Still no back up light??
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Elder User
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Still no back up light??
Well I starting tracing the wires back starting at the back up lights. I've traced it all the way up to the green plug on the left fenderwell toward the firewall and have no power. There it goes into the fuse box but I don't have any power at the plug in the middle of the firewall behind the air cleaner and the goes down to the neutral saftey switch, so where do I need to go from here??
More Turbo
Joined: Aug 2008
Posts: 531
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From: LaGrange
Well I starting tracing the wires back starting at the back up lights. I've traced it all the way up to the green plug on the left fenderwell toward the firewall and have no power. There it goes into the fuse box but I don't have any power at the plug in the middle of the firewall behind the air cleaner and the goes down to the neutral saftey switch, so where do I need to go from here??
Ok,
__presuming that you are working on a 79'-100, with an auto-tranz.
Does the B-lights/windshield wiper-pump fuse has power?
(F-11 in fusebox)
Corrosion of the fuse or terminnals can cause contact prob's as well.
Give a good cleaning of F-box terms, then check to see if it is reciving
power there. If all checks out, put a new fuse in; & check lights again.
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__the washer pump & the reverse lights are powered by the same fuse.
So now we know that they are reciving power.
You need to check to see if the tranz
neutral/reverse switch is getting power to it.
It is mounted on diver's side of the tranz with the shifter linkage.
The wires for it, are on passinger side next to the blower-box.
Within main harness which comes out of the fire-wall.
(look for a gray connector.)
It has four wires, the two you are looking for are:
(whitewith purple stripe power in.)
(black with red stripe is out, to reverse lights.)
__the washer pump & the reverse lights are powered by the same fuse.
So now we know that they are reciving power.
You need to check to see if the tranz
neutral/reverse switch is getting power to it.
It is mounted on diver's side of the tranz with the shifter linkage.
The wires for it, are on passinger side next to the blower-box.
Within main harness which comes out of the fire-wall.
(look for a gray connector.)
It has four wires, the two you are looking for are:
(whitewith purple stripe power in.)
(black with red stripe is out, to reverse lights.)
Thread Starter
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Elder User
Joined: Jul 2008
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Ok,
__the washer pump & the reverse lights are powered by the same fuse.
So now we know that they are reciving power.
You need to check to see if the tranz
neutral/reverse switch is getting power to it.
It is mounted on diver's side of the tranz with the shifter linkage.
The wires for it, are on passinger side next to the blower-box.
Within main harness which comes out of the fire-wall.
(look for a gray connector.)
It has four wires, the two you are looking for are:
(whitewith purple stripe power in.)
(black with red stripe is out, to reverse lights.)
__the washer pump & the reverse lights are powered by the same fuse.
So now we know that they are reciving power.
You need to check to see if the tranz
neutral/reverse switch is getting power to it.
It is mounted on diver's side of the tranz with the shifter linkage.
The wires for it, are on passinger side next to the blower-box.
Within main harness which comes out of the fire-wall.
(look for a gray connector.)
It has four wires, the two you are looking for are:
(whitewith purple stripe power in.)
(black with red stripe is out, to reverse lights.)
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__where did you get your reading?
__where did you get your reading?
At the switch?
Or
At the connector?
Or
At the connector?
Which wire?
With the white with purple stripe.
(or)
The black with red stripe?
With the white with purple stripe.
(or)
The black with red stripe?
Did you pull back the wire's shielding
(plastic coat) to take the reading?
.
(plastic coat) to take the reading?
.
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Elder User
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I got the reading at the grey plug, white w/purple stripe. I didn't unplug it I just poked the probe in touched the metal part.
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More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__I replied last night.
But the F**k**g site mantainance erased it!
& it was shut down for some time.
Allright that's over.
What you need to do is do a short test on the
white with purple stripe wire.
To find out if there is any breaks/shorts in this wire.
(do you have a mutimeter with a continuity setting?)
Let me know.
__I replied last night.
But the F**k**g site mantainance erased it!
& it was shut down for some time.
Allright that's over.
What you need to do is do a short test on the
white with purple stripe wire.
To find out if there is any breaks/shorts in this wire.
(do you have a mutimeter with a continuity setting?)
Let me know.
Thread Starter
|
Elder User
Joined: Jul 2008
Posts: 557
Likes: 0
Ok,
__I replied last night.
But the F**k**g site mantainance erased it!
& it was shut down for some time.
Allright that's over.
What you need to do is do a short test on the
white with purple stripe wire.
To find out if there is any breaks/shorts in this wire.
(do you have a mutimeter with a continuity setting?)
Let me know.
__I replied last night.
But the F**k**g site mantainance erased it!
& it was shut down for some time.
Allright that's over.
What you need to do is do a short test on the
white with purple stripe wire.
To find out if there is any breaks/shorts in this wire.
(do you have a mutimeter with a continuity setting?)
Let me know.
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Good,
__take a 12-14 foot wire wrap it @ least 3 times
around 1 of your testers probes tightly.
Connect the other end of your new test lead wire to
the white with purple stripe inside your fuse box.
You can do this by taking out the 2 screws that
hold the box up. Locate the wire with the
white with purple stripe inside, then make a soild
connection as close to the fuse terminnal as possible.
Then pull back the plastic cover on the wire with
the white with purple stripe up near the gray
connector in the engine bay & take your reading there.
Gotta, sleep.
Later.
__take a 12-14 foot wire wrap it @ least 3 times
around 1 of your testers probes tightly.
Connect the other end of your new test lead wire to
the white with purple stripe inside your fuse box.
You can do this by taking out the 2 screws that
hold the box up. Locate the wire with the
white with purple stripe inside, then make a soild
connection as close to the fuse terminnal as possible.
Then pull back the plastic cover on the wire with
the white with purple stripe up near the gray
connector in the engine bay & take your reading there.
Gotta, sleep.
Later.
Thread Starter
|
Elder User
Joined: Jul 2008
Posts: 557
Likes: 0
Good,
__take a 12-14 foot wire wrap it @ least 3 times
around 1 of your testers probes tightly.
Connect the other end of your new test lead wire to
the white with purple stripe inside your fuse box.
You can do this by taking out the 2 screws that
hold the box up. Locate the wire with the
white with purple stripe inside, then make a soild
connection as close to the fuse terminnal as possible.
Then pull back the plastic cover on the wire with
the white with purple stripe up near the gray
connector in the engine bay & take your reading there.
Gotta, sleep.
Later.
__take a 12-14 foot wire wrap it @ least 3 times
around 1 of your testers probes tightly.
Connect the other end of your new test lead wire to
the white with purple stripe inside your fuse box.
You can do this by taking out the 2 screws that
hold the box up. Locate the wire with the
white with purple stripe inside, then make a soild
connection as close to the fuse terminnal as possible.
Then pull back the plastic cover on the wire with
the white with purple stripe up near the gray
connector in the engine bay & take your reading there.
Gotta, sleep.
Later.
Thread Starter
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Elder User
Joined: Jul 2008
Posts: 557
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Whoops, will have to wait till tomorrow. But tell me what you think, if I have lets say 12 volts by doing that doesn't that tell me I might have a bad ground?? I'll still check that tomorrow or maybe tonight when I get off work..
Thread Starter
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Elder User
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I was able to get away for a few minutes and done the test. 0.0 ohms is what I came up with. No break in the wire.