Skip the auto shop - Our mechanics make house calls

Q: Car won't start, check engine light is out but other lights are on, got new control and immobilizer but the problem remains.

asked by on

First it didn't start and there was a problem within the coding but the check engine was working, then the control was down and the check engine wouldn't pop when we first start the car and of course the car wouldn't start. We got a new control and immobilizer and coil, but the problem is still the same. We found out that the dynamo was burnt so we cut it off and checked the cables and it is clear. What can be the problem forbidding the control from running and the check engine from turning on?

Hi, thanks for writing in. It is possible that your check engine light bulb could be out. I would recommend having a qualified professional remove your instrument cluster to determine if the bulb for the check engine light has failed. If the bulb has failed, I would recommend having it replaced and see if your results change. If the bulb is not faulty, it is possible that something was installed incorrectly during the most recent repair. I would recommend retracing your steps to determine if any steps were skipped over or done improperly. This will help to determine the cause of why the check engine light will not work. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect your electrical system for you, and make or suggest any repairs as needed.

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
  1. Home
  2. Questions
  3. Car won't start, check engine light is out but other lights are on, got new control and immobilizer but the problem remains.

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: Crank but wont start - 1995 Chevrolet K2500

Hi there. Water will sink down in the fuel. Check the air filter to see if it is dirty. On a diesel engine, if the air filter is dirty then the engine will not start. Check to see if your...

Q: Recently had the IMRC rotary valve assembly replaced. One day later and I'm getting P1078.

Hi there. Some additional diagnostic tests will be necessary to identify the problem. The P1078 testing diagrams show that there are possible issues with a solenoid valve, a sensor, a vacuum leak, or an electrical issue. A certified mechanic will...

Q: Fuse keeps blowing

Fuses are a safety device that are supposed to be the weakest link in the electrical system. They are designed to pop open when the amperage exceeds its rating. I would suspect that the positive wire feeding the pump or...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.