peterbilt wiring scematic

acegreaser · 01-30-2010, 01:15 PM

I need the wiring scematic for a 2005 357 with cat c13.Need schematics for cab and chasis and engine showing all info.Tried 2 different dealerships and they have emailed me the wrong ones each time.Working on clutch fan and is not getting signal from ecm to shut fan off.ECM keeps saying ac high pressure switch is on.Checked wiring with ohm meter to the switch and fan solenoid.No broken wires.Changed both ac switches and charged ac at dealers recomendation knowing that wasn't the problem.If any body could help i would much appriciate it.I think the driver in the ecm might have gone bad i have a test ECM but i don't want to plug in until i have correct schematics.Thanks.

379Longhood · 01-30-2010, 01:22 PM

Quote:

Originally Posted by acegreaser

I need the wiring scematic for a 2005 357 with cat c13.Need schematics for cab and chasis and engine showing all info.Tried 2 different dealerships and they have emailed me the wrong ones each time.Working on clutch fan and is not getting signal from ecm to shut fan off.ECM keeps saying ac high pressure switch is on.Checked wiring with ohm meter to the switch and fan solenoid.No broken wires.Changed both ac switches and charged ac at dealers recomendation knowing that wasn't the problem.If any body could help i would much appriciate it.I think the driver in the ecm might have gone bad i have a test ECM but i don't want to plug in until i have correct schematics.Thanks.

Try www.supermiller.com look on the right side of the page and down to schematics

(this link came from 359Kool just passing it along)

domniman2002 · 01-31-2010, 01:40 AM

just go in and put the ecm in test mode....connect it and see if the fan shuts off...it sounds like an ecm problem. pin 11 is the driver for the fan. this is how we check it. we have ran into this a couple of times. need to go into the parameters and check fan run time and change if needed. there is fuse in the fuse box that is marked aux fan and if the fuse is blown this will also keep the fan on. jump the high pressure switch with a paperclip on the harness side and see if the fan status will read off......

acegreaser · 01-31-2010, 12:31 PM

Thanks for the help and link for schematics.I found a third pressure switch that was missing on the discharge hose from the compressor.The plug was taped up in the harness by the compressor.I jumped the plug and the fan shut off.Thanks again for the help.

black_dog106 · 01-31-2010, 12:36 PM

Quote:

Originally Posted by 379Longhood

Try www.supermiller.com look on the right side of the page and down to schematics

(this link came from 359Kool just passing it along)

Great link 379Longhood. Do you know of a link to KW info???...

379Longhood · 01-31-2010, 10:44 PM

Quote:

Originally Posted by black_dog106

Great link 379Longhood. Do you know of a link to KW info???...

Haven't seen any KW links, But I would guess that the electric system should be similar I always get KW parts from the pete dealers here. Sorry it took so long to reply I got caught up in the DRAWMA abt manifolds

pullingtrucker · 02-01-2010, 01:35 PM

Quote:

Originally Posted by 379Longhood

Try www.supermiller.com look on the right side of the page and down to schematics

(this link came from 359Kool just passing it along)

Thank you to you and 359Kool. I found a few schematics that I've been wanting for a while. Now I only need the CAT repair manual with a wiring schematic for my MXS. Thanks again guys.

absolutediesel · 02-14-2010, 03:56 AM

nice ...... good find Thanks

01-30-2010, 01:15 PM	#1
acegreaser Junior Member Join Date: Apr 2007 Posts: 133 Points: 22,491 Thanks: 4 Thanked 5 Times in 5 Posts	peterbilt wiring scematic I need the wiring scematic for a 2005 357 with cat c13.Need schematics for cab and chasis and engine showing all info.Tried 2 different dealerships and they have emailed me the wrong ones each time.Working on clutch fan and is not getting signal from ecm to shut fan off.ECM keeps saying ac high pressure switch is on.Checked wiring with ohm meter to the switch and fan solenoid.No broken wires.Changed both ac switches and charged ac at dealers recomendation knowing that wasn't the problem.If any body could help i would much appriciate it.I think the driver in the ecm might have gone bad i have a test ECM but i don't want to plug in until i have correct schematics.Thanks.

01-31-2010, 01:40 AM	#3
domniman2002 PB SHOP FOREMAN Join Date: Aug 2009 Location: NASHVILLE Posts: 97 Points: 9,871 Thanks: 0 Thanked 13 Times in 11 Posts	just go in and put the ecm in test mode....connect it and see if the fan shuts off...it sounds like an ecm problem. pin 11 is the driver for the fan. this is how we check it. we have ran into this a couple of times. need to go into the parameters and check fan run time and change if needed. there is fuse in the fuse box that is marked aux fan and if the fuse is blown this will also keep the fan on. jump the high pressure switch with a paperclip on the harness side and see if the fan status will read off...... __________________ SHOP FOREMAN FOR PETERBILT IN THE GREAT STATE OF TENNESSEE.....28YRS JOURNEYMAN TECH

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01-31-2010, 12:31 PM	#4
acegreaser Junior Member Threadstarter Join Date: Apr 2007 Posts: 133 Points: 22,491 Thanks: 4 Thanked 5 Times in 5 Posts	Thanks for the help and link for schematics.I found a third pressure switch that was missing on the discharge hose from the compressor.The plug was taped up in the harness by the compressor.I jumped the plug and the fan shut off.Thanks again for the help.

02-14-2010, 03:56 AM	#8
absolutediesel Junior Member Join Date: Feb 2010 Posts: 31 Points: 573 Thanks: 1 Thanked 3 Times in 3 Posts	nice ...... good find Thanks

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