Heater issue, Legacy BJF

[Suba_534]

Hello guys!

Car - Legacy BJF, USDM

I have a heater issue - fan is working only in Max A/C mode, in others - keeping silent.

1. I've changed the resistor (100% working) - still the same
2. I've changed the heater relay - still the same

On heater fan connector "plus"/power - only when max a/c is turned on. In other modes - no power.

Please help where to dig to find the problem, maybe someone has electrical schemes for USDM BJF?

[arse_sidewards]

Timely thread. Mine works on all the vent modes but the fan just turns off if I set it to high. Guess I should actually get around to looking at the diagram.

[arse_sidewards]

Postimg link to the wiring diagram:

[Suba_534]

Postimg link to the wiring diagram:

Can you please send the whole picture of this page? Need to know where red yellow wire goes from the relay

[arse_sidewards]

[Legacy777]

You may want to review this thread.

It could be bad solder joints on the HVAC control board. You can remove it and resolder

viewtopic.php?f=10&t=1142

[Suba_534]

Thanks, Josh!

Okay, will do it, thanks! Hope it will help!