Changed headlight bulbs and now car wont start

Shandi91
160

Asked by Apr 11, 2013 at 09:03 AM about the 2003 Mazda MPV LX

Question type: Maintenance & Repair

He was able to replace the bulbs fairly quickly, I paid and attempted to leave. The car wouldnt start!! It cranks and cranks but wont start. Mechanic says its not getting fire to the engine. He seems to think its the security. Is there anything that can be disturbed while changing a simple bulb? Has anyone ever had this happen to them. We have taken off the cables in hopes to reset it but that didnt work either. Help!!

69 Answers

tenspeed
85,975

There should not be anything that can be disturbed when changing a bulb. The guy is a mechanic so he should know if the battery is good. The no fire condition can be scanned to see what failed.

3 out of 3 people think this is helpful.
James Ramond
17,725

if security you can try manually lock doors ,unlock doors a few times.maby will reset

Shandi91
160

Battery if only few months old. The terminals are fine, had a conditioner on them. Is the factory keyless entry and system that can disable the ignition? It just seen to churn & churn

1 out of 1 people think this is helpful.
Shandi91
160

How do you check a fire scan tenspeed

2 out of 2 people think this is helpful.
tenspeed
85,975

Put a scanner on the OBDII port under the steering wheel. That will read the codes in the computer. If anything is wrong, a trouble code will be displayed. -- You need power to the coils to fires the plugs. You also need a crank position sensor to tell it when to fire. It could be a security issue. I don't know if the Mazda has a security system that shuts the ignition down.

Shandi91
160

The codes on the computer say n/a. I always thought the key fob was just a lock and unlock system. I didn't know it was a security system. The mechanic is puzzled. Especially since this is first time it had never started for me. I would understand a crank sensor but it should show that code. Any ideas on the N/a code result

1 out of 1 people think this is helpful.
Shandi91
160

Would the fuel sensor in the fuel tank do this? I know that is going bad to. My gas hand fluctuates some times, not all the time

1 out of 1 people think this is helpful.
James Ramond
17,725

no fuel problem, check fusible link in box under hood 1 inch tall 1/2 x 1/2 plastic plug in, im guessing the 30 amp ,usually white plastic square amongst others

Shandi91
160

Would this not show up in the codes on the computer???

1 out of 1 people think this is helpful.
Shandi91
160

I do see one of these on the outside of the fuse box. And its very near to the headlight plug location

2 out of 2 people think this is helpful.

your instructions in the owner's manual doesn't cover something like this, 2003---not enough time for the owner's manual to get lost, probably is in the glove box, battery is good, not sure what jim is getting at with his fuse, but that mechanic says it's a security thing, but did not offer a solution, tsk...tsk will start researching this now---

1 out of 1 people think this is helpful.

if you could find your way to an OBD trouble scanner, we'd know, you're absolutely right, there's something that just ain't right...these things are touchy and could have been something the hapless greasemonkey unplugged unwittingly, but would appear in your trouble codes such as P1004 which we could look up to get a clue~

1 out of 1 people think this is helpful.
Shandi91
160

Ive never had an issue with the factory keyless entry. This was instantaneous. No issues led up to this. no missing, no not starts, no noises. i just had a blown low beam headlight on the drivers side.

1 out of 1 people think this is helpful.

Still looking for more data on the LX model....give me some more time...

n/a means not connected-

Shandi91
160

what does a N/A code mean? no issues or no read out?

1 out of 1 people think this is helpful.

....verrrry suspicious!

not connected. not applicable-

gotta say something. n/a = not applicable, which- of course it's applicable, what else? some people's kids, I tell ya-

will stick with you until we come up with an answer-

going to pull on DavidH25's ear to see if he can help us, he's a good man, and happens to be No1 guru-

Shandi91
160

Thanks. If he unknowingly unplugged or loosened this fusible link, would that make the screwy codes and no start?

2 out of 2 people think this is helpful.

yes yes yes, but everything would go dead.

don't think that it's a handy little white box like 7jimmy7 said, I've always known them to be a link (or length of wire), that's old school (93-96) when I was a mechanic. every day is a new chance to find out what I did not know.

Shandi91
160

i have power to inside radio and such when turned to the ACC switch. even when i crank it over the O/D off light blicks, which is weird. Trying to give ya every bit of info i can

1 out of 1 people think this is helpful.

thinking....thinking just need more time to research this-

Shandi91
160

There is a longer fuse box with a small box beside it, both black. There are a few wires coming out with a white fuse connector with a 30 fuse in it. its wires run down in the same direction that the mechanic had to reach to change the bulb

aha--

Shandi91
160

is the thing with the 30 fuse in it the fusible link

H25 knows now, he put a couple o stuffs in my hands tooo, we both have our hands full, but because you're just sittin' there tryin' to hack it out...stranded, you get top priority in my book- still researching this security problem but haven't found much on the LX model in the forums I've researched~

I am researching this before I post...take just a few minutes..I have an idea but want to make sure..BRB

What I can say, without reading all 32 answers, one of the guys might have already said this but.. yes... it's way too much coincidence that suddenly it won't start after a mechanic changes headlights.

