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Outside temp display on a 93 190e
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CarGuru > Mercedes > Outside temp display on a 93 190e 4 October 2005 07:26:38

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Outside temp display on a 93 190e

Wjbell 6 April 2005 02:19:34
 Does anyone know where the connector(s) for the outside temp display
plug in at? I saw a picture of the display and it showed to wire
harnesses coming out of it with connectors at the end. My temp display
doesn't work at all (the screen is blank) and I'm wondering if someone
just unplugged it.

I looked under the dash to try and find where it plugged in but I
couldn't locate anything in the maze of wires under there.

I also pulled the dash out as far as I could with the spedo cable
connected and didn't see anything there either.

Any help would be appreciated.
Add comment
Karl 6 April 2005 06:10:18 permanent link ]
 You are going to hate where it is..... it is under the fusebox. Inside the box under the fusebox!

But, it is not disconnected. 99 out of 100, when the display is blank the sensor is open.


"wjbell" <wjbell@belletc.net­> wrote in message
news:W9E4e.9701$FN4­.6441@newssvr21.news­.prodigy.com...> Does anyone know where the connector(s) for the outside temp display> plug in at? I saw a picture of the display and it showed to wire> harnesses coming out of it with connectors at the end. My temp display> doesn't work at all (the screen is blank) and I'm wondering if someone> just unplugged it.>
I looked under the dash to try and find where it plugged in but I> couldn't locate anything in the maze of wires under there.>
I also pulled the dash out as far as I could with the spedo cable> connected and didn't see anything there either.>
Any help would be appreciated.


Add comment
Wan-ning Tan 6 April 2005 08:55:13 permanent link ]
 Agree with what Karl says. If the display is intact, not broken LCD,
the sensor (behind front license plate) is usually the culprit. The LCD
shows blank when the sensor goes out of range (resistance too high or
too low).

I replaced the sensor on my 84 190D, not going under the fusebox (too
much trouble). I just cut the wire near the left fender...

If the LCD display does break, go find a used one (either junkyard or
eBay). A new one from dealer is probably more than $200.

Karl wrote:
You are going to hate where it is..... it is under the fusebox. Inside the box under the fusebox!>
But, it is not disconnected. 99 out of 100, when the display is blank the sensor is open.>
"wjbell" <wjbell@belletc.net­> wrote in message> news:W9E4e.9701$FN4­.6441@newssvr21.news­.prodigy.com...>
Does anyone know where the connector(s) for the outside temp display>>plug in at? I saw a picture of the display and it showed to wire>>harnesses coming out of it with connectors at the end. My temp display>>doesn't work at all (the screen is blank) and I'm wondering if someone>>just unplugged it.>>
I looked under the dash to try and find where it plugged in but I>>couldn't locate anything in the maze of wires under there.>>
I also pulled the dash out as far as I could with the spedo cable>>connected and didn't see anything there either.>>
Any help would be appreciated.>

Add comment
Wjbell 6 April 2005 09:30:35 permanent link ]
 Ok, thanks guys. So in order to replace the sensor you have to either
replace it all the way back to the fuse box where it plugs in, or cut
and splice a new sensor in? Does cutting it affect the accuracy too
much? Is it just a single wire?

Wan-ning Tan wrote:> Agree with what Karl says. If the display is intact, not broken LCD, > the sensor (behind front license plate) is usually the culprit. The LCD > shows blank when the sensor goes out of range (resistance too high or > too low).>
I replaced the sensor on my 84 190D, not going under the fusebox (too > much trouble). I just cut the wire near the left fender...>
If the LCD display does break, go find a used one (either junkyard or > eBay). A new one from dealer is probably more than $200.>
Karl wrote:>
You are going to hate where it is..... it is under the fusebox. Inside the box under the fusebox!>>
But, it is not disconnected. 99 out of 100, when the display is blank the sensor is open.>>
"wjbell" <wjbell@belletc.net­> wrote in message>> news:W9E4e.9701$FN4­.6441@newssvr21.news­.prodigy.com...>>
Does anyone know where the connector(s) for the outside temp display>>>plug in at? I saw a picture of the display and it showed to wire>>>harnesses coming out of it with connectors at the end. My temp display>>>doesn't work at all (the screen is blank) and I'm wondering if someone>>>just unplugged it.>>>
I looked under the dash to try and find where it plugged in but I>>>couldn't locate anything in the maze of wires under there.>>>
I also pulled the dash out as far as I could with the spedo cable>>>connected and didn't see anything there either.>>>
Any help would be appreciated.>>
Add comment
Wjbell 6 April 2005 09:38:18 permanent link ]
 Also, isn't the display suppose to be backlit? That's why I thought the
display itself was unplugged because there's no backlight and no display
at all.
Add comment
Wan-ning Tan 7 April 2005 09:00:04 permanent link ]
 The sensor is quite sensitive so a good, clean connection is necessary.
I used solder. There are two wires.

The LCD display is backlit. If there is no light, you need to check the
assembly. It just sits inside the cluster housing but is a completely
separate unit and it is lighted by itself, not by the light from
cluster. The wires (contains 5 wires, 2 from sensor, +, ground and
light) are directly behind the unit so trace from its back. The wires
are about 12" long, shape like "Y".

wjbell wrote:> Also, isn't the display suppose to be backlit? That's why I thought the> display itself was unplugged because there's no backlight and no display> at all.

Add comment
Guest 4 October 2005 07:26:38 permanent link ]
 I have a 93 Isuzu Trooper tail lights don't come on but the front lights come on when turned on I checked the fuses and replaced bulbs please someone help
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CarGuru > Mercedes > Outside temp display on a 93 190e 4 October 2005 07:26:38

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