on steering angle; the EBCM reacts after 0.025 s, and the 2025 EOCM3 after 0.05–0.25 s, switching off adaptive cruise (Special Type C, no MIL). FCA, by contrast, reports a lit check-engine lamp on Jeep models. Bulletins blame a blown 80 A mega fuse (Ford Transit Connect), PSCM software (Ford Super Duty 2020) and a chafed transmission harness (Jeep Cherokee diesel). Steering assist may drop.
- What you may notice
- Reduced or no steering assist, heavy steering
- EPS or steering fault message in the cluster
- Adaptive cruise control switched off (GM)
- Check-engine lamp on some vehicles (e.g. Jeep)
- Likely causes
- LikelyHigh-current fuse, supply or ground of the steering module open (e.g. Ford mega fuse F2)
- PossibleChafed or damaged harness on the bus or wake-up line (e.g. Jeep Cherokee, GM circuit 5986)
- PossibleSteering module software, fixed by an update (Ford Super Duty 2020)
- RarePower steering control module internally failed
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.