Nissan Maxima QX

since 1993 of release

Repair and car operation

The uniform lock - general information and check of serviceability of functioning

In a basis of functioning of system operation of individual activators of locks of each of car doors is necessary. The system consists of switches of management, door activators and connecting electroconducting. Problem diagnostics of system is limited to checks of a condition of contact connections of an electric chain and serviceability of operation of door activators. It is necessary to charge performance of deeper checks to specialists of car-care center.

Functioning of the uniform lock occurs at the expense of operation of the two-forked electromagnets located in the doorway of the car. The switch of management has two situation: Are LOCK and OPENLY. When squeezing the switch provides food giving on the relay of management with activators of door locks therefore there is the corresponding switching of the last. Depending on a starting position of the relay gives out on electromagnets of activators tension of the corresponding polarity.

On some models the system of the uniform lock is equipped with a remote control and is incorporated with anticreeping system. Functioning of such system is supervised by the special electronic module of management. If to reveal a system cause of failure during described below checks it is not possible, address for consultations to specialists of firm car repair shops of the Nissan company.

First of all always check a condition of protection of the contour provided by a combination of safety locks and breakers of a chain.

Popereklyuchayte management switches in both directions at the muffled engine. Listen to the clicks accompanying operation of electromagnets of door activators.

In the absence of clicks check serviceability of giving of tension on switches. If giving of a food is broken, check an electroconducting condition on a chain site between the corresponding switch and the assembly block of safety locks.

If a food moves regularly, check serviceability of a condition of the switch (conductivity distribution). Replace faulty components.

If the switch is serviceable, however clicks of the relay is not audible, check an electroconducting condition between the corresponding switch and the relay. Make necessary regenerative repair.

If the relay запитывается is serviceable, however does not give out a food on the door activator, check serviceability of grounding of its case. If grounding as it should be, replace the relay.

At refusal only one of activators remove the panel of an internal upholstery from the corresponding door of the car (see. Chapter the Body) also check serviceability of giving of tension on an executive electromagnet, switching the management switch. One of wires should запитываться in one of positions of the switch, the second - in other.

At serviceable giving of tension replace an electromagnet.

If violation of giving of a food takes place, check on break and short circuit electroconducting on a chain site between an electromagnet and the relay.

More often the wire breakage occurs on a site between a door and the body panel.