What usually causes it
- A damaged wire or a loose, rusty plug on the network line
- A blown fuse for the dash
- A weak battery or a bad ground
- A failed dash computer
U0155Starts at: Get it checked this week
Lost contact with the instrument panel (dash) computer
Other computers in the car cannot talk to the dash computer, which runs the gauges and warning lights. You may miss a warning light or see a wrong gauge reading.
Check this first
Check that the battery cables are tight and clean, and look at the dash fuse in the fuse box.
What to watch for
- Gauges or warning lights that are dead, stuck or wrong
- The speedometer or fuel gauge not working
- Other warning lights coming on
Can I keep driving?
We rate U0155 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about U0155
What does U0155 mean?
Lost contact with the instrument panel (dash) computer. Other computers in the car cannot talk to the dash computer, which runs the gauges and warning lights. You may miss a warning light or see a wrong gauge reading.
Can I keep driving with U0155?
We rate U0155 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes U0155?
The most common causes, in order: A damaged wire or a loose, rusty plug on the network line; A blown fuse for the dash; A weak battery or a bad ground; A failed dash computer.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.