LS430 D-ACC Relay Access

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Xplant - 03 Jul 2008 17:18 GMT

I tried on Club Lexus but got no response so trying here:

I have an '02 LS430. The front cigarette lighter and the power outlet in
front console have no power, even with key 'on'. Fuses are good. According
to Elec Wiring Diagram (pub. EWD457U), page 72, there is a relay ('D-ACC')
that feeds these 2 fuses. The relay is located in left kick panel junction
box (page 28 of pub.)

When I view the junction box I can't see the relay due to the carpeting that
surrounds junction box. Is there a secret on how to access this or do you
just have to tear the carpet away to get at it? Seems there should be an
easier way to access.

Any help would be appreciated! Thanks.

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Ray O - 04 Jul 2008 03:59 GMT

>I tried on Club Lexus but got no response so trying here:
>
[quoted text clipped - 10 lines]
>
> Any help would be appreciated! Thanks.

The inside of the junction box cover should have a schematic that shows the
location of the relay. If that doesn't help, look above the JB. If that
doesn't work, report back and I'll climb under my dash.

By any chance, did you plug in something with a high draw into both of those
outlets? The outlet has a thermal fuse and you have to replace the outlets
if the thermal fuse has blown. To check that, you have to check for voltage
where the wire connects to the back of the outlet.

Signature

Ray O
(correct punctuation to reply)

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Xplant - 04 Jul 2008 18:26 GMT

>>I tried on Club Lexus but got no response so trying here:
>>
[quoted text clipped - 19 lines]
> outlets if the thermal fuse has blown. To check that, you have to check
> for voltage where the wire connects to the back of the outlet.

Ray--

Thanks for your response. I have a layout of where the relay is in my
electrical schematic manual. I will send you a picture of the junction box
and approximate location of relay, and a scan of the manual page to your
email address.

I bought the car used 3+ years ago, and it has never worked. Oddly my in
laws have a newer ES330 with the same problem (they also bought used).

Thanks for the tip on the thermal fuse, but wouldn't that disable just the
lighter and not the power port in the console as well?

Also, thanks for ALL your valuable posts!

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Ray O - 04 Jul 2008 19:09 GMT

>>>I tried on Club Lexus but got no response so trying here:
>>>
[quoted text clipped - 34 lines]
>
> Also, thanks for ALL your valuable posts!

I'll keep an eye out for your e-mail. I'll be in and out all weekend as we
have visitors from out of town.

A lot of people who work on the road use inverters to power things like
laptops, and some inverters draw current right at or below the threshold
where a fuse would blow over a long period of time, causing the thermal fuse
in the socket to fail. The thermal fuse doesn't blow right away, so people
don't associate the inverter as the cause. After one outlet fails, they
replace the fuse, the outlet still doesn't work, so they use another outlet
in the car, causing the same problem.

For example, let's say a laptop draws 1.5 amps at 120 volts. The DC to AC
conversion isn't exact, but using the E= I x R formula, at 12 volts, that
works out to roughly 15 amps, which is what most accessory sockets are fused
at.

You're welcome on the posts - I enjoy puzzles.

Signature

Ray O
(correct punctuation to reply)

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