Battery compartment latch broken

Do you know how the system works ? Do you know what a wiring diagram is an how to test electrical circuits with a DVOM - digital volt ohmmeter ? This is how to find the problem .
Circuit/System Description
When the ignition is ON, the body control module (BCM) supplies a signal to the rear compartment lid release switch through the trunk release switch signal circuit. When the rear compartment lid release switch is pressed, the voltage within the signal circuit is pulled low and in response, the BCM applies ground to the trunk release relay control circuit, which energizes the coil side of the trunk relay. The switch side of the trunk relay then closes, supplying battery positive voltage through the relay and the latch motor voltage control circuit to the rear compartment lid latch. The rear compartment lid latch, then releases the rear compartment lid so that it may be manually raised to an open position.
Circuit/System Testing
Ignition OFF, disconnect the harness connector at the rear compartment lid release switch.
Test for less than 1 ohm between the ground circuit terminal B and ground.
? If greater than the specified range, test the ground circuit for an open/high resistance.
Ignition ON, verify the scan tool Trunk Switch parameter is Inactive.
? If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM.
Install a 3A fused jumper wire between the signal circuit terminal A and the ground circuit terminal B. Verify the scan tool Trunk Switch parameter is Active.
? If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
If all circuits test normal, test or replace the rear compartment lid release switch.
Component Testing
Ignition OFF, disconnect the harness connector at the rear compartment lid release switch.
Test for infinite resistance between the signal terminal A and the ground terminal B with the switch in the open position.
? If not the specified value, replace the rear compartment lid release switch
Test for less than 2 ohms of between the signal terminal A and the ground terminal B with the switch in the closed position.
? If greater than the specified range, replace the rear compartment lid release switch.
Test for infinite resistance between each terminal and the lid release switch housing/case.
? If not the specified value, replace the rear compartment lid release switch.
hooking up a factory or some other type professional scan tool an checking for DTC'S - diagnostic trouble codes should also be done , could make diagnoses easier .
DTC B2730 (Sedan)

Hi Jeff,
I was going to say, check fuse/ jump the load side of relay Good post.

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.
?‡'
If the resistance is not within the specified range, replace the trunk relay.

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



?€¢
30 and 87



?€¢
30 and 85



?€¢
85 and 87



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


4. 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.
?‡'
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.

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

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

6. Connect a test lamp between the trunk release relay control circuit and the coil side B+ circuit of the trunk relay.
7. Command the trunk release solenoid ON and OFF with a scan tool.
?‡'
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.


8. Connect the harness connector at the rear compartment lid latch.
9. 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.
?‡'
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.

10. 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.
?‡'
If less than infinite resistance, replace the rear compartment lid release switch.

3. 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.
?‡'
If greater than 2 ohms, replace the rear compartment lid release switch.

4. 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 !

if you look down into the latch with a flash light you should see the hood release cable. it will be attached to a lever. if the lever is stuck all the way to the drivers side than the latch is sticking. Spray some penetrating lube into the latch and then use a thin blade screwdriver to help push it the other way. Continue to spray lubricant, pull the hood release, and move the lever with a screwdriver until it moves freely.

I kjnow this video is a ford but the mechanism is the same



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

If you push the battery in and try to release? Try a little silicon spray, mind not to over spray.If you hold open the release switch and manually pry out the battery with your finger nails?

SOUND LIKE YOUR HOOD LATCH IS STUCK IN THE RELEASE POSITION. YOU CAN DO TWO THINGS. REPLACE YOUR HOOD LATCH OR PUSH THE LATCH BACK INTO POSITION MANUALLY EVERYTIME YOU OPEN YOUR HOOD. IT'S EASY. FIRST CHECK YOUR HOOD RELEASE LEVER (DRIVER SIDE KICK PANEL)AND MAKE SURE IT'S MOVING FREELY. IF LEVER IS OK,GO TO YOUR HOOD LATCH. LOOK TO THE RIGHT OF THE LATCH (LOOK DOWN FROM THE TOP VIEW)AND YOU'LL SEE A SMALL METAL BAR WITH A SPRING PULLING DOWN ON IT(MIGHT NEED FLASH LIGHT TO SEE BAR AND SPRING). TAKE A FLATHEAD SCREWDRIVER AND PUSH DOWN ON THE METAL BAR WHERE SPRING CONNECT. THE BAR SURE MOVE ABOUT 1/4 INCH DOWN. CLOSE YOU HOOD AND YOU'RE DONE. YOU JUST HAVE TO PUSH THE BAR DOWN EVERYTIME YOU OPEN IT.

is the latched stuck in the open or closed position? if it is in the open position you may be able to wedge a pick or small flathead and gently ease it out. if it is in the locked position attempt to use one of these same tools to move the latch to the open position. hope this was helpful.

The latch is stuck in the open position. I always found white lithium grease worked best on those latches but any good lubricant will work. Try moving the latch manually with a screwdriver. After applying the lubricant move the latch a few times. You should see the tension return to the release, if it doesn't you have a broken release cable.

hello / if you move the glove box door from side to side when pulling on it , it will open one side first and then the other side . it has 2 hooks one left and one right / hard to explain ,/

My battery latch got stuck in the open position after replacing the battery on HP's DV 6300 series. The battery was thus stuck. I used the 'screwdriver' technique but with a rounded end kitchen knife not an actual screwdriver to remove the battery. It is important to push the knife down a little into the groove at the outer long edge of the battery and pry that outer edge up. AFTER DOING THIS THEN GOING TO REPLACE THE BATTERY I REALIZED THE LATCH PROBLEM OCCURRED BECAUSE I HAD PUSHED THE BATTERY LATCH TO THE OPEN POSITION TO REPLACE THE BATTERY. THIS IS WHAT JAMS IT. TO REPLACE THE BATTERY 'DON'T TOUCH THE LATCH AT ALL'. LEAVE THE LATCH IN THE CLOSED POSITION AND REPLACING THE BATTERY WILL SET THE LATCH IN THE CORRECT CLOSED POSITION, READY TO BE SLID TO OPEN POSITION ONLY TO DO THE ACTUAL BATTERY REMOVAL.