Nissan Maxima QX

since 1993 of release

Repair and car operation



Nissan Maxima QX
+ Nissan Maxima brand Cars
+ Maintenance instruction
+ Settings and routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
- Engine electric equipment
   General information and precautionary measures
   Engine start from the auxiliary power supply
   Check of a condition and battery replacement
   Check of a condition and replacement of wires of the battery
   Ignition system - the general information and precautionary measures
   Check of functioning of system of ignition
   Check of a condition and replacement of coils of ignition
   Check of a condition and replacement of the power transistor (model 1993 and 1994 of вып.)
   Check, adjustment, removal and installation of the distributor of ignition (model 1993 and 1994 of вып.)
   Check and adjustment of installations of a corner of an advancing of ignition
   Charge system - the general information and precautionary measures
   Check of a condition of system of a charge
   Removal and generator installation
   Start system - the general information and precautionary measures
   Check of serviceability of functioning of a starter and start chain
   Removal and starter installation
   Replacement of the traction relay
+ Control systems of the engine
+ Transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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Check of functioning of system of ignition

 PERFORMANCE ORDER

 In view of that in system of ignition very high voltage is developed, service of its components should be made with extra care. This remark belongs not only to the main knots of electronic system of ignition, but also and to all accompanying components, including tips of candle wires, a tachometer and the other diagnostic equipment.

It is not necessary to attribute at once a cause of failure at start of the engine of malfunction of functioning of system of ignition. Before make the following checks:

a) Check a condition of tips of wires of the battery and reliability of their fastening on polar plugs;
b) Check a battery condition (see. The section Check of a condition and battery replacement), in case of need replace it obviously serviceable;
c) Visually estimate a condition of contact sockets of the distributor and the ignition coil (model till 1995 вып.);
d) Check a condition of fusible inserts in established in car salon the assembly block of safety locks (see. Head Onboard electric equipment). In case of identification of "breakdown" find out and eliminate the reason of emergence of an overload.


Models 1993 and 1994 of вып.

 PERFORMANCE ORDER

1. If the engine is turned, but not started, disconnect from candles of VV of a wire and connect them to the special calibrated tester of ignition (ask in shops of automobile accessories). Connect a contact clip of a measuring instrument to a bolt or a metal arm on the block of the power unit, then turn the engine, - between an electrode and the case of a tester well distinguishable spark of bright blue color (weak intensity of a spark should be considered as its absence) should slip.

2. If the iskroobrazovaniye occurs regularly, therefore, on the corresponding spark plug demanded VV tension moves. Having repeated check for the remained candle wires, make sure of serviceability of a condition of a cover and a distributor begunka. Condition definition actually spark plugs will be the following stage of check, - turn out them from a head of cylinders and address to a material of appropriate section of Head of Control and routine maintenance.
3. In the absence of an iskroobrazovaniye, or excessively weak its intensity should check a cover and a distributor begunok, and also connecting VV of a wire on existence of signs of oxidation and mechanical damages (see. Head of Control and routine maintenance). In case of identification of traces of moisture wipe components of system of ignition and repeat check.
4. If during survey of the distributor and electroconducting it is not possible to reveal any violations, disconnect the central VV a wire (from the coil) from a cover of the distributor of ignition and connect it to a universal measuring instrument (candle wires should be connected to spark plugs), then repeat check. If this time the iskroobrazovaniye takes place, replace a cover and a distributor begunok (the probability of damage of VV of electroconducting is not excluded also).
5. If the spark still is not present, remove VV a wire going from the coil to the distributor and check a condition of its contact plugs. By means of an ohmmeter check a wire on existence of signs of break. It will be reasonable to replace for the period of further check a wire obviously serviceable.

6. If replacement of a wire does not lead to restoration of serviceability of an iskroobrazovaniye, check serviceability of giving of tension on the coil from the ignition switch at key turn in the situation ON (do not start the engine). Connect a lamp sampler on 12 In to the negative plug of the battery, or reliably earthed element on the engine block. Disconnect from the coil electroconducting and check existence of tension of the battery on the plug of a white and green wire of the contact socket. If tension is absent, check an electroconducting condition on a chain site between the coil and the ignition switch.

