Q: No crank no start no shift. AC blower and cruise control not working. All dash lights on. Can jump 12v to crank fuse and start

asked by on

i have a 2004 chevrolet suburban no power at crank fuse although i can jump 12v to crank fuse and it starts and runs and drives but there is no transmission shift so have to shift manually. no ac blower no cruise control. i have had it in the shop twice to the tune of over 2k dollars still not fixed. purchased a new bcm as i thought it may be the issue and took it to chevrolet to have it programmed and they said they couldnt get into it to program it. tonight i checked the internal fuse panel out of curiosity and the ac fuse has no power the cruise control has no power , i jumped 12v to the ac fuse and the blower came on the dash lights all went out . going to diagnose more today im suspecting a wiring issue in the fuse panel?

My car has 200000 miles.
My car has an automatic transmission.

Hi there. I think you are on the right track. If you have good fuses both under the hood, and at the internal fuse panel, but don’t have 12 volt "supply" voltage to the fuses, there is quite likely a power supply connection in the fuse block that is causing the problems. The individual components you describe (including the transmission controller) are all fused, so the fuse block becomes the starting point. If you would like assistance confirming this diagnosis, I would recommend having a certified technician from YourMechanic inspect the electrical circuits so that the correct repair can be made.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. No crank no start no shift. AC blower and cruise control not working. All dash lights on. Can jump 12v to crank fuse and start

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: 1. Car jerk 2. Battery

The jerking reaction may be related to what is known as the mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to...

Q: The fuel pump and dashboard lights indicator shut off after the 4 wires in the neutral safety switch shorted out

It sounds like you may some blown fuses from that shorted switch. Inspect the fuses and replace as necessary. An electrical wiring diagram and a digital volt/ohm meter will be needed for further diagnosis if replacing the fuses does not...

Q: My 2008 suburban tends to idol up when applying my break. What would cause it to do that?!?

Hi Mandy. Thanks for submitting your question tonight. An unusually high idle is typically caused by one of four things. First and most common is a problem with the idle control valve - which is a part of the fuel...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...