Skip the auto shop - Our mechanics make house calls

Q: engine codes related

asked by on

Hey new to the group i have a 2003 z71 tahoe that is throwing up several codes all related to the 4x4 ground short to battery so on and so i have the codes there is a few the 4x4 works the light on switch works i have no issues with 4x4 at all but the codes for example are. B0092 B2725 B0790 U1255

C0379 C0374 C0359 C0327 C0321 C0306 C0305 C0300.

My car has 178000 miles.
My car has an automatic transmission.

A: Hey there. If the codes are cleared with a ...

Hey there. If the codes are cleared with a scanner, check to see if they return. Maybe the system was serviced or the battery ground is loose and causing the circuit to break which could cause a lack of communication between some components. If you would like having this checked, a qualified professional from YourMechanic can come to your car's location to throughly inspect the car to pinpoint underlying causes for the codes.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: have the tcs light on all the time and engine light

The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This system counteracts over steering and under steering by reducing power and/or applying brakes to specific wheels. This is done...

Q: Code says Lean bank 1 and 2

Hi there. It sounds like there could either be an air leak or sticking O2 sensors. I have personally seen O2 sensors that become stuck lean/rich and create a host of problems with the air/fuel mixture readings; I've also seen...

Q: Problem starting after fueling have to give it to start

Hello. All modern cars are equipped with an Evaporative Emission Control (EVAP) system. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.