Q: "No bus" code

asked by on May 20, 2016

My truck wouldn't start and the fuel pump wouldn't do anything so I changed it , went to start it. It cracked but would not start and the dash went dead and the mileage started flashing "no bus" I did not notice this before but I already had assumed it was the fuel pump. I checked some connections but don't really know where to start or what to look for. Can you walk me through diagnosing and finding the issue? Thanks

My car has 140000 miles.
My car has an automatic transmission.

When the No Bus message appears in your instrument cluster, its usually an indication that there is a problem with the powertrain control module or the wiring to it. This is also very likely the cause of your no start concern. You will need to have the PCM tested as part of diagnosing the no start condition by a qualified technician, such as one from YourMechanic. If you want to try diagnosing the issue yourself, you could first try swapping the PCM with a known good unit with an identical part number from another vehicle and see if that helps.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

P0014 code. The engine run erratic and have a hard starting problem..when i took it to mechanic he said to get a part reqired for

The camshaft position sensor is a magnetic sensor that monitors camshaft speed to regulate ignition timing and fuel injection timing. It gathers and sends information about the car’s camshaft speed to the car’s electronic control module. This information is used...

Suspension damage 2015 Dodge Dart

Hi there - possibly. While it is possible that the wheel bearing was not damaged, or damaged enough to cause a concern for replacement. However, most modern front-wheel drive vehicles utilize double-row ball bearing hub designs, and these bearings are...

Camshaft Position Sensor

Hello, thanks for writing in about your Dodge Challenger. From what you've described it sounds like you may have a different sensor than what the auto parts store has listed. If you go to the dealer you would be able...

Related articles

The Most and Least Expensive Cars to Insure
Car insurance quotes depend on the car make and model. The Honda Odyssey is the least expensive and the Dodge Viper is the most expensive to insure.
A Buyer’s Guide to the 2011 Dodge Dakota
2011 2011 marked the final year of production for Dodge’s venerable Dakota pickup truck. It was a compact pickup, not quite the size of the Ram, and competed with similar models like the Chevy S10 and the Ford Ranger (both...
The Best Used Cars to Buy If You Live in a City
Living Living and driving in the city means you’re faced with parking constraints, narrow streets, and the constant stop and go of traffic. With all of that said when you’re ready to purchase a used vehicle these are all things...