Pioneer Parking Brake Bypass

MattP725 · 01-15-2012, 08:47 PM

Does anyone have specifics on which model relay will work? I'd specifically like to find one locally at radioshack.

BigNate · 01-15-2012, 08:50 PM

any SPDT relay will work and yes you can get one from radio shack. However if it is a Nav unit the relay bypass will not work.

85 - Remote Turn-on
86 - Ground
30 - Ground
87 - Parking Brake Input Wire
87a - not used

cdoxp800 · 01-15-2012, 08:57 PM

Diagram..

kenchan · 01-15-2012, 09:09 PM

Cool!

I should make one next time. I just ran a manual momentary switch on mine.

MattP725 · 01-16-2012, 12:00 PM

Thanks guys.

My_third_Z · 01-28-2012, 11:27 AM

Someone posted this before and I asked this same question, but no one gave me an answer that satisfied me. Why is this relay necessary?
I've installed multiple video headunits and always grounded the parking brake wire directly, with no relay. I've never had a problem. To me, why does it matter if the parking brake wire is only grounded when the head unit is on?

Bonzo · 01-28-2012, 11:48 AM

Quote:

Originally Posted by My_third_Z

Someone posted this before and I asked this same question, but no one gave me an answer that satisfied me. Why is this relay necessary?
I've installed multiple video headunits and always grounded the parking brake wire directly, with no relay. I've never had a problem. To me, why does it matter if the parking brake wire is only grounded when the head unit is on?

I'm working on this just today and have the same question. Why not just ground it and be done?

BigNate · 01-28-2012, 05:12 PM

If the pioneer radios see a ground when they power up they assume it has been bypassed. So the relay will energize After the radio is turned on simulating the brake being applied after the car was started

MattP725 · 01-28-2012, 06:47 PM

Exactly... I just want to add one note. You don't need a double throw relay like mentioned above. I found a single throw SPST that works fine at Radioshack.. in the midst of my install but I have run the car with the relay and watched a DVD (with parking brake off).

My_third_Z · 01-28-2012, 07:22 PM

Quote:

Originally Posted by BigNate

If the pioneer radios see a ground when they power up they assume it has been bypassed. So the relay will energize After the radio is turned on simulating the brake being applied after the car was started

Gotcha. Thanks for explaining it.

Boost_lee · 01-29-2012, 06:25 AM

I'm running the same relay setup on my 4300 and it works flawlessly

arnoldas · 12-08-2012, 05:45 PM

Quote:

Originally Posted by BigNate

If the pioneer radios see a ground when they power up they assume it has been bypassed. So the relay will energize After the radio is turned on simulating the brake being applied after the car was started

If I have a kenwood headunit can I ground the parking brake wire directly to the body without a relay?

Gmendez · 12-11-2012, 01:42 PM

I have the x920BT in my 2010 NISMO and simply grounded the parking brake wire. Works perfectly. Not shure why there is still so much hoopla over the need for a relay.

Nillaz · 12-11-2012, 01:56 PM

Quote:

Originally Posted by arnoldas

If I have a kenwood headunit can I ground the parking brake wire directly to the body without a relay?

This will work. No need for a relay with Kenwood units.

01-15-2012, 08:47 PM	#1 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	Pioneer Parking Brake Bypass Does anyone have specifics on which model relay will work? I'd specifically like to find one locally at radioshack.

01-15-2012, 08:50 PM	#2 (permalink)
BigNate Base Member Join Date: Jan 2012 Location: Charlotte, nc Posts: 87 Drives: 07 Element SC Rep Power: 13	any SPDT relay will work and yes you can get one from radio shack. However if it is a Nav unit the relay bypass will not work. 85 - Remote Turn-on 86 - Ground 30 - Ground 87 - Parking Brake Input Wire 87a - not used __________________ MECP Master Certified Installation Technician Don't worry I've never done this before

01-28-2012, 05:12 PM	#8 (permalink)
BigNate Base Member Join Date: Jan 2012 Location: Charlotte, nc Posts: 87 Drives: 07 Element SC Rep Power: 13	If the pioneer radios see a ground when they power up they assume it has been bypassed. So the relay will energize After the radio is turned on simulating the brake being applied after the car was started __________________ MECP Master Certified Installation Technician Don't worry I've never done this before

01-29-2012, 06:25 AM	#11 (permalink)
Boost_lee A True Z Fanatic Join Date: Feb 2009 Location: SATX Posts: 2,813 Drives: 09 370Z TT 6MT Rep Power: 29	I'm running the same relay setup on my 4300 and it works flawlessly __________________ My TT Z

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01-15-2012, 09:09 PM	#4 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	Cool! I should make one next time. I just ran a manual momentary switch on mine.

01-16-2012, 12:00 PM	#5 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	Thanks guys.

01-28-2012, 11:27 AM	#6 (permalink)
My_third_Z Enthusiast Member Join Date: Feb 2011 Location: Charleston,SC Posts: 312 Drives: Blue 09 370z Rep Power: 14	Someone posted this before and I asked this same question, but no one gave me an answer that satisfied me. Why is this relay necessary? I've installed multiple video headunits and always grounded the parking brake wire directly, with no relay. I've never had a problem. To me, why does it matter if the parking brake wire is only grounded when the head unit is on?

01-28-2012, 06:47 PM	#9 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	Exactly... I just want to add one note. You don't need a double throw relay like mentioned above. I found a single throw SPST that works fine at Radioshack.. in the midst of my install but I have run the car with the relay and watched a DVD (with parking brake off).

12-11-2012, 01:42 PM	#13 (permalink)
Gmendez Base Member Join Date: Mar 2010 Location: Miami, FL Posts: 114 Drives: '10 PW 370Z NISMO Rep Power: 15	I have the x920BT in my 2010 NISMO and simply grounded the parking brake wire. Works perfectly. Not shure why there is still so much hoopla over the need for a relay.