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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Nissan Almera (from 1995 to 1999, the year of issue)
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 Nissan Almera
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Nissan
Almera
General Information
General requirements for car repair
Operation and maintenance of car
Petrol engines
Removal and installation of the power unit
Disassembly and assembly of the engine
Cylinder block
The connecting rod-piston group
The crankshaft and flywheel
Valve gear
The cylinder head and engine GA14DE GA16DE
The cylinder head of the engine SR20DE
Cooling system
Lubrication system
Exhaust
Power system
Integrated engine management system (KSUD)
Fuel injection control subsystem
Subsystem control ignition timing
Preliminary checks
Check the electrical parameters of the engine management system
Self-diagnosis KSUD
Check and adjust idle speed and CO content in the exhaust gases
Check and installation of the initial ignition timing
Checking the technical condition of the knock sensor (on the motor SR20DE)
Diesel engines
Transmission
Chassis
A steering
The brake system
Electrical
Body
Applications
Scheme of electrical equipment
 


Hit Counter by Digits


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Subsystem control ignition timing



Ignition system contactless Battery transistor with a mechanical valve. The structure of the subsystem includes a sensor-distributor of the brand Hitachi, including a built-in power plug and optoelectronic camshaft position sensor and the engine speed. Ignition unit, in turn, consists of the ignition coil, a capacitor and a switch. The harness of ignition unit integrated control resistor. The ignition distributor is rotated by the exhaust camshaft.
Initial ignition timing (when disconnected the throttle position sensor), hail:
Engine GA14DE GA16DE and 10 ?� 2
Engine SR20DE 15 ?� 2
Resistance to high voltage at 25 ?� C, ohm:
1st cylinder 11.0
2-cylinder 10.0
3rd cylinder 8.0
4-cylinder 6.5
The controller continuously receives supply voltage via terminal "46" protected fuse number 41 (7.5 A) located in the mounting block of the engine compartment. When the ignition switch the battery voltage is supplied to output "44" connector controller and four injectors and ignition distributor (output "7" 2-pin connector gray). This conclusion is "4" of the controller is connected to "weight". Closes relay control system power. After activation of the relay power supply voltage is supplied to the conclusions of the "38", "47" and "109" of the controller, then the ignition distributor

Accommodation units KSUD GA14DE and GA16DE engines in the engine compartment
Fig. 2.89. Accommodation units KSUD GA14DE and GA16DE engines in the engine compartment: 1 - the gauge of pressure in the power steering system; 2 - the throttle body; 3 - Air mass meter; 4 - throttle position sensor; 5 - a regulator of idling; 6 - coolant temperature sensor; 7 - the fuel injector; 8 - control fast idle speed; 9 - thermostat higher idle speed the engine is cold; 10 - solenoid valve EGR system and the fuel vapor recovery; 11 - the valve differential pressure; 12 - EGR valve; 13 - the gauge of speed of movement; 14 - the fuel pressure regulator; 15 - the gauge-distributor; 16 - the gauge of pressure of the refrigerant compressor; 17 - the gauge of position of the shift lever; 18 - the gauge of the oxygen content in the exhaust gases; 19 - the relay of the fan starts (1st speed with automatic transmission); 20 - space for the relay of inclusion of the fan (2nd speed only if an automatic transmission); 21 - the relay of the air conditioner


(output "5" 6-pin gray connector) for measuring the mass air flow (the output of "3") through fuse number 41 (7.5 A). At the same time switching on the ignition voltage is applied to the following devices: gauge the oxygen content in the exhaust gases, the power supply circuit is protected by a fuse number 16 (10 A) installed in the mounting block of the passenger compartment; control idling; EGR solenoid valve and the canister bleed through fuse number 25 (10 A) installed in the mounting block interior. When connected to the "masses" O "106" controller authorizes the operation of the power relay of the fuel pump, the circuit is protected by a fuse number 17 (15 A) located in the mounting block interior. If within about 5 seconds (delay time of receipt of the signal from the camshaft position sensor and engine speed) does not attempt to start the car, turn on the controller opens the circuit on "weight" of its output "106", thereby turning off the power of the fuel pump. The power circuit of the fuel pump is restored only after the receipt of the controller signal from said sensor. If the engine stops when the ignition switch long time delay of 1 second. The signal of the intention to let the engine is supplied to the output of "34" on the circuit protected by a fuse number 26 (7.5 A) located in the mounting block of the car. For vehicles with air conditioning output of "11" of the controller is connected to the "masses" through the chain of protected fuse number 6 (7.5 A) on the idle engine. When voltage is applied to switch the air conditioner on the fast idle speed control circuit for protected fuse number 30 (7.5 A). Checks are carried out on the instructions tab. 2.10-2.14 and Fig. 2.89 and 2.90.

