The Lemon IndexAnother computer in the car received data from the power steering control module that did not make sense.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
A fault inside the power steering control module. Then: network wiring problem; needs a software update.
Owners named U0420 in 28 complaints to the U.S. government, most often on the Chevrolet Colorado.
Models that report it most
Complaints that name U0420, by model. Raw counts, not a failure rate: popular models get more complaints. Tap a model for its years, mileage and what owners say fixed it.
U0420 by model: U0420 Chevrolet Colorado (10)
Years owners report it on most: 2016 Chevrolet Colorado · 2015 Chevrolet Colorado · 2015 Chrysler 200 · 2014 Ford Fusion · 2020 Jeep Cherokee
The details
What U0420 means
Another computer in the car received data from the power steering control module that did not make sense.
Can I drive with U0420?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
32% of the owner complaints that name U0420 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of U0420
- A fault inside the power steering control module
- Network wiring problem
- Needs a software update
- Weak battery
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 32% of complaints
- Loses power or goes into limp mode: 29% of complaints
- Brakes or ABS act up: 25% of complaints
- Stalls or shuts off: 14% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report U0420 most
2016 Chevrolet Colorado (6), 2015 Chevrolet Colorado (4), 2015 Chrysler 200 (2), 2014 Ford Fusion (2), 2020 Jeep Cherokee (2).
Related codes
U0422 U0423 U0428 U0418 U0416 U0415 U0404 U0403
Quick answers
What does U0420 mean?
Invalid Data Received From Power Steering Control Module. Another computer in the car received data from the power steering control module that did not make sense.
Can I drive with U0420?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
What causes U0420?
A fault inside the power steering control module; Network wiring problem; Needs a software update; Weak battery.
Counts: NHTSA owner complaints whose text names U0420. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.