Skip the auto shop - Our mechanics make house calls

Q: Automatic Trunk open/close feature not working but button lights up. I soldiered broken wires back together - reset?

asked by on

I had to jump my car sometime back in June and when I did, the trunk (where the battery is located) stopped opening and closing from the open/close trunk button. The light was dim when I bought the car for the trunk close button and after that jump with a manual trunk open by my hands - the light no longer lit up. I took apart the trunk - located the hinges corner wire assembly and soldered the broken wire back together - now, the light illuminates again and so does the door lock button right next to the trunk close button. The door lock button works as should but the trunk will not close so I have been manually opening and closing the trunk. I've read that the button wont work because the CPU for the trunk doesn't know where the mechanical arm is located to tell it how far to close - can you reset?

My car has 94000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in. Most of the t...

Hello, thanks for writing in. Most of the time this is caused by a programming issue with the control module. It usually occurs if the module fails or if there is a loss of power. It can also occur if the batter is jumper improperly but most of the time you will have other issues also. If the battery was jumped correctly then I usually start by reprogramming the control module just to see if it will accept the programming. If it will not, then a new module will probably need to be installed and programmed to the vehicle. Not many places have the equipment to do this, so it is usually best left to the dealer where you got your car. I recommend having one of our certified automotive technicians from YourMechanic come to your home or office to inspect, diagnose, and repair the issue for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Having a hard time with the doors locking or not locking

Keyless remotes for the Volkswagen Jetta have been known to act erratically when the batteries are getting low or the remote is defective. First, try replacing the batteries in your remote and verify that the problem is fixed. If problem...

Q: My trunk won't shut due to break in attempt

The lock mechanism, and possibly the point of attachment, is probably distorted or otherwise broken. If it's a replaceable part(s), such as the striker plate, latch, and so forth, it is readily resolvable with either new or used OEM parts....

Q: Nissan 08 Altima won't start up when I press on the brake and push the start button.

Hi there. It sounds like the brake switch on the brake pedal is not working. There are two circuits on the brake switch, one for the brake lights and the other for the starter circuit. Some vehicles require the brakes...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...