Question: fans

[surfer93]

When a error is set, does the ECM turn the fans on through the relays or directly?

I am brain dead today?

 

[vetteoz]

There are fan relay(s).The high current draw is way too much for the ECM to handle directly

 

[surfer93]

Was hoping my 28 code was a bad relay, well I guess it is either the a/c relay or the evap solenoid.

 

[surfer93]

Is the a/c clutch relay built into the a/c compressor?

Thanks!

Trying to test this relay.

 

[vetteoz]

Is the a/c clutch relay built into the a/c compressor?

As I recall A/c clutch is controlled through the blower control module. Circuit is grounded at the module
Solid state , no relay

 

[surfer93]

The FSM says to check the a/c clutch control relay, cannot find the stupid thing.

 

[TWISTERUP]

If you have C68 system and auto trans--should be right side/rear of engine compartment on inner fender--two brown wires-one green wire and one green/white wire.

 

[surfer93]

If you have C68 system and auto trans--should be right side/rear of engine compartment on inner fender--two brown wires-one green wire and one green/white wire.

It is, thank you VERY much, the FSM just showed a picture.