Skip the auto shop - Our mechanics make house calls

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.

A: Hi there. I think you are on the right trac...

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 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・Fair and transparent pricing

Get a quote

What others are asking

Q: If I replace my engine does it have to be the same year?

If you are looking to do an engine swap you should use the same year motor. This way you will not have different sensors and harnesses. Also you may have different exhaust, intakes, and accessories. From one year to another...

Q: Car not starting, though dash lights work

I would start by checking the battery pack's service plug to make sure it's installed correctly. If the service plug isn't restored to it's original position, it can cause all of the warning lights to come on and prevent the...

Q: I just started noticing a rubbing noise anytime I make a right turn. Even the slightest bit turn to the right it makes that sound.

Hi there. In most cases, this type of noise is a common sign of a bad or worn wheel bearing. When wheel bearings wear out or become damaged due to dirt or debris or lack of proper amount of grease,...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...