hi guys
my paddle shift is not working
my upshift works but down shift doesnt..
i cant downshift using the gear leaver but not with the paddle shift..
i'v changed the paddles with new oem items but still the downshift does not work..
does anything have any idea?

 

If the RPMs are too high, it will not downshift until it reaches a safe RPM.

Koz

 

^what he said.

it's not a DSG/SMG. it's still controlled by the car. can't override it.

 

he siad he can downshift with shift gear, just not paddle. check ur wire connections to see if they are plugged in all the way.. if yes... take it to a dealership to get it checked out.

 

took apart thewhole thing
the wires seem to be in tact nothing loose
cant take it to the dealers no more
im out of warranty

 

I rarely use the paddle shifter, but if it really bugs you bring it in for a check. That's the easiest way to go.

 

If you know how to use a multi-meter, you can check the paddle/switch itself by first checking to see if there is a signal (voltage) going to the paddle. If there is, trigger the paddle isolating and check if the signal passes through the switch. You can verify if the paddle is defective by isolating the paddle/switch (unplugging all wires to paddle) and check for continuity while triggering the paddle.

Koz

 

might give that a shot

 

if all else fails, reset the ECU, maybe a long shot, but doesnt hurt to try.

 

could it possibly be a fuse?

 

If you do not have voltage going to the paddle/switch then it could be a fuse but one paddle is working. If there is no voltage to the switch and the fuse is good I think it may be time to have a Tech look at it. This circuit is interlocked with the trans and engine cpu as not to allow the trans to downshift if the RPMs are too high.

Just a guess, but I would think the paddle/switch is bad (Mechanical parts are first to fail).

Koz

 

hm..
but i have replaced it with new paddles and still the same..
it has to be the wiring..

 

You could have avoided replacing the paddles by checking them with a meter. You can poke and hope and waste money and time forever. There are many factors that must be met before the trans is allowed to downshift. Time for Tech to take a look!

Koz

 

yeah hopefully lexus might let me off
i might be in luck the service manager at my dealer knows me cuz i got a rx350 and he might arrange something for me to go under warranty