power to gauges and light

I have a 2007jeep wrangler x 4 x 4 3.8 litres. Presently I start the jeep the heater fan works if i put on the 4 ways it works but no clicking. the gauges dont work the inside lights dont work the wipers front and back dont work, the flashers dont work, the head lights will com on as day light but the head light low or hight wont work. what should i look for. all fuses seem to be ok.  

first.... newer jeeps and all other cars are really complicated...   so lets start with something simple..
and please print this chart... follow it... i have been fixing cars for 30+ years and this has cured a LOT of problems quickly...

this test is the first test and the car has to pass the 4 part second half or you cannot continue diagnosis until..   why.. it would be like wondering why the weed wacker at the end of the extension cord is not working when you have plugged the cord into the back of the weed wacker.. but the power wires have fallen off your roof from the pole..  this is the power pole to the roof and into the box on the wall test..   i hope i got this across..


print the chart below.. its an image...  please post results by number..

1.___________

2.___________

3.___________

4.___________


__________________________________

 

here are the GROUND locations on a 05TJ
if one or more of these are dirty.. corroded.. left off... loose... broken.. ripped out by something.. you will have issues that drive you crazy and make your system act crazy like you describe... when the flashers only work when the heater is on.. gives me the idea that you have a bad ground..    since electrons travel from negative to positive.. and on cars.. the ground side is HALF the circuit..  if you have a bad ground someplace... you may not have enough electrons to properly operate the various devices...

print this list also.. take each one apart.. with a volt meter.. you can touch the ring terminal and the part its grounded to... and see if there is any voltage measured across those parts.. if you find any.. between the ground ring terminal and the part its attached to .. while that circuit has everything turned on.. even if it does not work right now..  or just take each one apart and use a stainless steel wire tooth brush..

G100 Rear Center of Engine Compartment
G101 Rear Center of Engine Compartment
G102 Left Radiator Closure Panel
G103 Right Radiator Closure Panel
G104 Near Generator
G105 Right Rear of Engine Block (4.0L) Near Left Engine Mount (2.4L)
G106 Rear of Engine Compartment
G107 Left Front of Engine Block
G108 Right Rear Engine Block
G110 (2.4L) Near Left Engine Mount
G111 Near Right Rear of Engine
G190 Near Right Headlamp
G191 Near Right Headlamp
G200 (LHD) Left Rear of Instrument Panel
G200 (RHD) Right Rear of Instrument Panel
G201 (LHD) Left Rear of Instrument Panel
G201 (RHD) Right Rear of Instrument Panel
G202 (LHD) Right Rear of Instrument Panel
G202 (RHD) Left Rear of Instrument Panel
G203 (LHD) Right Rear of Instrument Panel
G203 (RHD) Left Rear of Instrument Panel
G204 Center of Instrument Panel
G300 (LHD) Left Kick Panel
G300 (RHD) Right Kick Panel
G301 (LHD) At Base of Center Stack
G301 (RHD) Left Kick Panel
G302 (LHD) Left Kick Panel
G302 (RHD) Right Kick Panel
G303 (LHD) Near Steering Column Mounting Bracket  

Hello waynep71222. I really appreciate the help you seem to know your stuff, as I am mechanically inclined, the explanation about the weedwacker was pretty explysit, lol. Ok so I did the tests.the charging system is working good as I have a 240amp alternator. all grounds have been checked as I am getting .ooov arround engine compartment and battery is good. I cannot put my headlights on since they dont work but only daylight will come on as I put the ignition switch on. The drop voltage is normal on the battery itself and the alternator charges at about 14.15 to 14.2. I Also did a ground check arround the inside body parts as the dash brackets and other ground points near feet were all grounds meet up and I get .004v. I have a sound system on that jeep and I added ground points so that should not be a problem. I also checked arround abs and computer under hood and it valued 0.00v. As I sais erlier I have no power to inside lights, no horn, nogauges,spedo etc.,no flashers and no head light nor fog light. I have checked visually and with a meter all fuses. There is a hight pitch sound comming from two relays but i bypassed those 2 and nothing changed. those two relays are RUN/ACCY RLY and r button to add desired formatting to text
 

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Sponsored Linksun rly. I dont think it should apply for the problem occuring but I shure dont know. I there other relays that I could check??? Thank yves. who ya and no wipers.  

wait...

you have a 240 AMP alternator on this....

do you have something around a 2 gauge super flex wire running from the alternator output terminal to the battery cable???

do you have a similar 2 gauge super flex wire running from the alternator housing to the battery negative.. but also to the body...

do you have some serious braided strap between the engine and the body???

what kinds of accessories are you running to need that much current...

do you have the 07 TJ factory service manual  in the 05 TJ the wiring diagram section.. not the whole section 8.. just the diagrams is 310 pages long..

buzzing things are going to give you issues... just bypassing relays is not going to solve things..

when i looked around the CD service manuals from jeep

Product Id: 81-370-07063CD
Name: 2007 Jeep Wrangler Service Information CD (English)
USD $206.00 per unit



Product Id: 81-370-07363
Name: 2007 Jeep Wrangler Wiring Diagrams Manual (English
USD $88.00 per unit  

Hey! Yes the alternator is bigger to feed a 5000 watt sound system but I have been runing it for over 3 years. I have a battery isolator since I have 2 other batteries in the back. I have ground wires from the battery to the body, from alternator to the body, from the engine to the body there 0 gauge. The battery isolator seem to be fine no current from is or bustem diodes. I have unpluged it to verify things. As for the manual I am pretty low on cash so that wont help for now. Is it possible that there is a whole arness going to the computer and the computer would be gone cause  in that case is there a computer just for that arness cause the vehicle starts good and runs good and it charges. If I had a computer analyser could I find the problem? As for the relays they dont give me more info on if one of them has to do with the gauges. Thanks  

i hope you have a working printer... you are going to want to print some of these.. if not all of them....  this is the HVAC system wiring diagrams for the 07 models.

http://www.autozone.com:80/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f8075adc2

here are the turn signal wiring diagrams..

http://www.autozone.com:80/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f8075ae04  

Well I thank you very much for the help. But I was playing arround with the daxh gauge cluster and dropped in place and the sanavagun everything went back working! So I suspect that the gauge cluster is deffective or the pins have come unsodered like I have seen before or the pin connectors are comming loose, but think its the cluster. Again thank you very much for the help, now I have to put everything back together, LOL! Yves