- RADIATOR FAN H1 & H2 NOT COMING ON

1999 Nissan Quest

Tiny

amos715

August, 24, 2011 AT 1:24 AM

1999 Nissan Quest - Radiator Fan H1 & H2 Not Coming On

it started with old radiator fan motor burning up. The 20amp fuse blew as well.

replaced fan assembly (new shroud, fan blades, motor) and fuse.

now the A/C doesn't get cold, and radiator fan does not turn on for what I assume is suppose to be the H1 H2. (The Lo comes on when I start the van cold and turn the A/C on)

any ideas?

3 Answers

Tiny

rasmataz

August, 24, 2011 AT 1:28 AM

Inspect and test the coolant temperature sensor and the fan relays, could also be the computer controlled circuit of the relay

Tiny

amos715

August, 24, 2011 AT 1:35 AM

Awesome, is there a fsm picture that shows where the coolant temp sensor should be.

I found the fan relays, but I have no idea on how to test them, can I just take the Lo out with pliers and plug it into the H1?

Thanks

Tiny

rasmataz

August, 24, 2011 AT 1:48 AM

Swap it around the CTS in top of engine in intake manifold

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