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Home >> Infiniti >> 2019 >> Q50 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2.0L) (2 Of 3) >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Active Test Mode
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Active Test Mode

Test Item 

Test item

Full spell

Condition

CHECK DECELERATION AIR SWITCHOVER VALVE

CHECK DECELERATION AIR SWITCHOVER VALVE

  • Combustion engine AT STANDSTILL.
  • Ignition ON.

CHECK ENGINE OIL PUMP VALVE

CHECK ENGINE OIL PUMP VALVE

  • Combustion engine AT STANDSTILL.
  • Ignition ON.

Check boost pressure control

Check boost pressure control

Engine running at idle

CHECK PURGING SWITCHOVER VALVE

CHECK PURGING SWITCHOVER VALVE

  • Combustion engine AT STANDSTILL
  • Ignition ON.

Check intake camshaft solenoid

Check intake camshaft solenoid

  • The ignition is switched ON.
  • Engine running at idle
  • Coolant temperature > 80 deg.C (176 deg.F)

Check exhaust camshaft solenoid

Check exhaust camshaft solenoid

  • The ignition is switched on.
  • Engine running at idle
  • Coolant temperature > 80 deg.C (176 deg.F)

CAMSHAFT POSITIONER

CAMSHAFT POSITIONER

  • Apply parking brake.
  • Move selector lever to position 'P' or 'N' on vehicles with automatic transmission.
  • Shift the gearshift lever to neutral on vehicles with manual transmission.
  • During the test the engine speed must be between 2, 700 and 3, 500 RPM.

Check cylinder fuel injectors

Check cylinder fuel injectors

Engine running at idle

Quantity control valve

Quantity control valve

  • The fuel low pressure circuit is OK.
  • The combustion engine is at idle.
  • All electrical accessories must be switched OFF.

CHECK FUEL HIGH PRESSURE CIRCUIT FOR LEAKTIGHTNESS

CHECK FUEL HIGH PRESSURE CIRCUIT FOR LEAKTIGHTNESS

  • Ignition ON.
  • Coolant temperature between 75 deg.C and 105 deg.C (167 deg.F and 221 deg.F)
  • Fuel temperature between 40 deg.C and 80 deg.C (104 deg.F and 176 deg.F)
  • Start combustion engine.
  • Combustion engine IDLING
  • Switch off all current consumers.
  • Connect charger for battery.

CHECK FUEL HIGH PRESSURE CIRCUIT

CHECK FUEL HIGH PRESSURE CIRCUIT

  • Ignition ON.
  • Apply parking brake.

Check fuel pressure and temperature sensor rail pressure

Check fuel pressure and temperature sensor rail pressure

  • Combustion engine IDLING.
  • Coolant temperature between 75 deg.C (167 deg.F) and 105 deg.C (221 deg.F)
  • All electrical accessories must be switched OFF.

CK ENG AND AC WITH INTEGRATED CONT FAN MOTOR

CHECK COMBUSTION ENGINE AND AC WITH INTEGRATED CONTROL FAN MOTOR

  • Ignition ON.
  • Combustion engine AT STANDSTILL
  • Vehicle AT STANDSTILL

ALTERNATOR DIAGNOSIS

ALTERNATOR DIAGNOSIS

  • DTC is not detected.
  • Combustion engine AT STANDSTILL
  • No charger must be connected.
  • The charge level of the battery is OK.
  • The battery voltage must be between 11.5 V and 15 V.
  • Switch off air conditioning.
  • Make sure that all current consumers are switched off.

Check coolant thermostat heating element

Check coolant thermostat heating element

  • Engine running at idle.
  • Combustion engine AT STANDSTILL
  • Vehicle AT STANDSTILL

CHECK THROTTLE VALVE ACTUATOR

CHECK THROTTLE VALVE ACTUATOR

  • Coolant temperature > 80 deg.C (176 deg.F)
  • Ignition ON
  • The combustion engine is at a standstill.
  • Accelerator pedal NOT OPERATED

MIXTURE ADAPTATION

MIXTURE ADAPTATION

  • Engine speed: 400 - 800 RPM
  • Coolant temperature between 40 deg.C (104 deg.F) and 80 deg.C (176 deg.F)
  • Engine load: 30% or less
  • Selector lever: P or N

AUTO STOP START

AUTO STOP START

  • Engine: After warning up, run engine at idle.
  • Selector lever: N or P range
  • "Start" and "Cancel" using CONSULT.
CAUTION: Be careful so that a hood operations in the opened state when carry out work.
NOTE: Before performing this test, be sure to check that "OK" is displayed on "BATTERY STS" and "SUB-BATTERY STATUS" in "DATA MONITOR" of EMCM.

CHECK FUEL PRESSURE AND INTERNAL LEAKTIGHTNESS OF FUEL SYSTEM

CHECK FUEL PRESSURE AND INTERNAL LEAKTIGHTNESS OF FUEL SYSTEM

  • The fuel tank must not be empty.
  • The coolant temperature must be less than 80 deg.C.
  • Connect pressure gauge.
  • The fuel level must be greater than 10 liter.
  • Run combustion engine at idle.

CHECK COOLANT PUMP SWITCHOVER VALVE

CHECK COOLANT PUMP SWITCHOVER VALVE

Coolant temperature between 70 deg.C (158 deg.F) and 90 deg.C (194 deg.F)

Throttle valve storks load up

Throttle valve storks load up

Follow the instruction of CONSULT display.

Purging switchover valve

Purging switchover valve

Follow the instruction of CONSULT display.

Check activated charcoal canister shutoff valve

Check activated charcoal canister shutoff valve

Follow the instruction of CONSULT display.

Check leak test of fuel tank

Check leak test of fuel tank

Follow the instruction of CONSULT display.

Check fuel tank pressure sensor

Check fuel tank pressure sensor

Follow the instruction of CONSULT display.

Check purging pressure control

Check purging pressure control

Follow the instruction of CONSULT display.

Check cylinder fuel injectors for leaks

Check cylinder fuel injectors for leaks

Follow the instruction of CONSULT display.