DavidH25 to the rescue!!

Shandi91
160

So whats the cause DavidH25. Fusible link or crank sensor?

1 out of 1 people think this is helpful.

How's the crank sensor suddenly going to happen? This one would put you out of business immediately. it'd crank with no ignition going on~

If it is the 'security' he should know how and re set it for you~~ free. But: The powertrain control module (PCM), or engine control unit (ECU), is a circuit board computer that stores information. The PCM will trigger the indicator light to illuminate to inform you there may be an issue with your car. Disconnect the "Negative" terminal clamp to your battery. . Sit in the driver's seat. Push down and release the brake pedal five times consecutively. Reconnect the "Negative" terminal clamp on your battery. If that is not it, I'm not finished either way

1 out of 1 people think this is helpful.
Shandi91
160

I will try. Thanks

If it's not the passkey .... I am going with fusable link. Shandi what you wrote about an hour ago, you are on to something..it's right where he was working. Hold on...

This is how to change headlights in your car: when he did, if he touched some wires together while hot, there goes that fuse. If he didn't use the right procedure to change them... Park the car on a flat surface, turn off the engine and apply the parking brake. Pop the hood and look behind the burned out headlight. Remove the plastic covering to gain access to the interior of the headlight assembly. Unplug the cord coming out of the headlight assembly that connects the headlight to the Mazda's electrical system. Remove the old bulb. Simply press the tab on the wire clip holding it in place and pull the bulb out. Insert the replacement H1 bulb. There will be a flat edge to the base of the bulb; make sure that is facing upward when inserted into the socket. Secure it with the wire clip. Plug the connector back in and replace the plastic cover

Shandi I hope I was of some help..what I want to hear is Horray it worked! I keep going back to the same thought..the mechanic screwed it up and should fix it, Just too much coincidence as I said before. I stated from scratch, I did not read tenspeeds answers, didn't take the time... I am going to do that now.

Yep, N/A is the scanner is not getting a signal, or it might as well say 'i don't know" on the scanner screen,,,and tenspeed's first post, 40 posts back is the heart of the whole thing.

Notice how he spells out what the PCM and ECU are...you gotta know what these things are if you're gonna carry any weight around here- once again thanks David, you're a godsend.

Thanks for the ego builder Judge, really. Only problem is I don't think I was much help other than explaining them. I do paste things sometimes and flat plagiarize other people's words but not that one..and acronyms have a place but if you don't know what a particular one is it's no good to the person seeking help

Shandi91
160

I will get the mechanic to check this fuse case on the outside of the box. I will also do the brake test as DaidH25 suggested. The mechanic was fed up last night and told me to take it to a dealership. Thanks for the spelled out directions. I will attempt to change them again myself, next time!!! I will keep you posted. Keep thinking though guys, we may be close

We are close indeed. and WILL get to the bottom of this. I have a visual Shandi, the guy raising his hands in the air...says #$^%$# it take it to the dealer..

Shandi91
160

That is about right David

Shandi91
160

so the fuse by the box if pulled loose or blown would give the computer a N?A code?

This is off topic, just a story that this thread reminded me of. A woman (17 years old) asked her boyfriend to fix her headlights and he said he needed $50 to get the headlight fluid. He said Halogen fluid is more expensive than 'regular' headlight fluid. When she told her Dad this he forbade her to ever see the guy again. And made him give the 50 bucks back. But she didn't know.. true story

Shandi91
160

I wouldnt have even fallen for that one!!!!!

you're thinking if it's a fuse, you might just be able to replace it and off you'd go then...what amperage? 30?

again with the n/a? it's not applicable~

Shandi91
160

I understand that its a not applicable! But what Im asking is would this fuse cause that readout?

akin to yellin' at a deaf guy.

it's not reading? something isn't gettin' connected in tinker-town, If I was doin' it would be certain that the unit is plugged in, just can't be, this n/a business, means wasn't plugged in~

There are two scenarios possible, One is that the OBD will store the codes and if the faults were stored before the fuse went, they will still be there and read on the scanner. But if the fuse went first the OBD never got the codes. So the answer is maybe..sorry 'bout that..it does not answer you I realize..

still stuck in the parking lot of the Hy-Vee?

