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Zoro
November 20th, 2006, 07:38
My 98 TJ's blower motor went out so I picked up a new one and the guy at the dealer told me the easiest way to change it out on a 98 is to pull the ENTIRE dash, turns out the motor is accessed right behind the battery.

Anyways I have the new blower motor in and when the truck is not running but key on and I hit the switch for the heat the blower motor and relay wine but nothing happens, when the truck is running and I turn the blower motor on I get warning tones, the dash light goes on and both turn signal indicator lights are fixed on, the ONLY wire I unplugged under the dash was for the passenger side airbag. Is this why the blower motor isn't working & I'm getting all the stuff on the cluster when I switch the blower on?

I've been told that 97-01 XJ's are setup the same way...

87manche
November 20th, 2006, 07:56
sounds to me like a ground problem, and when you turn on the blower it's grounding through paths it shouldn't be, causing all sorts of weird symptoms.

Zoro
November 20th, 2006, 08:13
Could it be the computer by any chance? I've left it unplugged from the battery overnight. Years ago I had a 98 Voyager, changed the battery and similar symptoms happened when I'd touch anything electrical, $65 later at the dealer it was fixed :(

Zoro
November 20th, 2006, 08:52
When I put the old blower motor in NOTHING happens, I just get a click from the relay.

I tested both motors and the only one that works when hooked up to power is the new one.

Zoro
November 20th, 2006, 10:14
I think there's a short somewhere, when the new blower motor is hooked straight to the battery it works as it should, when I cross the leads that go to the blower motor I get all the stuff on the instrument panel I get when the blower motor is plugged in.

Any ideas?

Zoro
November 20th, 2006, 14:42
Figured it out, bypassed the ground and it works as it should