Desperate for heat (1 Viewer)

[snowday]

Hey all,

I’m having some issues with my ‘98 LX 470. I have zero air coming from the vents up front. All speeds were working fine yesterday and this morning none of them worked. I have replaced the blower motor but still no luck. Can anyone tell me the location of the blower resistor? It’s 0 degrees and getting colder so I would love to get this resolved. Thanks for any help.

 

[Mike NXP]

Hey all,

I’m having some issues with my ‘98 LX 470. I have zero air coming from the vents up front. All speeds were working fine yesterday and this morning none of them worked. I have replaced the blower motor but still no luck. Can anyone tell me the location of the blower resistor? It’s 0 degrees and getting colder so I would love to get this resolved. Thanks for any help.

Do you have power do the blower motor?

I'm not sure, maybe a blown fuse?

 

[ClassyJalopy]

I had a similar issue a while back on my 98. It was due to some corrosion on plugs that connects to the motor.

 

[snowday]

Do you have power do the blower motor?

I'm not sure, maybe a blown fuse?

Yes, it has power to the motor.

 

[snowday]

I had a similar issue a while back on my 98. It was due to some corrosion on plugs that connects to the motor.

My connections look to be ok.

 

[Mike NXP]

My connections look to be ok.

What climate control do you have, is it with the built in navigation or the dials?

 

[snowday]

What climate control do you have, is it with the built in navigation or the dials?

Dials

 

[Mike NXP]

Dials

Hmm, but wait if you have power to the blower and the blower isn't turning doesn't that mean it's a bad blower?

I'd be curious if you put 12volts right to the blower ( from a battery or something ) ..would it spin?

 

[snowday]

Hmm, but wait if you have power to the blower and the blower isn't turning doesn't that mean it's a bad blower?

I'd be curious if you put 12volts right to the blower ( from a battery or something ) ..would it spin?

That’s what I thought too. First thing I did was check for power and had it so I thought it must be the blower which is why I replaced it.

 

[ClassyJalopy]

Man I feel your pain - this week is cold even for upper mid-west.
@Ayune any chance you may have the wiring diagram for the blower motor? May be any tips on how to test this?

 

[nissanh]

With an OEM unit or A/M junk?

Did you mount it correctly so that the fan can spin freely and is not touching and jamed. A/M units are not always well made, and may have incorrect dimentions.

 

[snowday]

With an OEM unit or A/M junk?

Did you mount it correctly so that the fan can spin freely and is not touching and jamed. A/M units are not always well made, and may have incorrect dimentions.

I’m pretty sure I did. It doesn’t appear to be hanging up anywhere.

 

[snowday]

Man I feel your pain - this week is cold even for upper mid-west.
@Ayune any chance you may have the wiring diagram for the blower motor? May be any tips on how to test this?

Yes it it! A diagram would be great.

I can’t seem to find anything with a definitive answer on where the transistor or relay is.

 

[snowday]

Can anyone confirm if this is the transistor? It doesn’t look like the typical blower motor transistors I have seen in the past.

 

[GJMacK3]

That's the resistor. If the fuses are good, then that's your culprit.

 

[snowday]

That's the resistor. If the fuses are good, then that's your culprit.

Thank you! Do you know exactly which fuse? Just want to double check everything and make sure I was checking the right one.

 

[shevy77]

I believe that part is the blower motor control relay. I have attached a picture from the FSM with the test procedure (FSM is 2004).

 

[snowday]

I believe that part is the blower motor control relay. I have attached a picture from the FSM with the test procedure (FSM is 2004).View attachment 3197692

Looks like you’re right

 

[Ayune]

Here are the wiring diagrams for the ‘98 year:

 

[excessive]

this forum amazes me. thank you all for what you do to support the community