Question about 2006 BMW 530i Sedan

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Where is the location of BMW 5 series Trunk release relay

I am looking for the location of the relay that powers the latch, not the switches.

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  • BMW Master
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Hi DK
the relay that powers to boot motor release is in the boot section of fuses and relays, it is number F53 relay
hope that helps

Posted on Dec 23, 2014

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Posted on Jan 02, 2017

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3 Answers

2008 CTS trunk won't unlock


Hi Jeff,
I was going to say, check fuse/ jump the load side of relay Good post.
trunk 1-a4vvaacye2kqxo12bveg1ioe-1-0.jpg

trunk 2-a4vvaacye2kqxo12bveg1ioe-1-2.jpg

Mar 19, 2017 | Cars & Trucks

1 Answer

My trunk will not open. When I take off battery cable and replace, it opens once. Is there an easy fix? relay etc?


When the rear compartment lid release switch is pushed, the rear compartment lid release signal circuit to the body control module (BCM) is grounded. BCM then grounds the coil side of the trunk release relay through the trunk release relay control circuit. With this voltage is applied to the rear compartment lid release actuator, opening the rear compartment.
Rear Compartment Lid Release Relay
  1. Ignition OFF, disconnect the trunk relay.
  2. Test for 65-90 ohms of resistance between terminals 85 and 86.
  3. ?‡'
    If the resistance is not within the specified range, replace the trunk relay.

  4. Test for infinite resistance between the following terminals:
  5. ?€¢
    30 and 86


    ?€¢
    30 and 87


    ?€¢
    30 and 85


    ?€¢
    85 and 87


    ?‡'
    If less than infinite resistance, replace the relay.

  6. Install a 10-amp fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Measure for less than 2 ohms of resistance between terminals 30 and 87.
?‡'
If greater than 2 ohms, replace the relay.


Rear Compartment Lid Release Relay Malfunction

  1. Ignition OFF, disconnect the trunk relay.
  2. Verify that a test lamp illuminates between the coil side B+ circuit of the trunk relay and ground.
  3. ?‡'
    If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the voltage control circuit for a short to ground. If the circuit tests normal, test or replace the trunk relay.

  4. Verify that a test lamp illuminates between the switch side B+ circuit of the trunk relay and ground.
  5. ?‡'
    If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.

  6. Disconnect the harness connector at the rear compartment lid latch.
  7. Ignition OFF, test for less than 5 ohm of resistance between the rear compartment lid latch ground circuit and ground.
  8. ?‡'
    If greater than the specifed range, test the ground circuit for an open/high resistance.

  9. Connect a test lamp between the trunk release relay control circuit and the coil side B+ circuit of the trunk relay.
  10. Command the trunk release solenoid ON and OFF with a scan tool.
  11. ?‡'
    If the test lamp remains ON all the time, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM.


    ?‡'
    If the test lamp remains OFF all the time, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.

  12. Connect the harness connector at the rear compartment lid latch.
  13. Connect a 3-amp fused jumper wire between the switch side B+ circuit of the trunk relay and the voltage control circuit of the lid latch. Verify that the lid latch activates.
  14. ?‡'
    If the lid latch does not activate, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the rear compartment lid latch.

  15. If all circuits test normal, test or replace the trunk relay.
Component Testing
Rear Compartment Lid Release Switch
  1. Ignition OFF, disconnect the harness connector at the rear compartment lid release switch.
  2. Test for infinite resistance between the trunk release switch supply voltage and ground terminals with the switch in the open position.
  3. ?‡'
    If less than infinite resistance, replace the rear compartment lid release switch.

  4. Test for less than 2 ohms of resistance between the trunk release switch supply voltage and ground terminals with the switch in the closed position.
  5. ?‡'
    If greater than 2 ohms, replace the rear compartment lid release switch.

  6. Test for infinite resistance between each terminal and the lid release switch housing/case.
?‡'
If less than infinite resistance, replace the rear compartment lid release switch.


Could be the relay , could be the switch , could be a problem with the BCM !

Apr 17, 2016 | 2007 Pontiac G6 GT Convertible

2 Answers

Locked out of trunk 2000 cadillac eldorado release button not working i removed lock on trunk still cant get in trunk


Pressing the rear compartment lid release switch provides an input signal to the instrument cluster. The instrument cluster sends a Class 2 serial data message to the body control module (PZM). The PZM grounds connector C6 of the rear compartment lid release solenoid through CKT 1344 (LT BLU) if the following conditions are present:
?€¢
The transaxle is in the PARK position.


?€¢
The valet lockout switch is closed.

