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Home >> Nissan-Datsun >> 2014 >> Xterra PRO-4X, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) >> System Description >> Diagnosis System (ECM) >> Diagnosis Description >> CONSULT Function >> Active Test Mode
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Active Test Mode

TEST ITEM CONDITION

TEST ITEM CONDITION JUDGEMENT 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
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
  • Shift lever: P or N
  • Cut off each fuel 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
COOLING FAN()
  • Ignition switch: ON
  • Turn the cooling fan HI, LOW and OFF using CONSULT.
 Cooling fan moves and stops.
  • Harness and connectors
  • Cooling fan motor
  • IPDM E/R
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
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
FUEL PUMP RELAY
  • Ignition switch: ON (Engine stopped)
  • Turn the fuel pump relay ON and OFF using CONSULT and listen to operating sound.
 Fuel pump relay makes the operating sound.
  • Harness and connectors
  • Fuel pump relay
VIAS S/V-1
  • Ignition switch: ON
  • Turn solenoid valve ON and OFF with CONSULT and listen for operating sound.
 Solenoid valve makes an operating sound.
  • Harness and connectors
  • Solenoid valve
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.
VENT CONTROLV
  • 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
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
ALTERNATOR DUTY
  • Engine: Idle
  • Change duty ratio using CONSULT.
 Battery voltage changes.
  • Harness and connectors
  • IPDM E/R
  • Alternator
TUMBLE CONTROL VALVE
  • Ignition switch: ON
  • Turn intake manifold runner control valve "ON" and "OFF" using CONSULT and listen to operating sound.
 Intake Manifold Runner control valve motor makes an operating sound.
  • Harness and connectors
  • Intake Manifold Runner control valve motor
(1) Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
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