legacycentral bbs

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?

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.

Postimg link to the wiring diagram:

arse_sidewards wrote: Sat Feb 28, 2026 10:58 pm 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

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

Thanks, Josh!

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