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Kevin
Kevin, Dodge Technician
Category: Dodge
Satisfied Customers: 697
Experience:  15 years working at a Chrysler dealer Master Tech Owner Of Kevins Mobile Repair Atlanta
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2002 Dodge Ram 1500: 4.7l..wont start..I jump circuits..starter relay

Customer Question

2002 Dodge Ram 1500 4.7l won't start. Everything has power. Will start when I jump circuits on the starter relay.
Submitted: 3 years ago.
Category: Dodge
Expert:  Kevin replied 3 years ago.

Kevin :

welcome to just answers my name is Kevin

Kevin :

well teh truck stay running after u jump it?

Customer:

Yes

Kevin :

do u have a test light or volt meter handy?

Customer:

I have a volt meter

Kevin :

ok I am sending u a wire diagram I want u to have some on start the truck with teh key and see if U get voltage on the pin 85 on the starter relay under the hood

Kevin :

is this something U can do?

Customer:

nothing on 85 12.3 on 86

Kevin :

when u turn the key u get no voltage on 85?

Kevin :

86 should be a ground not voltage but also depends on how u hook up the meter to

Customer:

standing in front of the truck is 85 the top or bottom

Kevin :

what does the relay look like square or rectangle

Customer:

square. the bottom is showing 12.3 the top 0

Kevin :

here is a pin out of the relay

Kevin :

u can flip over the relay and the numbers are on there as well

Customer:

my relay the 85 and 86 are flip floped

Kevin :

they are just relative to how u look at them

Kevin :

when u hold the relay facing down then look at teh relay and when facing down when the relay goes in that will be the pin u are looking for

Customer:

my relay has them marked. 86 is reading .40 and 85 is 0

Kevin :

ok just so we are going correctly U have the volt meter hooked up black on the - batter cable and the red pushed in pin 85 u might need a paper clip to make a good contact as well. When the ref prob is attached to the paper clip and some one turned the key to start it u get no voltage reading correct?

Customer:

sorry needed someone to turn the key all the way 86 is at 0 and 85 went up to .5 and back to .38 and stayed

Kevin :

ok so no 12 volts next go to the ign switch inside remove the cover and find the yellow wire and do the same thing when trying to start it U want to ahve 12 volts on that wire

Customer:

thats in the steering column?

Kevin :

yep

Kevin :

I will be back in like 20 min gonna run out to get some food BRB

Customer:

ok

Customer:

is it a yellow wire going into a harness on the left side of steering wheel?

Kevin :

ok back

Kevin :

yes the ignition switch will have several wires coming out of it

Expert:  Kevin replied 3 years ago.
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