Diesel engine management YD25DDTi Nissan Serena 2 (C24)
Description of the system
Thanks to the integrated electronic engine control system (ECCS), the amount of fuel injected, the injection timing, engine preheating, etc. are controlled from one...
Thanks to the integrated electronic engine control system (ECCS), the amount of fuel injected, the injection timing, engine preheating, etc. are controlled from one...
Self-diagnosis function
General description If during self-diagnosis faults are detected in the main sensors required for the operation of the ECCS unit, fault codes are written into the...
General description If during self-diagnosis faults are detected in the main sensors required for the operation of the ECCS unit, fault codes are written into the...
Checking the idle speed
Standard idle speed. (after warming up) Checking and adjusting idle speed. Warm up the engine. Make sure there is no additional electrical load on the motor (the air...
Standard idle speed. (after warming up) Checking and adjusting idle speed. Warm up the engine. Make sure there is no additional electrical load on the motor (the air...
Checking the soot concentration in the exhaust
Perform 3-fold measurement in the modes shown in the figure. Check the soot concentration in the exhaust using the average value (in 3 dimensions). Standard soot...
Perform 3-fold measurement in the modes shown in the figure. Check the soot concentration in the exhaust using the average value (in 3 dimensions). Standard soot...
Checking the fuel filter
Removal and installation the water level sensor 1. Remove the water level sensor together with the fuel filter (see chapter Accelerator, fuel system and exhaust system)....
Removal and installation the water level sensor 1. Remove the water level sensor together with the fuel filter (see chapter Accelerator, fuel system and exhaust system)....
Standard input/output voltages of the ECCS control unit
Electrical diagram ECCS control unit connector pin assignment Standard input/output voltages of the ECCS control unit Measurements are carried out using an oscilloscope...
Electrical diagram ECCS control unit connector pin assignment Standard input/output voltages of the ECCS control unit Measurements are carried out using an oscilloscope...
Control unit — removal
1. Remove the glove box and the lower section of the instrument panel on the front passenger side, see Chapter Interior equipment . 2. Disconnect the ECCS unit wiring...
1. Remove the glove box and the lower section of the instrument panel on the front passenger side, see Chapter Interior equipment . 2. Disconnect the ECCS unit wiring...
TDC sensor
Examination Check the resistance (at normal room temperature) between contacts 1 and 2 of the TDC sensor. Resistance: 550±55Σ Removal 1. Remove the left engine guard...
Examination Check the resistance (at normal room temperature) between contacts 1 and 2 of the TDC sensor. Resistance: 550±55Σ Removal 1. Remove the left engine guard...
Mass air flow sensor
Examination Remove the sensor (without disconnecting the connector). Turn the ignition key to the ON position, blow air from the air cleaner housing and check the change...
Examination Remove the sensor (without disconnecting the connector). Turn the ignition key to the ON position, blow air from the air cleaner housing and check the change...
Coolant temperature sensor
Examination Check the resistance between contacts 1 and 2 of the sensor. Resistance: At a coolant temperature of approx. 20°C: approx. 2.5 kΣ At a coolant temperature of...
Examination Check the resistance between contacts 1 and 2 of the sensor. Resistance: At a coolant temperature of approx. 20°C: approx. 2.5 kΣ At a coolant temperature of...
Idle switch and full accelerator pedal switch
Examination Check the resistance between contacts 2 and 3 of the switches. The accelerator pedal is fully released (contact idle ON): there is conductivity The...
Examination Check the resistance between contacts 2 and 3 of the switches. The accelerator pedal is fully released (contact idle ON): there is conductivity The...
Accelerator Pedal Switch — Check
Check the resistance between contacts 1 and 3 of the switch. Accelerator pedal fully released: no conductivity Accelerator pedal pressed: there is conductivity If...
Check the resistance between contacts 1 and 3 of the switch. Accelerator pedal fully released: no conductivity Accelerator pedal pressed: there is conductivity If...
Engine quick warm-up switch
Checking the switch Check the resistance between contacts 1 and 2 of the switch. Switch ON: there is conductivity Switch OFF: No conductivity Removal 1. Remove the lower...
Checking the switch Check the resistance between contacts 1 and 2 of the switch. Switch ON: there is conductivity Switch OFF: No conductivity Removal 1. Remove the lower...
Ignition switch
Examination Using a tester, check the conductivity between the ignition switch contacts in all positions.
Examination Using a tester, check the conductivity between the ignition switch contacts in all positions.
Brake light switch
Examination Check the resistance between terminals 1 and 2 of the brake light switch. Brake pedal released: no conductivity Brake pedal pressed: there is conductivity...
