Skip the auto shop - Our mechanics make house calls

Q: My car won't start. The odometer reads: NO BUS.

asked by on

It's turning over like it wants to crank almost like its not getting gas. Odometer reads no bus

My car has 70000 miles.
My car has an automatic transmission.

A: The error code "no bus" means the...

The error code "no bus" means the PCMS are not communicating with each other. Likely one of them has gone bad, or there is a bad connection. You can do further testing on them using a multimeter. This will require a diagram and detailed information on the specifications the units must meet. This would involve testing the input and output voltage values on the PCMs to determine which one is having issues. If you need assistance with this, have a certified technician, such as one from YourMechanic, come to your location and diagnose the starting issue firsthand. Best of luck.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: while driving the car shut off and havent been able to start it since the engine turns over but does not fire up

Unfortunately, we do not have enough information to diagnose your vehicle. It could be fuel related, ignition related, a computer failure, etc. A diagnostic scan may reveal the system that needs further testing. I suggest having a certified technician, like...

Q: Truck shakes at high speeds

Hi there: To answer your question simply; YES, even slight damage to your sway bar linkage can cause severe shaking above 55 mph. You also indicated that the tire has a little play when you jack it up which might...

Q: Hi I have a 1998 Nissan Sentra 1.6 Vail oh it's not starting it's trying to start but not turning over

Hello, thank you for writing in. If the starter, its relay, the battery, and the spark are all performing their functions while attempting to start, you issue is likely pertaining to a fuel or air issue. There are various sensors...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...