Installed jhm shifter now parking brake won't disengage

[Papachristou]

Well, shifter feels great but my parking brake won't disengage and says error. Any way to manually release it?

[A4INGS]

Is the switch plugged in?

[Papachristou]

Yes, switch has power and it works but the computer says parking brake malfunction.

[lettuce]

it probably has something to do with the new shifter you installed.

[Papachristou]

Manual shifter causing electronic brake issues? Doubtful at best.

It's probably something to do with unplugging the switch while the brake was engaged. Needs reset but I don't have software.

Anyway, so is there a manual release anywhere?

[van462]

The parking brakes are servo driven with no manual release. You may want to try disconnecting the battery and open a door so the dome light may bleed off residual voltage. Reconnect and see if it re initializes. The only way I know to back off the parking brake disconnect the harness at each motor and apply 12 volts to the 2 wires inside. polarity on the two pins determines motor turning direction.

Edit: be sure to just momentarily drive the motor and not leave it connected to the power source.

[Papachristou]

So use a spare battery and apply a +/- lead to the wires inside? Is there a DIY on this?

[van462]

It is mentioned in a few of the brake pad change threads.

[van462]

Also noticed you have APR software. You can do a code clear using that and it may reset as well.

[Papachristou]

That was old car . I have a trip tomorrow's. Any one have a link to the DIY?

[Crucible35]

The EPB will auto disengage when you apply the throttle while in drive or reverse.....did you try that?

[IHave2Turbos]

I know this isn't exactly a DIY but if you get Carista you can do the parking brake motor on/off through your phone.

+1 for @Crucible35 my brake will disengage automatically when you give slight throttle. I do not have AHH (only have the single function switch)

[Papachristou]

The EPB will auto disengage when you apply the throttle while in drive or reverse.....did you try that?

It's a manual, didn't work. Dealer reset it.