Examination Check the resistance between terminals 1 and 2 of the brake light switch. Brake pedal released: no conductivity Brake pedal pressed: there is conductivity...
ABS Wheel Sensors (Vehicle Speed Signal) — Checking, Removing and Installing
See the relevant section in Chapter. Brake system .
See the relevant section in Chapter. Brake system .
Control lamp and glow relay
Checking the control lamp Turn the ignition key to the ON position. The glow plug indicator lamp should come on for a period of time depending on the coolant...
Checking the control lamp Turn the ignition key to the ON position. The glow plug indicator lamp should come on for a period of time depending on the coolant...
Glow Relay — Removal
1. Loosen the relay mounting bolt. 2. Disconnect the wiring connector and remove the relay.
1. Loosen the relay mounting bolt. 2. Disconnect the wiring connector and remove the relay.
Glow plugs
Examination Remove the glow plug connector bus. Check the glow plug resistance. Resistance (at normal room temperature): 0,8 Σ Removal Attention: Since glow plugs are...
Examination Remove the glow plug connector bus. Check the glow plug resistance. Resistance (at normal room temperature): 0,8 Σ Removal Attention: Since glow plugs are...
EGR valve
Examination Check the resistance between contacts 1 and 2, 2 and 3, 3 and 4, 5 and 6 of the connector. Resistance: approx. 15 Σ (at 20°C) Removal 1. Drain the coolant on...
Examination Check the resistance between contacts 1 and 2, 2 and 3, 3 and 4, 5 and 6 of the connector. Resistance: approx. 15 Σ (at 20°C) Removal 1. Drain the coolant on...
Radiator fans
Examination Disconnect the coolant temperature sensor connector and remove the 1, 2, 3 radiator fan motor relays, start the engine. Connect relay 1. Fans should rotate...
Examination Disconnect the coolant temperature sensor connector and remove the 1, 2, 3 radiator fan motor relays, start the engine. Connect relay 1. Fans should rotate...
Swirl Control Solenoid
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance: approx. 32 Σ (at 20°C) Apply battery voltage to solenoid terminals 1 and 2 and use...
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance: approx. 32 Σ (at 20°C) Apply battery voltage to solenoid terminals 1 and 2 and use...
Swirl Control Valve Actuator
Examination Using a hand vacuum pump, create a vacuum at the inlet and check that the mechanism axis moves smoothly and the vacuum is maintained at a constant level....
Examination Using a hand vacuum pump, create a vacuum at the inlet and check that the mechanism axis moves smoothly and the vacuum is maintained at a constant level....
VNT control valve
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance (at 20°C): approx. 12 Σ Removal 1. Remove the left engine guard from the bottom. 2....
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance (at 20°C): approx. 12 Σ Removal 1. Remove the left engine guard from the bottom. 2....
Exhaust Gas Flap Solenoid (Cold Climate Models)
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance: approx. 35 Σ (at 20°C) Apply battery voltage to solenoid terminals 1 and 2 and use...
Examination Check the resistance between contacts 1 and 2 of the solenoid. Resistance: approx. 35 Σ (at 20°C) Apply battery voltage to solenoid terminals 1 and 2 and use...
Exhaust gas damper
Examination Remove carbon deposits from the valve and body. Check the operation of the valve using a vacuum pump. The damper should open and close smoothly. Removal 1....
Examination Remove carbon deposits from the valve and body. Check the operation of the valve using a vacuum pump. The damper should open and close smoothly. Removal 1....
Forced crankcase ventilation system
Crankcase ventilation nipple and hose - check Check for gas leaks at the junction of the crankcase ventilation hose and the fitting. Remove the fitting and the crankcase...
Crankcase ventilation nipple and hose - check Check for gas leaks at the junction of the crankcase ventilation hose and the fitting. Remove the fitting and the crankcase...
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Link in different formats to this section
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- General information
- Control devices
- User manual
- Power unit
- Petrol engine SR20DE
- Diesel engine YD25DDTi
- Cooling and lubrication system
- Engine management SR20DE
- Engine management YD25DDTi
- Power and exhaust system
- Transmission
- Automatic gearbox
- Drive and cardan shafts
- Transfer case
- Chassis
- Front suspension
- Rear suspension
- Brake system
- Steering
- Body
- Safety system
- Interior (internal elements)
- Exterior (external elements)
- Doors, locks and windows
- Heating and air conditioning
- Electrical equipment
- Equipment and devices
- Lighting system
- Windshield wipers and washers
- Electrical circuits
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