Location units KSUD SR20DE engine in the engine compartment
Fig. 2.90. Location units KSUD SR20DE engine in the engine compartment: 1 - the gauge of pressure in the power steering system; 2 - knock sensor; 3 - control of idling and fast idle speed; 4 - the gauge of the selector lever position; 5 - throttle position sensor; 6 - the fuel pressure regulator; 7 - the gauge of speed of movement; 8 - the canister bleed solenoid valve (fuel vapor recovery); 9 - the fuel filter;
10 - Air mass meter; 11 - the ignition (ignition coil, switch, sensor-valve, the camshaft position sensor and the engine speed of the engine; 12 - a control resistor; 13 - the gauge of the oxygen content in the exhaust gases (oxygen sensor); 14 - the fuel injectors; 15 - coolant temperature sensor


Table 2.10 Pin assignment connector controller
Output number
Appointment
1
Ignition Control unit
2
The signal at the tachometer
3
Signal check the ignition module
4
Office supply relay
6
"Mass"
7
Information on the diagnostic connector
9
Relay control the fan starts (1st gear) (for vehicles with automatic transmission)
10
Relay control the fan starts up (2nd gear) (for vehicles with automatic transmission)
eleven
Relay control air conditioner compressor clutch
13
"Mass"
14
Information on the diagnostic connector
15
Information on the diagnostic connector
16
The signal from the air flow meter
18
A signal from the coolant temperature sensor
19
The signal from the throttle position sensor
20
The signal from the throttle position sensor
21
"Weight" air flow meter, coolant temperature, throttle position sensor
23
Information on the diagnostic connector
24
Warning light in the instrument cluster
25
Information from the immobilizer
26
Information from the immobilizer
27
The signal from the knock sensor
29
"Weight" air flow meter, coolant temperature, throttle position sensor
31
The signal from the speed sensor
32
Information about the vehicle speed
33
Information on the inclusion of the rear window defogger
34
"+" The starter (key ignition switch ?�ST?�)
35
The signal from the position sensor gear selector lever or selector lever
37
Power Throttle Position Sensor
38
"+" After turning the ignition switch
39
"Mass"
40
The signal of the camshaft sensor and the engine speed
41
Information about turning on / off the air conditioner through the refrigerant pressure sensor
43
Information from the pressure sensor in the power-assisted steering
44
"+" After turning the ignition switch
45
Information on the inclusion of cabin ventilation
46
"+" Battery
47
"+" After the ignition
48
"Mass"
101
Management 1st-cylinder injector
102
"Mass" of the heating element lambda probe
103
Injector control third cylinder
105
Solenoid valve EGR system and purging absorber
106
Control of the fuel pump relays
107
"Mass"
108
"Mass"
109
"+" After the ignition
110
An injector 2-cylinder
112
An injector 4-cylinder
113
Management control of idling
116
"Mass"

