Central instrument panel not working?

**RSW Vogue 2004** · 4th February 2021, 12:57 PM

G'day Gentlemen of the Brains Trust.

The panel below the two central vents on the dash is not working at all, save the parking light/sensors and the height control lights.
The temperature control, heated seats, DSC, fan speed and front and rear heater demister. The rear seat fan is running full bore and can not be turned off by switch. I have removed most of the fuzes in the glovebox for no success, can anyone point my nose in the right direction.

Thanks in advance

**irubix** · 5th February 2021, 07:48 AM

Do you have LR scan tool like IIDTool or something you can pull the codes? This would be my first port of call.

**NUTTTR** · 7th February 2021, 11:19 PM

If there is no success removing fuses, then I'd suggest looking at earth's... No idea where they are for that!

You aren't getting water into the fuse box are you? And no one has mucked about with the fuse box adding extra relays?

**RSW Vogue 2004** · 8th February 2021, 10:16 AM

nobody has been messing with the fuses or relays, just driving up the driveway front air went off and rear air blower up to full bore. I have had no problems with water entering the fuses.

I'll have to read up on the GAP IID tool to be able to read the codes.

**theelms66** · 8th February 2021, 06:01 PM

Try a hard reset . You know!
Disconnect battery, touch cables together etc.

**irubix** · 9th February 2021, 10:53 AM

Originally Posted by theelms66

Try a hard reset . You know!
Disconnect battery, touch cables together etc.

This has saved me a few times! Good idea

**harlie** · 15th February 2021, 10:35 AM

You say there is a blower fan running? The "Final Stage Resistor" or FSR (manual calls it the "blower fan control module) is what controls the fan speed. It has a permanent 12V supply and the AC ECU provides a signal wire (2-5v) telling it what fan speed to run. If the FSR has failed it will either run the fan and not turn off - or no fan at all....

There is an FSR for the front blower fan located above the drivers' footwell, and one for the rear seat blower fan in the center console.

If you have a fan going full stick - Job #1 is unplug the FSR. it may be shorting the signal wire from the ECU causing funny stuff.

**harlie** · 15th February 2021, 10:47 AM

What car we talking about?
this is 07-09:

RearBlower.PNG

below is from RAVE manual for 02-05. It's the same, but the FSR is called "Output Stage" in this document. 02-05 have a different control panel (thumb dial vs rotary dial), but the system works the same.
RearBlower2.jpg

**RSW Vogue 2004** · 22nd February 2021, 06:44 PM

Originally Posted by irubix

This has saved me a few times! Good idea

I have done this twice now (to be sure, to be sure) still no joy.

**RSW Vogue 2004** · 22nd February 2021, 06:49 PM

Originally Posted by harlie

You say there is a blower fan running? The "Final Stage Resistor" or FSR (manual calls it the "blower fan control module) is what controls the fan speed. It has a permanent 12V supply and the AC ECU provides a signal wire (2-5v) telling it what fan speed to run. If the FSR has failed it will either run the fan and not turn off - or no fan at all....

There is an FSR for the front blower fan located above the drivers' footwell, and one for the rear seat blower fan in the center console.

If you have a fan going full stick - Job #1 is unplug the FSR. it may be shorting the signal wire from the ECU causing funny stuff.

Now there is something I didn't know, I'll check it out in the morning. I have rung the dealer and waiting for his call back, but I'll check it out in the morning.

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