Is the computer dead?

kickacar
0

Asked by kickacar Jun 04, 2014 at 10:56 PM about the 2003 Hyundai Santa Fe GL

Question type: Maintenance & Repair

I have a 03 Santa Fe 2.4L 5 speed manual.  The small timing belt broke and took out the crankshaft sensor.  I replaced both and drove about 100 miles when after turning off the engine I went to start it.  It would crank over ok and sounds like the engine has good compression but won’t start.   I put some gas in the intake to see if it was not getting gas.  It didn’t start.  I have no engine light.  I put the code reader on and it can’t link to computer with key on.  It takes a long time and then says error.  It could read the computer before with the engine not running and key on.  I think the computer died but have no way to test it.  Could be the wires.  Any other ideas?

5 Answers

tennisshoes
22,065

That system is fuse protected, check the fuses to see if it has blown some, if you do find a blown fuse then I would suspect there is a wiring problem in the engine control circuits, possibly something damaged when the belt broke. Wouldn't hurt to look it over real good first.

kickacar
0

Thanks Mark. I have checked all the fuses (under the dash and in the engine compartment) and found them all good.I would like to know the wire going to the computer that has the +12v. So I can check to see if the power is getting there. Is there sensors that need power from the computer that I can check? The crankshaft sensor has three wires, should one of them have a voltage?

tennisshoes
22,065

The sensor voltage will be 5 volts, the TPS uses voltage to sense the position, the crank sensor is just a Hall effect device so it won't have any referance voltage on it. You might be money ahead if you purchase a shop manual that has wiring diagrams in it for your car.

kickacar
0

My wife pickup a manual at Autozone and it doesn't help much. If I looked at the book before buying it I would have found a better one. Which shop manual shows the pcm wire diagram?

tennisshoes
22,065

I have found Mitchell manuals to be about the best, short of the original factory ones, unless you want to fork out some bucks and buy a subscription to an on line service.

Your Answer

Add photo

Related Questions

Santa Fe
Looking for a Used Santa Fe in your area?
CarGurus has 23,385 nationwide Santa Fe listings starting at $2,000.
ZIP:

Search Hyundai Santa Fe Questions

Hyundai Santa Fe Experts

#1 LouB
LouB
Reputation 940
#2 dandyoun
dandyoun
Reputation 400
#3 me29
me29
Reputation 320
View All

Related Models For Sale

Used Kia Sorento"
622 Great Deals out of 26,716 listings starting at $1,999
Used Honda CR-V"
781 Great Deals out of 47,230 listings starting at $1,795
Used Toyota RAV4"
795 Great Deals out of 38,352 listings starting at $1,925
Used Toyota Highlander"
560 Great Deals out of 14,671 listings starting at $4,000
Used Ford Escape"
1,617 Great Deals out of 56,579 listings starting at $1,400
Used Hyundai Sonata"
1,201 Great Deals out of 50,018 listings starting at $1,600
Used Nissan Murano"
504 Great Deals out of 16,179 listings starting at $2,999
Used Kia Sportage"
273 Great Deals out of 11,750 listings starting at $1,500
Used Jeep Grand Cherokee"
989 Great Deals out of 52,150 listings starting at $995

Used Cars For Sale

2014 Hyundai Santa Fe For Sale
64 Great Deals out of 14,937 listings starting at $18,500
2013 Hyundai Santa Fe For Sale
84 Great Deals out of 1,573 listings starting at $15,997
2012 Hyundai Santa Fe For Sale
51 Great Deals out of 958 listings starting at $12,475
2011 Hyundai Santa Fe For Sale
75 Great Deals out of 945 listings starting at $11,391
2010 Hyundai Santa Fe For Sale
35 Great Deals out of 636 listings starting at $9,885