Table 2.11 Checking supply chain COURT
To connect the control panel to the conclusions
Test conditions
The test result, normative values
Problem
Conclusion "46" connector controller and the "mass"
The ignition switch is turned off
U = U akk.bat.
Broken wire between the battery and the terminal "46" of the controller connector. Blown fuse number 41, or loose connections in the mounting block of the engine compartment
Conclusions "1", "3" power relay connector and "mass"
Also
Also
Broken wire between the battery and the power relay sockets. Blown fuse number 41, or loose connections in the mounting block of the engine compartment
Conclusion "2" power relay connector and "mass"
"
"
Faulty power relay
Conclusion "4" connector controller and the "mass"
"
"
Broken wire between terminal "4" connector controller and the terminal "2" power relay
The output "1" terminal of the ignition switch and the "mass"
"
"
Broken wire between the battery and the terminal "1" of the ignition switch connector. Blown fuse ?�i?� and poor connections in the mounting block of the engine compartment
Conclusion "3" connector relays electromagnetic compressor clutch (right relay box in the engine compartment) and "mass"
"
"
Broken wire between the battery and the terminal "3" connector relay. Blown fuse or fuse number 30 "d" or poor connections in the mounting block of the engine compartment
Conclusions "2" and "3" terminal of the ignition switch and the "mass"
Put the ignition switch key to the "ACC", then to ?�ON?� position
"
Faulty ignition switch
Conclusion "44" connector controller and the "mass"
Also
"
Broken wire between terminal "44" of the controller connector and terminal "3" of the ignition switch
Conclusion "5" power relay connector and "mass"
"
"
Power Relay
Conclusions "38", "47", "109" connector of the controller, the output "5" plug supply relay and the "mass"
"
"
Wire break between terminals "38", "47", "109" terminal controller
Conclusion "5" 6-pin connector Vågå-gray distributor of ignition and "mass"
"
"
Broken wire between terminal "5" ignition distributor connector and terminal "5" plug supply relay
Conclusion "7" 2-pin gray connector Vågå
"
"
Broken wire between terminal "7" ignition distributor connector and terminal "3" of the ignition switch connector
Conclusion "3" terminal air mass meter and the "mass"
"
"
Broken wire between terminal "3" terminal air mass meter and terminal "5" plug supply relay
Conclusion "2" connector of each injector, and "mass"
"
"
Broken wire between terminal "2" injector connector and terminal "3" of the ignition switch connector
The output "1" regulator connector idling and "mass"
"
"
Broken wire between terminal "1" idling regulator connector and terminal "3" switch connector plug Blown fuse number 25 or unreliable connections in the assembly block car interior
Conclusion "2" EGR solenoid valve connector and "mass"
"
"
Broken wire between terminal "2" EGR solenoid valve connector and the ignition switch. Blown fuse number 25 or unreliable connections in the assembly block car interior
Conclusions "1", "3" connectors enable the fuel pump relay and the "mass"
Put the ignition switch key to the "ACC", then to ?�ON?� position
U = U acc. Baht.
Wire break between terminals "1", "3" connectors enable the fuel pump relay and the ignition switch. Blown fuse number 17 or unreliable connections in the assembly block car interior
Conclusion "2" connector of the fuel pump relays
Also
Also
The relay of inclusion of the fuel pump
Output "106" connector of the controller and the "mass"
"
"
Broken wire between terminal "106" connector of the controller and the terminal "2" connector of the fuel pump relays
Conclusion "3" sensor connector oxygen content in the exhaust gases and the "mass"
"
"
Broken wire between terminal "3" sensor connector and the ignition switch. Blown fuse number 16 or unreliable connections in the assembly block car interior
The output "1" connector relays electromagnetic compressor clutch (right relay box in the engine compartment) and "mass"
"
"
Broken wire between terminal "1" connector relays electromagnetic compressor clutch and the ignition switch. Blown fuse number 6 or poor connections in the assembly block car interior
Conclusion "3" connector relays electromagnetic compressor clutch, and "mass"
"
"
The relay of inclusion of electromagnetic compressor clutch
Conclusion "11" connector controller and the "mass"
"
"
Broken wire between terminal "11" of the controller and the terminal connector "2" connector relays electromagnetic compressor clutch
Conclusion "5" connectors enable the fuel pump relay and the "mass"
Verification is carried out during a 5-second delay of the fuel pump
"
The relay of inclusion of the fuel pump
The output "1" connector brown fuel pump and "mass"
?�
?�
Broken wire between terminal "1" of the fuel pump connector and terminal "5" connector of the fuel pump relays
Output "106" connector of the controller and the "mass"
"
U = 0
Faulty controller
Conclusion "6" and the ignition switch connector "mass"
Put the key in the ignition switch position ?�ST?�
U = U acc. Baht.
Faulty ignition switch
Conclusion "34" terminal controller
Also
Also
Broken wire between terminal "34" of the controller connector and terminal "6" of the ignition switch connector. Blown fuse number 36 or unreliable connections in the assembly block car interior
Conclusion "5" connector relays electromagnetic compressor clutch (right relay box in the engine compartment) and "mass"
The engine is idling. Air conditioning is included
"
Faulty relays electromagnetic compressor clutch
The output "1" regulator connector fast idle speed and "mass"
Also
"
Broken wire between terminal "1" regulator connector fast idle speed and terminal "5" connector relays electromagnetic compressor clutch
Conclusion "11" connector controller and the "mass"
"
U = 0
Faulty controller

