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Home >> Nissan-Datsun >> 2019 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction And Basic Inspection) >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Active Test Mode
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Active Test Mode

Test Item 

TEST ITEM

CONDITION

JUDGMENT

CHECK ITEM (REMEDY)

FUEL INJECTION

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

If malfunctioning symptom disappears, see CHECK ITEM.

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

ENG COOLANT TEMP

  • Engine: Return to the original non-standard condition
  • Change the engine coolant temperature using CONSULT.

If malfunctioning symptom disappears, see CHECK ITEM.

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

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.

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

EXH 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

COOLING FAN*

  • Ignition switch: ON
  • Turn the cooling fan "HI", "MID", "LOW" and "OFF" using CONSULT.

Cooling fan moves and stops.

  • Harness and connectors
  • Cooling fan motor
  • IPDM E/R

VIAS S/V-1

  • Ignition switch: ON
  • Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound.

Solenoid valve makes the operating sound.

  • Harness and connectors
  • Solenoid valve

ENGINE MOUNTING

  • Ignition switch: ON
  • Turn electronic controlled engine mount "IDLE" and "TRVL" with CONSULT.

Electronic controlled engine mount makes the operating sound.

  • Harness and connectors
  • Electronic controlled engine mount

VIAS S/V-2

  • Ignition switch: ON
  • Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound.

Solenoid valve makes the operating sound.

  • Harness and connectors
  • Solenoid valve

IGNITION TIMING

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

If malfunctioning symptom disappears, see CHECK ITEM.

Perform Idle Air Volume Learning.

POWER BALANCE

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

Engine runs rough or stops.

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

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

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