P0412 valve a problem where is valve a located on a 2002 buick rendezvous

Question edited for clarity and spelling of model name.
Question moved to model category.

Information here. You can probably just clean it.

https://www.700r4transmissionhq.com/p0405-buick-rendezvous/

Location

https://www.google.com/search?q=2002+Buick+Rendezvous+EGR+Location

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Check Fuse 29, but by rights, it also covers the washer.

Buick Rendezvous (2002-2007) fuses and relays

https://fuse-box.info > buick > buick-rendezvous-2002-...
Fuse box diagram - Fuse Box Location. It is located in the passenger's side of the center console near the floor, behind the cover.

Buick Rendezvous (2006 - 2007) - fuse box diagram - Auto ...

https://www.autogenius.info > buick-rendezvous-2006-...
Jan 18, 2017 - The floor console fuse block is located to the left of the glove box near the floor. Buick Rendezvous - fuse box - floor console ...

If that fuse is okay. try giving the wiper motor a jolt by whacking it end on with a broom handle. Can you hear the wiper motor running? Check the linkages.

Others have the same issue

https://www.google.com/search?q=2007+Buick+Rendezvous+CXL+wipers+not+working

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Coolant Flush How to Buick Rendezvous 2002 2007 2005 Buick Rendezvous CX 3...

It is located underneath the driver side seat

Locate the powersteering pump on the top of the passenger side of the engine. If you look in between the pump and the intake manifold you will see the cam sensor. The connector for the sensor is on the front of the engine right above the valve cover on the passenger side. It is has three wires.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

The evaporator drain tube a 2003 Buick Rendezvous is very difficult to find. It will be located on the firewall, in the middle or on the passenger side. You might have to get under the vehicle to find it.----------------------------------------------------------------------------------------
digiprog 3

They are on the valve body in side the pan.

p0412 Secondary air injection switching valve A circuit
Right side of engine compartiment. ( underhood fuse block )
- Air pump fuse 50A- Air control valve relay- ignition1 fuse 10A ( positive for the relay )The secondary air injection pump relay is located near radiator surge tank.Left front of engine compartiment = Secondary air injection pump

the neutral saftey switch or prndl switch is located inside the transmission. refer to a qualified pro for repairs.

There is not a fuse listed for heated seats but fuse 16 is for heated mirrors and fuse 11 is power seats. i'm guessing one of those should also control the heated seats.