Shandi91
160

Im taking it to another mechanic that's local on Monday. See if her will lol at it. The other is done with it.

Yay, you could print out this entire score, so he would not step into the same dog piles~

Raleigh Ahlstrom
185

have you tried disconnecting the battery

Shandi91
160

Several times Raleigh

Shandi91
160

Can you guys tell me how to reset the anti theft????

1 out of 1 people think this is helpful.

I would reset my ECM, do this by turning key to on position with a/c on then remove positive battery cable, wait 30 sec. the turn off key and replace battery cable. Good luck with it.<<<

here's another: Turn ignition to the ac position, open all doors, turn key to the off position, remove keys, close all doors and close using key not remote. this resets system

Shandi91
160

Air condoning on Judge Roy, referring to the first option

1 out of 1 people think this is helpful.

yay...kinda almost worked...sorta?

Shandi91
160

Who had bets on the blown fuel pump relay?????

good one. no one did~

slowburn369
20

check for a 10amp fuse labeled u/h relay. that same thing happened to me. if you must attempt getting around a Passlock Security issue. check out this out http://www.passlockfixit.com/

2 out of 2 people think this is helpful.
samevo8
0

Was this problem every resolved? I just changed the injector coils and spark plugs for my 2003 Mazda MPV LX, and I'm now experiencing similar symptoms: Cranking but engine doesn't start. O/D light blinks. Belts rotate slowly. Thought it might be a vacuum leak but I've checked all the connections and hoses. Tried jumping the car too.

Your Answer

Add photo

Related Questions

  • How do I change a headlight bulb? 16 answers

    2001 Mazda MPV

    -

    Maintenance & Repair

  • why Mazda MPV minivan 2006 having strange noise 2 answers

    We bought the car 1 week ago and i have to bring it back to the service center where bought it because right wheel pulling and strange noise from the engine. that happen 3 days after we bought the c...

    2006 Mazda MPV

    -

    Maintenance & Repair

  • Why is there a milky brown oil layer in the coollant reservoir of my Mazda MPV? 18 answers

    When my husband checked the coolant there was a milky brown layer of oil floating on top. The car was running fine.He took it to mechanic and there was a small pipe leaking he fixed that but is puzz...

    2003 Mazda MPV

    -

    Maintenance & Repair

  • Lost Power while accelerating onto highway 31 answers

    MPV lost power and nearly quit while entering highway. I had drove some 5 miles before problem occured. No engine light present. Used CODE scanner, no codes retreived (pass). Possible Fuel filter or p...

    2001 Mazda MPV ES

    -

    Maintenance & Repair

  • I have a Mazda Mpv 2000, 5 answers

    I had my mazda fixed with front and back brakes, alternator changed, new battery, belt changed, four new tires, and when i start the car it sounds like a horn noise, when I trun the wheel, it makes...

    2000 Mazda MPV

    -

    General

MPV

Looking for a Used MPV in your area?

CarGurus has 472 nationwide MPV listings starting at $1,595.

ZIP:

Search Mazda MPV Questions

Mazda MPV Experts

#1 bobbyleveille
bobbyleveille
Reputation 850
#2 Gary John
Gary John
Reputation 480
#3 Michelle Ann
Michelle Ann
Reputation 260
View All

Related Models For Sale

Used Toyota Sienna"
285 Great Deals out of 20,868 listings starting at $1,450
Used Honda Odyssey"
387 Great Deals out of 24,019 listings starting at $1,995
Used Chrysler Town & Country"
495 Great Deals out of 21,266 listings starting at $1,299
Used Kia Sedona"
114 Great Deals out of 10,191 listings starting at $2,499
Used Nissan Quest"
73 Great Deals out of 3,445 listings starting at $1,695
Used Dodge Grand Caravan"
279 Great Deals out of 26,578 listings starting at $1,500
Used Dodge Caravan"
1,135 listings starting at $3,990
Used Toyota Corolla"
1,158 Great Deals out of 67,191 listings starting at $1,295
Used Honda Pilot"
450 Great Deals out of 16,334 listings starting at $2,300
Used Mazda Tribute"
31 Great Deals out of 1,202 listings starting at $500
Used Honda Civic"
883 Great Deals out of 53,687 listings starting at $995
Used Hyundai Santa Fe"
512 Great Deals out of 33,459 listings starting at $1,700
Used Honda Accord"
1,070 Great Deals out of 74,013 listings starting at $1,400
Used Mazda MAZDA6"
232 Great Deals out of 14,404 listings starting at $1,495

Used Cars For Sale

2006 Mazda MPV LX For Sale
27 listings starting at $2,800
2005 Mazda MPV LX For Sale
5 Great Deals out of 52 listings starting at $1,595