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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Engine Control System (1 Of 2)) >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Active Test Mode

Active Test Mode

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

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.