Power is supplied through the following components to the now-grounded CKT 1344 (LT BLU):
?€¢
The RADIO/PHONE fuse


?€¢
CKT 40 (ORN)


?€¢
The coil of the rear compartment lid release relay
The relay coil energizes and closes the relay contacts.
Power is supplied from the CONVENIENCE fuse through the following components:
?€¢
CKT 2040 (ORN)


?€¢
The now-closed relay contacts


?€¢
CKT 56 (BLK/WHT)


?€¢
The rear compartment lid release solenoid
The solenoid energizes and the rear compartment lid latch assembly releases the rear compartment lid.

1

Did you perform the rear compartment lid release system check?
--
--
Go to Rear Compartment Lid Release System Check

2

  1. Place the transaxle in the PARK position.
  2. Turn the valet switch OFF.
  3. Connect the scan tool to the data link connector (DLC).
  4. Turn the valet lockout OFF.
  5. Press the rear compartment release switch.
Does the body control module (PZM) command the rear compartment lid release ON?
--
Go to Step 3
Go to Step 7

3

  1. Disconnect the rear compartment lid release relay.
  2. Connect a test lamp between terminal D4 and ground, and terminal D6 to ground.
Does the test lamp light at both terminals?
--
Go to Step 4
Go to Step 14
  1. Connect the test lamp between terminal D4 and terminal C6.
  2. Press the rear compartment lid release switch.
Does the test lamp light?
--
Go to Step 5
Go to Step 15

5

Connect a fused jumper between terminal D6 and terminal C4.
Does the rear compartment lid open?
--
Go to Step 6
Go to Step 16

6

Replace the rear compartment lid release relay.
Does the rear compartment lid release operate properly?
--
Go to Rear Compartment Lid Release System Check
Go to Step 7
If you don't know what your dealing with there is no way you can fix it . I suggest you take it to a qualified ASE certified repair shop or the dealer !

Aug 24, 2015 | Cadillac Cars & Trucks

1 Answer

Locate trunk latch for dodge charger 2014


I'm not sure what you're definition of trunk latch is so let's cover all the bases.

The trunk latch mechanism is inside the trunk well. When you open the truck lid, look down, right in the middle of the back lip that you would have to lift things over to put them in the trunk. The latch mechanism is right there in the middle. While you are looking in the location, look just to the left as you are standing behind the vehicle, and you will see a handle kind of like the pull handle on the end of the cord for your walk behind mower. That is a glow in the dark, emergency pull release for the trunk latch. If you or a child ever got caught in the trunk for some reason, you can pull that handle to manually operate the trunk latch to allow you to open the trunk lid.

On your key FOB, you have a trunk release button as well. If you push that button twice within 5 seconds, the trunk latch will release. You also have a trunk release button to the left of the steering wheel. It's a round button with a picture of a car with an open trunk lid. You can push that to open the trunk lid as well. To use the button inside the car, or the one on the key FOB, the car must have the transmission in park. It will not release the trunk latch if the vehicle is in gear.

Jan 19, 2015 | Dodge Cars & Trucks

1 Answer

How to find trunk latch light switch


The trunk using the key or using the inside trunk release -- located next to the driver's seat. Inspect the left edge of the trunk wall to find the trunk light lens.

Check the switch (located on the trunk lid) that contacts the pull-down mechanism for power. If there is no power, the wiring is "open" between the body and the trunk lid. Look for the problem in the wiring and repair the wires. If there is power, the switch is bad.
Autel MaxiDAS DS708 Multi language Diagnostic tool

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1 Answer

How can I open the trunk of a 1998 bmw 740i series


Hi, you have 3 options.
Use either:
1. The key
2. The key fob trunk release button
3. The trunk release button by the drivers side door (car must be unlocked, or the ignition on)

Oct 01, 2013 | 1997 BMW 5 Series

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Were is the fuel door release on the 1998 bmw 520 I also if you use the manual release in the trunk near the battery how do you reset that.


It should be sping loaded. You may have to spray a little WD-40 down the cable and at the latch inside the door assembly. The button may be either on the driver's door or near the seat. Let me know if you would like a copy of the shop manual for this car.

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1 Answer

89 BMW 325i Relay


The blower motor relay is located in behind the climate control center mounted to the ac box.The window relays are located in the power distribution center under the hood number k-5 and k-7.

Feb 11, 2010 | 1989 BMW 3 Series

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Hi Bigbadbobby,

There is no switch as such....There is a relay which controls the pump and you'll find that in the electrics bay where some of the computers are housed in the engine bay...

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