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post #16 of 24 (permalink) Old 04-03-2019, 03:52 PM
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There is no ground in that circuit, the motor gets feed from BCU which is reverting polarity for up/down, check for voltage in the motor's connector and if no voltage there then you are 100% it's not the motor and you can rewire it, if you get voltage it's the motor

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post #17 of 24 (permalink) Old 04-03-2019, 04:46 PM
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2 wire motor. Yes it’s control is by the bcm but every circuit requires a path to ground.
Bcm deciding whether wire “A”is power and wire “B” is ground (window up) or wire “A” is ground and wire “B” is power (window down)
Reverse polarity motor correct?

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post #18 of 24 (permalink) Old 04-03-2019, 06:21 PM Thread Starter
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All good discussion points.

Anyway.... the motor in the door works fine w direct power to it.

Thoughts on finding/fixing my “break” between c0459 and the motor?
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post #19 of 24 (permalink) Old 04-03-2019, 10:32 PM
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Quote:
Originally Posted by sobieski View Post
Anyway.... the motor in the door works fine w direct power to it.

Thoughts on finding/fixing my “break” between c0459 and the motor?
As long as you can't see any obvious chaffed wiring by following the loom better rewire that circuit completely unless it's a bad contact in the motor's plug.
......

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Originally Posted by redtruck12
2 wire motor. Yes it’s control is by the bcm but every circuit requires a path to ground.
Bcm deciding whether wire “A”is power and wire “B” is ground (window up) or wire “A” is ground and wire “B” is power (window down)
Reverse polarity motor correct?
that's correct but my statement with ''no ground" was for accuracy as reply to your previous post:
Quote:
Originally Posted by redtruck12
Again if it’s power deal with that, if it’s ground deal with that.
as he can't deal with ground nor with power on that circuit cos AFAIK the term ''ground'' is about a solid connection to body/battery neg lead which in all the circuits/diagrams is black wire.

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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post #20 of 24 (permalink) Old 04-04-2019, 03:56 AM Thread Starter
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I’ll test the wiring at the motor plug and work my way “back” toward c0459.

Will report back.

Thx.
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post #21 of 24 (permalink) Old 04-13-2019, 02:20 PM Thread Starter
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Broken wire deep inside the wire loom rubber tube between door and footwell.

AND plastic roller on regulator was jenked.

Both fixed.

Appreciate you all, for sure.

Ps. Sierra called this one at the very beginning - thanks Fery.
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post #22 of 24 (permalink) Old 04-13-2019, 05:17 PM
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Quote:
Originally Posted by sierrafery View Post
Can be chaffed wiring where the loom passes between the body and door
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2002 D2 se7 6 seater . complete engine rebuild with flanged liners , 2 inch lift, terrafirma shocks, LT 275/65r18 Cooper stt tires, d1 modified front bumper, safety devices rack, 30" l.e.d. Light bar
2004 D2 se5 (sold)
2001 D2 se5 (parts truck)
2000 D2 se7 (retired)
1997 D1 (sold)
1957 Series 1 88" future projet
2006 Suburu legacy outback (gets me around when the disco is not)
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post #23 of 24 (permalink) Old 04-13-2019, 06:32 PM Thread Starter
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For sure. I second that.
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post #24 of 24 (permalink) Old 04-14-2019, 12:07 AM
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I feel honoured and i'm glad it's sorted

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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