Hevac Fans

[wayneg]

Have lost all fan speeds, presumably both fans have stopped together.
Have read loads on other sites but am confusing myself. As both Fan have stopped I am looking hard at the fusebox, relay 7 works but is burnt and the fusebox shows the dreaded signs of long time overheating. fuses OK
Questions, do both fans stop if relay 7 and its connection go bad.
Is there a quick way to test the fans independently, I see the fans are quite easy to get at, can I just hit them with direct 12v to test, if so where.

Regardless i will be getting a replacement fusebox and in the meantime if the blowers prove ok will follow Rons repair until I can find a guaranteed used one

[mtb_gary]

Wayneg

Quote from RAVE


"Left/Right Blower modules

The blowers have a permanent 12V feed to them.
The speed of the motors is determined by the control
lines which go to the motors. The motors also
provide a voltage feedback to the HEVAC ECU to
determine the actual voltage at the motors but also
to show if there are any faults."

So, in answer to question yes 12v direct to motors is OK, as it should already be present. Also check Fuse 42 and 43 in engine compartment fuse box and fusees 17 (10A) and Fuse 8 (30A) under the drivers seat fuse box.

With the warm weather forecast you're going to need more than an open window.

Good luck, I hope it's not a new control panel!

Gary

[PeterH]

The relays are interchangeable, green for green, yellow for yellow, I would try swapping another of the same colour relays in your fuse box over with the fan relay to see what that does.
Burned relay housing means it's been very hot, which would indicate a potential heat damaged relay.
Worth a shot and does not cost anything.
Cheers, Pete.

[wayneg]

Done some digging and the fans work fine . No power getting to the fans so all points to the fusebox, Bugger. Now lets hope its as straight forward as Rons instructions to dismantle the fuse box for a repair. Anyone got a spare Thor fusebox they want to part with?

[PeterH]

I've seen complete new P38 fuseboxes on ebay,
http://www.ebay.com.au/itm/LAND-ROVER-RELAY-FUSEBOX-FUSE-BOX-COMPARTMENT-RANGE-P38-99-02-YQE103410-OEM-NEW-/180942770474?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a2107912a
might be worth investigating?

[wayneg]

I've seen complete new P38 fuseboxes on ebay,
LAND ROVER RELAY FUSEBOX FUSE BOX COMPARTMENT RANGE P38 99-02 YQE103410 OEM NEW | eBay (http://www.ebay.com.au/itm/LAND-ROVER-RELAY-FUSEBOX-FUSE-BOX-COMPARTMENT-RANGE-P38-99-02-YQE103410-OEM-NEW-/180942770474?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a2107912a)
might be worth investigating?
There are plenty of used in the UK for 15pounds its just a time thing, I will R&R mine and get one for spare.

[PaulP38a]

Anyone got a spare Thor fusebox they want to part with?

I have a spare here that is out on loan to a mate. Pretty sure I will get it back soon and can send it to you. When you get a replacement, send me the better of the two ;)

[ytt105]

I'll drop it off today, Paul. Thanks.

[mtb_gary]

Wayne, what year is your P38. I also have a spare (complete with all relays) in the garage for a GEMS 96 model. I will be South of the river later today if you want to use it until yours arrives.
Gary

[wayneg]

Paul and Gary, Thanks for the offers, I will just hold fire on taking you up. I intend to take mine out tomorrow for a fix , if all goes well I will be ok till I get one sent from the UK. If things dont go to plan I will be in desperate need as on the 4th Feb I will be crossing the Nullabor and cant think of how hot the car will get with no fans.

Paul as you have the Thor unit I might require I will PM you if I need it if thats OK.

I cant believe I have had two offers of a loan part, as always the Landy community comes to the rescue.

[PaulP38a]

Got it here Wayne, ready to go and good as new.

Trev - thanks dropping it back so soon.

[wayneg]

Done the repair on the fusebox. The blower fans have never been better.
Now the killer, the car wont start. I have had the fusebox in and out 3 times to see if I messed up cant find anything. Car cranks but no fire. Good job its a long weekend

[Hoges]

If you have a Thor engine which cranks but doesn't start it may be that the EMS code in the BECM has been corrupted. If you have a Faultmate look at the EMS info and there's a 3 digit security code. Now check the security code in the BECM module...they should be the same. If not, overwrite the BECM code with the EMS code and save it. Disconnect the Faultmate and the engine should start...

[wayneg]

Just what I dont need to hear. There is no power to the fuel pump, I have no diagnostics so now getting into a bottle of Scotch.

[Hoges]

Just what I dont need to hear. There is no power to the fuel pump, I have no diagnostics so now getting into a bottle of Scotch.

Damn! that's a prime telltale symptom :(:wasntme:

Wondering if there's anyone in the Perth region with an unlocked Faultmate who can assist you...

I don't know enough about the capability of the Nanocom - other than I thought it was not necessarily locked to a specific VIN. Can it read the P38 EMS ECU and write to the BECM?

[PaulP38a]

Nanocom will allow you to resynch code from Engine ECU to BeCM. I did it for someone over here a while back.

[wayneg]

With Pauls loan fusebox She fired up 1st pull so my efforts at a repair were not effective. All good now though after a few stressful days. Enjoying the better than ever aircon, it forecast 40c over the weekend so just in time

[Hoges]

Great to get a good news story on the last day of first month of 2013:eek:;)