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2007 Saturn ion 3 door locks fuse location

Power door locks won't work

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Jeff Armer

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  • Saturn Master
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Power door lock's are controlled by the BCM - body control module . Are you familiar with automotive electronic's ?
Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch--Uses a single signal wire for both lock and unlock switch activations
• Front passenger door lock switch--Uses a single signal wire for both lock and unlock switch activations
• Body control module (BCM)--Class 2 module which requires programming when replaced
• Reversible door lock actuators in each of the doors
• Body control module PWR 15A fuse--Located in the body control module fuse panel, supplies power for the door lock system

Door Lock and Unlock Operation
The BCM PWR fuse supplies battery positive voltage to the BCM for the door lock system.
The BCM supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position, the reference voltage is taken directly to ground and the BCM senses 0.0 volts on the signal circuit. If a door lock switch is placed in the unlock position, the reference voltage is taken to ground through a 1.5K ohm resistor that is internal to the door lock switches and senses approximately 2.9 volts on the signal circuit. This is how the BCM determines what portion of the door lock switch was activated.
The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
Vehicles without keyless entry have two internal drivers in the BCM to control the door lock actuators. All door lock and all door unlock. Vehicles equipped with keyless entry have three internal drivers in the BCM. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter.

Posted on Nov 26, 2017

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5 Related Answers

Anonymous

  • 1 Answer

SOURCE: location of fuse for trunk release

look in the owner's manual - the fuses are by the drivers pedals in the console. there's a chart in the manual of which fuses operate what; then when you take the fuse panel cover off it shows which fuse is where.

Posted on May 02, 2009

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Anonymous

  • 7 Answers

SOURCE: 2003 saturn ion-release does not work for trunk release

If only the trunk release is not working, did you check to see if the little lever arm switch on the trunk lid at the latch assembly is switched to enable the release? Mine came switched to the 'Off' position when I bought it and it took me a few days to figure that one out.

Posted on Jun 26, 2009

Anonymous

  • 19 Answers

SOURCE: location of body control module on 2007 saturn ion

Bcm and fuse box are one piece, located in front of center console, just under the heater controls.  Remove side panels from console on both sides.

Posted on Aug 23, 2009

co7196

Ned C Cook

  • 3433 Answers

SOURCE: 2006 saturn ion door locks and trunk pop wont work....

The remote won't ework because the problem is in the vehicle. Just for test purposes and possible remedy. Remove and clean the negative battery cable. Ensure a clean , tight connection. Then find the body ground. Yhis ground is locted usually at the top rear of the engine. .I's a snall stainless steel strap bolted to the engine and fire wall, This must olsobe clean with a good contack. Might as well clean the + cable and connection on the battery while you are there. Good luck and keep me posted olease. Good Luck, Ned_

Posted on Oct 03, 2009

Testimonial: "Thank you for your prompt response I will try that first thing in the morning and let you know!"

Anonymous

  • 4 Answers

SOURCE: 04 saturn ion window and power lock problems

check the wires going from the driver door into the kick panel there should be a rubber thing around the wires and cut it off and the wires usualy break and loose connection

Posted on Aug 08, 2010

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