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The specific fuse responsible for controlling the car door locks in a Nissan Versa 2018 can vary depending on the vehicle's configuration and model. In the Nissan Versa, the fuse box is typically located in the engine compartment or under the dashboard. The fuse box cover or owner's manual should have a diagram indicating the fuse positions and their corresponding functions. Look for a fuse labeled "Door Locks," "Power Locks," or similar. If you are unable to locate the specific fuse, consulting the vehicle's owner's manual or seeking assistance from a Nissan dealership or automotive professional is advisable.
Did you hook up a professional grade scan tool an check BCM codes ,view live input data for power locks .
Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch--Provides a switched voltage signal to the body control module (BCM) for both lock and unlock switch activations.
• Front passenger door lock switch--Provides a switched voltage signal to the BCM for both lock and unlock switch activations.
• Door lock relay--Located in the instrument panel (I/P) fuse block and controls the locking of all doors and liftgate.
• Door unlock relay--Located in the I/P fuse block and controls the unlocking of the passenger doors and liftgate.
• Driver door unlock relay--Located in the I/P fuse block and controls the unlocking of the driver door.
• BCM--Class 2 module which requires programming when replaced
• Reversible door lock actuators in each of the doors
• LOCK/MIRROR 10 A fuse--Located in the I/P fuse block, supplies power for the door lock switches and relays.
• DR LCK 20 A fuse--Located in the I/P fuse block, supplies power to the relays.
DTC Descriptors
DTC B3125 00: Left Front/Driver Door Only Unlock Circuit
DTC B3130 00: All Door Unlock Circuit
DTC B3135 00: All Door Lock Circuit
The relays in the I/P fuse box are not listed because you can't change them so why show then . They are PCB - relays Printed circuit board relays , soldered directly to the circuit board inside the fuse box.
You best bet ,take it to a qualified repair shop. I would say the vehicle has a lose connection somewhere . Ground ,
My bet is that it is a relay or the body control module. ??? Then you would be wrong Take it to a professional before you start replacing parts it doesn't need .
Power windows don't use fuse's , has circuit breakers
• PWR WDO CB 25A (fuse block) (System power for left and right windows 2-door vehicles. System power for LF and LR windows 4-door vehicles)
• PWR WDO CB 25A (IP wiring harness junction block) (System power for RF and RR windows 4-door vehicles)
Door Lock System Components
The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• The door lock relay
• The door unlock relay
• The liftgate lock relay--utility vehicles with liftgate only
• The reversible door lock actuators in each of the doors and liftgate
• LOCKS 20A fuse (rear lock/unlock relay supply voltage)
• ECC 10A fuse (liftgate lock relay supply voltage)
Could be any number of thing's causing this problem . Knowing what all is involved in the locking an unlocking of the doors is key . Computer controlled by the BCM - body control module , relays ,wiring ,switches etc... Bad input from switch or grounding wire to the BCM could make the BCM think door unlock has been requested .
Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch--Provides a switched voltage signal to the body control module (BCM) for both lock and unlock switch activations.
• Front passenger door lock switch--Provides a switched voltage signal to the BCM for both lock and unlock switch activations.
• Door lock relay--Located in the instrument panel (I/P) fuse block and controls the locking of all doors and liftgate.
• Door unlock relay--Located in the I/P fuse block and controls the unlocking of the passenger doors and liftgate.
• Driver door unlock relay--Located in the I/P fuse block and controls the unlocking of the driver door.
• BCM--Class 2 module which requires programming when replaced
• Reversible door lock actuators in each of the doors
• LOCK/MIRROR 10 A fuse--Located in the I/P fuse block, supplies power for the door lock switches and relays.
• DR LCK 20 A fuse--Located in the I/P fuse block, supplies power to the relays
Door Lock System Controls
The power door lock system can be controlled by any of the following:
• Power door lock switch activation
• Keyless entry lock or unlock command
• Delayed locking command
• Automatic door lock command
• Lockout prevention command
• An air bag deployment
Door Lock and Unlock Operation
When a door lock switch is activated in the lock or unlock position the body control module (BCM) will receive a voltage signal on either the door lock switch lock or unlock signal circuits.
The BCM, upon receipt of a lock switch lock or unlock signal, will switch the appropriate lock relay control circuit(s) to battery positive voltage. This will energize the appropriate lock or unlock relay(s). The relay will supply voltage to the door lock actuator lock or unlock control circuits to one side of the lock actuator. Since the opposing side of the lock actuators are connected to ground through the other lock actuator control circuit and the normally closed contacts of the lock or unlock relay, the doors and liftgate will then lock or unlock appropriately.
Three relays are used to operate the lock. 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.
Automatic Door Lock Operation
This body control module (BCM) controlled feature can be personalized to driver preference.
The BCM will automatically lock the vehicle doors if the following conditions exist:
• All vehicles doors are closed.
• The ignition is in the ON position.
• The vehicle is shifted out of PARK.
The BCM will then unlock the doors when the ignition is placed in the OFF position.
The first thing ,hook up a professional type scan tool an check for DTC'S in the BCM
DTC Descriptors
DTC B3140 00: Driver Unlock Switch Circuit
DTC B3145 00: Passenger Unlock Switch Circuit
DTC B3150 00: Driver Lock Switch Circuit
DTC B3155 00: Right Front Lock Switch Circuit
Check the wiring to the rear hatch. The cables break and cause a variety fo problems like yours. You will have to take the plastic cover off and expose the cables.
There are two fuses associated with the door locks system. The first is the Cigarette Lighter Fuse (Fuse 13 - 20A). This fuse provides power to the switches to activate the lock/motor relays. The second fuse is the PWR ACCY Circuit Breaker (30A). This provides the power thru the relay contacts to the lock solenoids/door motor. Both of the are in the Instrument Panel (IP) Fuse block.
The locks don't work from any switch or just the driver's door switch ? The door locks are controlled by the BCM - body control module , that's were the clicking you hear is coming from there are no fuse's that are marked for the locks , fuse's for the BCM .
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
• BCM -- Class 2 module which requires programming when replaced
• Reversible door lock actuators in each of the doors
• BCM PWR 15A fuse -- Located in the BCM fuse panel, supplies power for the door lock system
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 15k ohm resister 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.
Body Control Module (BCM)
Lower center of the I/P, just below the HVAC control assembly
fuse 56 and 57 control central locking,the issue is caused by surges typically in the front door lock actuators, normally at a dealer they would replace fuse 56 and 57 with a 20a mini fuse and if still occuring repl the door lock(s) that dont work or typically both front, first replace fuse 56 and 57 with 20a fuses as were too small from factory and than operate ten to 15 times, if it doesnt work at first dont panic,let the car go to sleep which takes about 16 min and than try again this problem has nothing to do with the key fob or the lock unlock button inside,also the fuses are located behind the glove box just rere the access panel and they are found at lower left section
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