Trunk release broken, is this something that can be fixed at home or dealer only? What’s involved, it’s for a 2006

 

There are 4 different ways you can open the trunk.

The button on the dash, the button on the fob, the button above the rear license plate and the metal key in the rear keyhole..

Which one of these methods do not not work? Or is it that none of these work?

 

Also confirm your term....verts have trunks, coupes have hatches.

 

Ok, hatch it is! Seller says he thinks it’s the mechanism of the latch itself, nothing works but key! Is there a solenoid of some sort that works off the button in the car that I should hear?

 

The following thread has quite a bit of information and should help with pinpointing the problem. You may need to purchase parts, but the troubleshooting & installation can be done yourself.

https://www.corvetteforum.com/forums...tch-issue.html

Good luck.

GD

 

In the fuse box in the passenger compartment footwell, there is a fuse "TRUNK RELSE" that is for the trunk release.

Check this before you start buying parts for the latch.

 

the only thing that works is the key in back!

 

Trunk Release Inoperative (Coupe)

Circuit/System Description
The body control module (BCM) grounds the trunk release control signal circuit based on trunk release switch signals from either the interior rear compartment lid release switch or the exterior rear compartment lid release switch. The rear compartment lid pull down actuator is supplied battery voltage at all times via the TRUNK RELEASE fuse. When either the interior or exterior rear compartment lid release switch is pressed, the trunk release switch signal circuit is grounded. This input will request the BCM to momentarily ground the trunk release control signal circuit, which will open the rear compartment lid.

Circuit/System Testing

Trunk Release Inoperative from Interior Switch
Ignition OFF, disconnect the harness connector at the interior rear compartment lid release switch.
Test for less than 1.0 ohm of resistance between the ground circuit terminal A and ground.
⇒ If greater than the specified range, test the ground circuit for an open/high resistance.

Ignition ON, verify the scan tool trunk release switch parameter is INACTIVE.
⇒ If not the specified value, test the signal circuit terminal D for a short to ground. If the circuit tests normal, replace the BCM.

Install a 3-A fused jumper wire between the signal circuit terminal D and ground. Verify the scan tool Trunk Release 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 interior rear compartment lid release switch.

Trunk Release Inoperative from Exterior Switch
Ignition OFF, disconnect the harness connector at the exterior rear compartment lid release switch.
Test for less than 1.0 ohm of resistance between the ground circuit terminal A and ground.
⇒ If greater than the specified range, test the ground circuit for an open/high resistance.

Ignition ON, verify the scan tool Exterior Rear Compartment Lid Release Switch parameter is INACTIVE.
⇒ If not the specified value, test the signal circuit terminal B for a short to ground. If the circuit tests normal, replace the remote control door lock receiver (RCDLR).

Install a 3-A fused jumper wire between the signal circuit terminal B and ground. Verify the scan tool Exterior Rear Compartment Lid Release 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 remote control door lock receiver (RCDLR).

If all circuits test normal, test or replace the exterior rear compartment lid release switch.

Trunk Release Inoperative from Key Switch
Ignition OFF, disconnect the harness connector at the rear compartment lid pull down actuator.
Test for less than 1.0 ohm of resistance between the ground circuit terminal F and ground.
⇒ If greater than the specified range, test the ground circuit for an open/high resistance.

Ignition ON, verify the scan tool Trunk Key Cylinder Switch parameter is INACTIVE.
⇒ If not the specified value, test the signal circuit terminal E for a short to ground. If the circuit tests normal, replace the BCM.

Install a 3-A fused jumper wire between the signal circuit terminal E and ground. Verify the scan tool trunk key cylinder 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 pull down actuator.

Trunk Release Inoperative from All Switches
Ignition OFF, disconnect the harness connector at the rear compartment lid pull down actuator.
Test for less than 1.0 ohm of resistance between the ground circuit terminal F and ground.
⇒ If greater than the specified range, test the ground circuit for an open/high resistance.

Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal H 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 or replace the rear compartment lid pull down actuator.

Connect a test lamp between the control circuit terminal B and the B+ circuit terminal H.
Command the trunk release ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
⇒ If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM.

⇒ If the test lamp is always OFF, test the control 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 pull down actuator.

 

It's a common issue with these and I had the same problem with my 09. Had to replace the latching system which I bought off of a company on Ebay. If I remember they are in Cleveland and it was around $60 and used. New, if you can find one are in the mid $300 range. It's a easy job for the do it yourselfer. I'm sure it's one of the solenoids in the lock was bad but you can't take it apart to replace them even if you could find the solenoid. There is a good You tube on how to replace it just do a search. .

 

Ok guys, enough of this bickering and name calling. I didn’t join this forum to hear this gunk. I came here to get questions answered and maybe even answer a few if I can. I don’t know what the history is between you two, I don’t care or want to know. All I know is that I want to gain knowledge about Corvettes, not name calling or sarcasm. If this is nothing but good fun between friends, or not, leave it at home. ☮️

 

Wow, this can be one heck of a trouble shoot from the sound of it. Just remember one thing....a LOT of electrical problems are grounds. Be very careful to be sure you have a good clean ground circuit. Seems to me that if you're getting a click sound with each method you're getting power and the ground should be good. Then it has to be mechanical within the release mechanism and as others have said it's probably nothing you can repair other than to replace the entire mechanism, unless you're lucky enough that it's just alignment. Good luck.

 

Oh man, I tried to read all of that above and gave up.

I have a C6Z06 2008 and I took the rear trunk release button out and cleaned it, I think I used silicone grease once cleaned, and put it back in years ago. It went from dead to perfect and works perfect now. I honestly can't remember if I could use the FOB and it worked fine or not, I think it was just the rear button didn't work, but somehow I knew it was the button on the rear of the car that was bad and it worked thereafter. good luck. Start with fuse, then do mechanical, then do electrical troubleshoot.

 

I hope the OP didn't miss the part where it could just be the fuse. "Hatch" or "Trunk" doesn't matter.

Cleaning the pushbutton switch in the back is easy and also a good thing to do.

 

Hello Team,

Anyone have the wiring diagram for a 2010 C6 MT Base for the rear hatch release circuit?

My rear button (above license plate) doesnt work. it's beeen replaced and when pushed I hear a relay somewhere clicking, but it does not open.

The release switch in the dash works fine.

So whatever relay I hear clicking may be bad, but regardless, I'm a EE so if I had the schematic, I could corner this easy.

Thanks!

 

Sent you a PM