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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Engine Control System (Introduction) (3.0L)) >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Active Test Mode
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Active Test Mode

WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.

Test Item 

TEST ITEM

CONDITION

JUDGEMENT

CHECK ITEM (REMEDY)

ENG COOLANT TEMP

  • Engine: Return to the original trouble condition
  • Change the engine coolant temperature using CONSULT.

If trouble symptom disappears, see CHECK ITEM.

  • Harness and connectors
  • Engine coolant temperature sensor
  • Fuel injector

FUEL INJECTION

  • Engine: Return to the original trouble condition
  • Change the amount of fuel injection using CONSULT.

If trouble symptom disappears, see CHECK ITEM.

  • Harness and connectors
  • Fuel injector
  • Air fuel ratio (A/F) sensor 1

PURG VOL CONT/V

  • Engine: After warming up, run engine at 1, 500 rpm.
  • Change the EVAP canister purge volume control solenoid valve opening percent using CONSULT.

Engine speed changes according to the opening percent.

  • Harness and connectors
  • Solenoid valve

FUEL/T TEMP SEN

Change the fuel tank temperature using CONSULT.

POWER BALANCE

  • Engine: After warming up, idle the engine.
  • A/C switch OFF
  • Selector lever: P or N
  • Cut off each injector signal one at a time using CONSULT.

Engine runs rough or dies.

  • Harness and connectors
  • Compression
  • Fuel injector
  • Power transistor
  • Spark plug
  • Ignition coil

EXT V/T ASSIGN ANGLE

  • Engine: Return to the original non-standard condition
  • Change exhaust valve timing using CONSULT.

If malfunctioning symptom disappears, see CHECK ITEM.

  • Harness and connectors
  • Exhaust valve timing control solenoid valve

VENT CONTROL/V

  • Ignition switch: ON (Engine stopped)
  • Turn solenoid valve ON and OFF with the CONSULT and listen to operating sound.

Solenoid valve makes an operating sound.

  • Harness and connectors
  • Solenoid valve

FAN DUTY CONTROL*

  • Ignition switch: ON
  • Change duty ratio using CONSULT.

Cooling fan speed changes.

  • Harness and connectors
  • Cooling fan motor
  • Cooling fan relay
  • Cooling fan control module
  • IPDM E/R

ALTERNATOR DUTY

  • Engine: Idle
  • Change duty ratio using CONSULT.

Battery voltage changes.

  • Harness and connectors
  • IPDM E/R
  • Alternator

FPCM

  • Engine: Return to the original trouble condition
  • Select "LOW", "MID" and "HI" with CONSULT.

Fuel pump speed changes or stops.

  • Harness and connectors
  • Fuel pump control module (FPCM)

IGNITION TIMING

  • Engine: Return to the original trouble condition
  • Timing light: Set
  • Retard the ignition timing using CONSULT.

If trouble symptom disappears, see CHECK ITEM.

Perform Idle Air Volume Learning.

WASTEGATE ACTUATOR

  • Ignition switch: ON
  • Engine stopped
  • Change valve of wastegate actuator target angle using CONSULT

Wastegate valve position sensor voltage changes according to valve target angle

  • Harness and connectors
  • Electric wastegate control actuator (Removal bypass valve from turbocharger is NG)
  • Turbocharger assembly

ENGINE OIL PRESSURE CONTROL SOLENOID VALVE

  • Water temperature: >-10 deg.C
  • Engine oil temperature: < 120 deg.C (248 deg.F)
  • Engine speed: < 4000rpm

Engine oil pressure change

  • Harness and connectors
  • Engine oil pressure control solenoid valve
  • Engine oil pressure sensor
  • Engine oil pump

Charge air cooler cooling electric water pump

  • Engine: Idle

Change the driving mode of charge air cooler cooling electric water pump.

  • Charge air cooler coolant temperature sensor
  • Intake air temperature sensor
  • Engine oil pressure sensor
  • Charge air cooler cooling electric water pump 1, 2

INT V/T ASSIGN ANGLE

  • Engine: Return to the original non-standard condition
  • Change intake valve timing using CONSULT.

If malfunctioning symptom disappears, see CHECK ITEM.

  • Harness and connectors
  • Intake valve timing control solenoid valve

*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.