Power Door Locks Dont Work 2009 Malibu From Door Switch

Power door locks are the most important security element of your vehicle.

Power door locks dont work 2009 malibu from door switch.

The doors could only be unlocked manually. The contact owns a 2009 chevrolet malibu. Press the right hand button lock button the button with the padlock symbol or the dimpled button on the key fob 4 to 8 times. Even off or on.

When a door lock switch is placed in the lock position the reference voltage is switched to ground and the bcm senses 0 0 volts on the door lock unlock signal circuit. The contact stated that the rear interior power door locks failed to unlock when the key fob and power lock module were activated. Normally when the door locks malfunction in the manner you described it is caused by a failing bcm. The door locks in the malibu are controlled by the bcm body control module.

Each door lock switch receives ground at g300 which is also the ground for the door lock and unlock relays located in the bcm. The contact owns a 2009 chevrolet malibu. The contact stated that the rear interior power door locks failed to unlock when the key fob and power lock module were activated. The fix is to replace the bcm.

The body control module bcm supplies a voltage to each door lock switch. As a result power door locks that don t work are a little unnerving as they spell an increased security threat for your vehicle. Unlock the vehicle with the key in the drivers door lock do not open the door. When you move the switch to the lock position the switch grounds the supply voltage and the bcm sees a full voltage drop.

Here s a power door lock wiring diagram for a 2009 chevrolet malibu. The locks work just fine in the winter. The vehicle was not repaired and the manufacturer was not notified. I removed the door switch panel and tested the electrical and the switch was operating as normal.

My 2005 malibu maxx no doors open or close when i hit the drivers side lock. The approximate failure mileage was 90 000. They keep potential thieves and burglars out of your car and make it easy for you to lock and unlock your doors in a hurry. When car on i hear a little chirping noise.

The new bcm has to be programmed by the dealer after installation usually best to let them install the part for this reason. Press any button 10 ten times and the same with the other button. All locks work with key fob but if i don t lock door the horn beeps for 5 secs then the alarm goes off until i put the key back in. There is no smell of burning wire.

It interprets a full voltage drop as your request to lock the doors. Refit the battery or a new battery. Sometimes all the locks come on and off as i m during. The vehicle was not repaired and the manufacturer was not notified.

The approximate failure mileage was 90 000.