Table 2.12 Check the resistance of components and assemblies COURT
Check item system
Conclusions or connection point
Standard, value test result
Problem
Camshaft position sensor and the engine speed
Conclusion "4" connector (gray) and the distributor of ignition controller connector terminals "40" and "31" (on engines and GA14DE GA16DE) or outputs "30" and "22" (the engine SR20DE)
The device should show an open circuit
Sensor fault. Broken wire between terminal "4" connector distributor of ignition and these conclusions controller. Violation of shielding wire
Conclusion "6" connector (gray) the distributor of ignition and "mass"
R = 0.5 ohms
Broken wire between terminal "6" connector distributor of ignition and a point of connection of "weight"
Mass Air Flow Meter
Conclusion "3" terminal air mass meter and conclusions "21", "29" terminal controller
The device should show an open circuit
Air mass meter. Broken wire between terminal "2" terminal air mass meter and the terminal "21", "29" terminal controller
The output "1" connector air mass meter and output "16" terminal controller
R = <0,5 Ohm
Broken wire between terminal "1" connector air mass meter and the terminal "16" of the controller connector. Faulty shielding wire
Conclusion "2" terminal air mass meter and conclusions "21", "29" terminal controller
The device should show an open circuit
Broken wire between terminal "2" terminal air mass meter and the terminal "21", "29" terminal controller
Mass Air Flow Meter
The output "1" air mass meter and the "mass"
The device should show an open circuit
Broken wire between terminal "1" and the meter socket connection point "weight"
Coolant temperature
Conclusions "18" and "21", "29" terminal controller
Resistance value: 7,0-11,4 kW at -10 ?� C; 2,1-2,9 kW at 20 ?� C; 0.6-1.0 ohms at 50 ?� C; 0,23-0,26 ohms at 90 ?� C; 0.15 ohms at 110 ?� C
Sensor fault. Broken wire between terminal "2" sensor connector and terminal "18" of the controller connector. Broken wire between terminal "1" sensor connector and pin "21", "29" terminal controller
Distributor
Conclusion "8" connector (gray) the distributor of ignition and output "3" terminal controller
R = <2,2 ohms
Symptom control resistor. Broken wire between terminal "8" ignition distributor connector and terminal "1" reference resistor. Broken wire between terminal "2" terminal control resistor and the terminal "3" terminal controller
The output "1" connector (gray), the distributor of ignition and output "1" terminal controller
R = <0,5 Ohm
Broken wire between terminal "1" ignition distributor connector and terminal "1" terminal controller
Conclusion "2" 9 connector (gray), the distributor of ignition and "mass"
The device should show an open circuit
Broken wire between terminal "2" connector distributor of ignition and a point of connection of "weight"
Conclusion "2" gray connector and output "8" 2-pin connector Vågå gray ignition distributor
The resistance should vary from 0
Faulty Switch
The ignition coil (primary coil)
Conclusions "7" and "8" 2-pin connector kovogo gray ignition distributor
R = 1,0 Ohm (0.5-1.0 ohms on engine SR20DE)
Faulty ignition coil
Ignition coil (secondary coil)
Conclusion "7" 2-pin gray connector distributor of ignition and high-voltage output of the ignition distributor
R = 10,0 kW (25.0 kW at engine SR20DE)
Ignition coil
Throttle Position Sensor
Conclusions "37" and "21", "29" terminal controller
R = 4,6 kOhm
Sensor fault. Broken wire between terminal "1" sensor connector and terminal "37" of the controller connector. Broken wire between terminal "3" sensor connector and pin "21", "29" terminal controller
Conclusions "37" and "20" terminal controller
The throttle pedal completely released: R = 4,0 kW; fully pressed: R = 0,5 kW
Sensor fault. Broken wire between terminal "1" sensor connector and terminal "37" of the computer connector. Broken wire between terminal "2" sensor connector and terminal "20" of the controller connector. Violation of shielding wire
?�
Conclusions "20" and "21", "29" terminal controller
Pedal completely released: R = 0,5 kW (1.0 kW at engine SR20DE); fully pressed: R = 4,0kOm (10,0kOm the engine SE20DE)
Sensor fault. Broken wire between terminal "2" sensor connector and terminal "20" of the controller connector. Broken wire between terminal "3" sensor connector and pin "21", "29" connector controller. Violation of shielding wire
The knock sensor (on the motor SR20DE)
Conclusion "27" controller and the "mass"
R = infinity.
Faulty knock sensor
Fuel injector 1 st cylinder
Conclusion "2" injector connector and output "101" terminal controller
R = 10-14 ohm
Faulty injectors. Broken wire between terminal "1" injector connector and terminal "101" terminal controller
The fuel injector 2-cylinder
Conclusion "2" injector connector and output "110" terminal controller
R = 10-14 ohm
