U3003 on Honda
Manufacturer code: on Ford, Lincoln, Mazda and Honda, the module that stored it saw its battery supply voltage outside the allowed range, usually too low
Severity: Inspect soon
Ford stores U3003 in the ABS and power steering modules with brake warnings and heavy steering, and Honda in the brake booster, so get the battery and charging system checked soon.
It gets more serious if:
- Stop: Stop in a safe place if steering assist is lost, the brake pedal goes hard or sinks, or the car shows a Check Brake System or Do not drive message.
This page covers only what differs on Honda. For what U3003 means, the ranked causes and the test order, see the U3003 guide.
What's different on Honda
HondaYour car
2019 · CR-V
Supported by vehicle dataAn owner reports the dealer found U3003-16 in the brake booster with brake and parking brake warnings; the battery later failed too.
Sources and review
- NHTSA complaint 11766302: 2019 Honda CR-V brake warnings with U3003-16
- Ford SSM 52062: Check Brake System message with U3003:16 in the ABS module (2023 F-150)
- Ford SSM 49662: heavy steering with U3003:68 after auto start-stop (2018 F-150)
- Ford SSM 47792: lack of power steering assist with U3003 and U2011 (2019 Transit Connect)
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error