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2005 T800 Wiper relay location

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Timberwolf9653, Mar 18, 2026 at 11:45 AM.

Mar 18, 2026 at 11:45 AM #1

Timberwolf9653 Bobtail Member

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Wednesday

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I have a 2005 T800. I am trying to locate the windshield wiper relay. It is not in the fuse panel by the clutch. I do not see it under the hood or in the dash. I've only found the 25amp fuse so far. Does anyone have a clue where to find the relay?

Timberwolf9653, Mar 18, 2026 at 11:45 AM

Timberwolf9653, Mar 18, 2026 at 11:45 AM

#1
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Mar 18, 2026 at 11:46 AM #2

Timberwolf9653 Bobtail Member

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Wednesday

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Timberwolf9653, Mar 18, 2026 at 11:46 AM

Timberwolf9653, Mar 18, 2026 at 11:46 AM

#2
Mar 18, 2026 at 9:03 PM #3

bjytech Light Load Member

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Nov 9, 2013

Ohio

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There is no relay. just the fuse, switch and wiper motor.

bjytech, Mar 18, 2026 at 9:03 PM

bjytech, Mar 18, 2026 at 9:03 PM

#3
Mar 19, 2026 at 3:46 PM #4

Timberwolf9653 Bobtail Member

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0

Wednesday

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I actually found an intermittent dial on the dash. P27-1062. Everything seems to go thru that. The switch on the turn signal runs directly to that then onto the motor. That has built-in relays in it. Gonna replace that and see if it fixes my issue.

Timberwolf9653, Mar 19, 2026 at 3:46 PM

Timberwolf9653, Mar 19, 2026 at 3:46 PM

#4

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