2003 GMC Yukon XL - Answered Questions & Fixed issues
2 Answers
2003 GMC Yukon will not start.The battery is
2003 gmc
If you're finding it difficult to service/repair your car, get one of those online manuals.
You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that sells very cheap but very very good manuals online, without expiry i.e. for lifetime.
2003 GMC Yukon...
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Answered
on Feb 01, 2018
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67 views
1 Answer
2003 gmc yukon xl won't turn over- new battery
It sounds like you have a bad connection on the battery. Make sure to clean the connections, make sure they are tight, and make sure the ground cable has a good connection at both ends, battery side and body/frame side. The bad connection is the only answer when the battery is fully charged and you turn the key and it all goes out. If you can turn on your headlights and press the brake at the same time, and they work, then it may be something else, but I would be amazed if they do work given your description of your problem.
So, make sure the battery is charged and clean and tighten all your connections. Test battery connection by putting it under a load with all the lights, head, and brake at the same time. If it goes off then, redo cables again.
Good luck.
2003 GMC Yukon...
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Answered
on Jan 08, 2018
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150 views
1 Answer
My climate control unit in the dash doesn't turn
2 wheel drive or 4 X 4 ? Automatic or manual climate control
Do you know what DTC'S - diagnostic trouble code's are ?
DTC B1375
The ignition 3 voltage circuit is a discrete input to the HVAC control module. The HVAC control modules uses the input to determine that the ignition switch is in the RUN position. When the ignition switch is in the RUN position, ignition voltage is applied to the input.
Rather then guessing as to what the problem , not being able to diagnose properly , your best bet mite be to have a qualified repair shop check it out . Would need to hook up a professional or factory scan tool to check code's ,see if the climate control module will communicate with the tool .
HVAC Control Module
The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive voltage circuit provides power that the control module uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, all HVAC DTCs and settings will be erased from KAM. The body control module (BCM), which is the vehicle mode master, provides a device on signal.
2003 GMC Yukon...
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Answered
on Jan 03, 2018
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131 views
1 Answer
Rear access door ajar
What's your question ? Tailgate ajar light lit on the instrument cluster ?
The Body Control Module (BCM) monitors the lift glass and the cargo door ajar switches. When the switch closes, the path to ground is completed, and the BCM sends a class 2 message to the instrument cluster to display the CARGO DOOR AJAR message.There are two ajar switches for the rear door ,a left an a right ,the third switch is for the lift glass ajar switch . All three of these switches splice pack SP410 At ground point G410
(Shouldn't have any readings when door(s) and/or window closed.) It's the opposite . switches are open with door closed , G410
In the Body Harness, Behind the RR quarter trim panel near the D-Pillar
It turns out it has nothing to do with rear door. Something about drivers door actuator. NO IT DOESN"T !!!!
2003 GMC Yukon...
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Answered
on Nov 09, 2017
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411 views
1 Answer
I have an 03 yukon
Probably all related , all these systems are interrelated .One won't work without the other. Could have a problem with the TAC system - electronic throttle control . Your best bet , take it an have the computers checked for DTC'S - diagnostic trouble codes . Do you know anything about automotive electronic's ,serial data communication networks ?
2003 GMC Yukon...
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Answered
on Sep 16, 2017
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160 views
1 Answer
Vauxhall Zafira Diesel.
there will be fault codes if you use the correct scanner that has the right protocols for the car system
the problem will be faulty injectors ( squirting and not atomizing) or the fuel pressure is too low to crack the injectors
take it to an accredited specialist diesel shop for a proper diagnosis and quote
continue to use easy start and you will have more than a no start problem as that has the capability of blowing a rod through the sump
2003 GMC Yukon...
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Answered
on Jul 26, 2017
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570 views
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