Faulty injectors. Broken wire between terminal "1" injector connector and terminal "110" terminal controller
Fuel Injector third cylinder
Conclusion "2" injector connector and output "103" terminal controller
R = 10-14 ohm
Faulty injectors. Broken wire between terminal "1" injector connector and terminal "103" terminal controller
Fuel Injector 4-cylinder
Conclusion "2" injector connector and output "112" terminal controller
R = 10-14 ohm
Faulty injectors. Broken wire between terminal "1" injector connector and terminal "112" terminal controller
Fuel pump
Conclusions "1" and "2" of the fuel pump
R = 1-5 Ohm
Malfunction of the fuel pump
The output of "2" and the fuel pump connector "mass"
R = <0,5 Ohm
Broken wire between terminal "2" connector of the fuel pump and the point of connection of the "masses"
The regulator Idle
The output "1" idling regulator connector and output "113" terminal controller
R = 10 Ohm
Faulty AVR idling. Broken wire between terminal "2" terminal regulator of idling and the terminal "113" terminal controller
Regulator accelerated idling
Conclusions "1" and "2" terminal controller accelerated idling
R = 26 ohms
Faulty AVR accelerated idling
Conclusion "2" terminal controller accelerated idling and "mass" (engine GF14DEMGF16DE)
R = 0.5 ohms
Broken wire between terminal "2" terminal controller accelerated idling and the connection point of the "masses"
EGR solenoid valve and blow absorber
Conclusion "2" EGR solenoid connector and output "105" terminal controller
R = 32,6 ohm
Faulty solenoid valve. Broken wire between terminal "1" solenoid valve connector and terminal "105" terminal controller
Oxygen sensor in the exhaust gas
The output "1" sensor connector and output "102" terminal controller
R = 2,3-4,3 Ohm
Sensor fault. Broken wire between terminal "1" sensor connector and terminal "102" terminal controller
The pressure sensor in the power-assisted steering
Conclusion "43" and the output terminal of the controller "2" pressure sensor
R = infinity with the wheels set straight; R = 0,5 Ohm with the wheels turned fully
Faulty pressure sensor. Broken wire between terminal "43" of the controller connector and terminal "1" pressure sensor
Conclusion "2" pressure sensor connector and "mass"
R = <0,5 Ohm
Broken wire between terminal "2" pressure sensor connector and the connection point of the "masses"
Position sensor gear lever
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R = ?�?�?????????�?�???????�?? ?????? ?????�???�?�???????? ???�???�???�?�?�; R = 0,5 ???? ?????? ???�???�???�?�???????? ?????�???�?�?????? ???�?�?�???�
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?�?�?????? ?�2?� ???�?�???�???� ???�?�?�?????� ?? ?�???�?????�?�
R =< 0,5 ????
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R = ?�?�?????????�?�???????�?? ?????? ?????�???�?�???????? ???�???�???�?�?�; R = 0,5 ???? ?????? ???�?�???�???�?????? ???�?�?�???� ???�?�?�???�?????� ?? ?????�???�?�?????? ?�?�?� ???�?? ?�N?�
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?�?�?????? ?�1?� ???�?�???�???� ???�?�?�?????� ?? ?�???�?????�?�
R =< 0,5 ????
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?????�???? ?????????�???�?�?????? ?�???�?????�?� ???????�?????�?�?�???�
?�?�???????� ?�6?�, ?�13?�, ?�39?�, ?�48?�, ?�107?�, ?�108?�, ?�116?� ???�?�???�???� ???????�?????�?�?�???� ?? ?�???�?????�?�
R =< 0,5 ????
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?????????�?????�???�?? ???�?�?�????
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U = 5B
???�?????????�?????????�?? ???????�?????�?�?�???�
?�?�?�?�???? ?????�???�?�?????? ???????????�?�???????? ?�?�???�????????*
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Also
Also
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U = 5 ?� ?????? ?????�???�?�???????? ???�???�???�?�?�; ???�?� ???�???????�?�?????? ?????? ???�???�???�?�???????? ?????�???�?�?????? ???�?�?�???�
"
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U = 5 ?� ?????? ?????�???�?�???????? ???�???�???�?�?�; ???�?� ???�???????�?�?????? ?????? ???�?�???�???�?????? ???�?�?�???� ???�?�?�???�?????� ?? ?????�???�?�?????? ?�?�?� ?? ?�N?�
"
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?�?�???????� ?�40?�, ?�31?� ???�?�???�???� ???????�?????�?�?�???� (???�?? ?????????�?�?�?�?�?? GA14DE ?? GA16DE) ???�?? ?�30?�, ?�22?� (???�?? ?????????�?�?�?�?? SR20DE)
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When checking Never connect terminals extension wires to the terminals of the control device connector. It is necessary to move the protective cover and attach the pad terminals on the input side wires in the connector or using a special terminal block. In the latter case, the conclusions of the terminal block marking must correspond to the identification of the controller connector terminals.




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Preliminary checks

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