 More detailed information on color marking of wires see in Head Onboard electric equipment.

7. If a food on the coil moves regularly, connect a lamp sampler on a light-emitting diode to the positive plug of the battery. Contact щуп lamps connect to the plug of a light green wire in the socket of electroconducting of the coil, then turn the engine a starter, - the lamp should blink at a provorachivaniye of the engine. This check allows to make sure of serviceability of receipt of a trigger signal (a grounding signal) from RSM and the power transistor. If the trigger signal takes place, therefore, RSM, the sensor of provision of a camshaft and the power transistor function regularly.

 In order to avoid risk of failure of RSM use during this check only a lamp sampler on a light-emitting diode!

8. At identification of signs of violation of giving of a trigger signal check a condition of resistive and capacitor assembly and the power transistor (see. Section Check of a condition and replacement of the power transistor (model 1993 and 1994 of вып.)).

 The socket of resistive and capacitor assembly is attached by an adhesive tape to an electroconducting plait directly to the left of the ignition distributor. If the transistor and the resistor as it should be, pass to check of the sensor of provision of a camshaft (see. Head of the Control system of the engine).

9. At serviceable receipt of supply voltage and a trigger signal lack of an iskroobrazovaniye can be explained by internal malfunctions in the ignition coil, - make measurement of its resistance of primary and secondary windings (see. Section Check of a condition and replacement of coils of ignition). In case of identification of signs of breaks, replace the coil.
10. If the executed checks confirm serviceability of functioning and a condition of all listed above components, it is necessary to drive away the car on car repair shop for carrying out diagnostics of RSM.


Models since 1995 вып.

 PERFORMANCE ORDER

1. If the engine is turned, but not started, it is necessary to make sure of serviceability of giving of tension of the battery on spark plugs. Remove the coil (see. The section Check of a condition and replacement of coils of ignition) also connect the calibrated tester of ignition to a candle tip (do not forget to connect electroconducting to the coil), earth a tester on mass of the power unit. Turn the engine, - between an electrode of a tester and its case the bright blue spark of good intensity should slip.

2. If the iskroobrazovaniye occurs regularly, therefore, on the corresponding spark plug demanded VV tension (operating in a similar manner, serially check each of candles) moves. Condition definition actually spark plugs will be the following stage of check, - turn out them from a head of cylinders and address to a material of appropriate section of Head of Control and routine maintenance.

3. In the absence of an iskroobrazovaniye, or excessively its weak intensity remove a candle tip and check a condition of its contact plugs. By means of an ohmmeter check a tip on existence of signs of break. Make sure of serviceability of giving of tension of the battery on the coil from the ignition switch (a key in the situation ON, the engine is not started). Connect a lamp sampler on 12 In to the negative plug of the battery, or mass of the engine and make sure of serviceability of a food on the No. plug of 1 socket of the coil (a red wire). If tension of the battery is absent, check an electroconducting condition between the coil, the ECCS relay and the ignition switch. Also check serviceability of grounding (see. Head Onboard electric equipment).

4. If tension of the battery on the coil takes place, connect a lamp sampler on a light-emitting diode to the positive plug of the battery and test the No. plug 3 sockets, - at an engine provorachivaniye the lamp should blink. This check allows to make sure of serviceability of receipt of a trigger signal (a grounding signal) from RSM and the power transistor. If the trigger signal takes place, therefore, RSM and sensors of provision of shaft function regularly.

 In order to avoid risk of failure of RSM use during this check only a lamp sampler on a light-emitting diode!

5. At identification of signs of violation of giving of a trigger signal check a condition of capacitor assembly.

 The socket of capacitor assembly is attached by an adhesive tape to an electroconducting plait directly on a transmission case. If the condenser as it should be, pass to check of sensors of provision of cranked and distributive shaft (see. Head of the Control system of the engine).

6. At serviceable receipt of supply voltage and a trigger signal lack of an iskroobrazovaniye can be explained by internal malfunctions in the ignition coil (see. Section Check of a condition and replacement of coils of ignition). In case of identification of signs of malfunction replace the coil.
7. If the executed checks confirm serviceability of functioning and a condition of all listed above components, it is necessary to drive away the car on car repair shop for carrying out diagnostics of RSM.