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Home >> Nissan-Datsun >> 2007 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 91 (Engine Control System - Introduction (MR20DE-CALIFORNIA)) >> Service Information >> Trouble Diagnosis >> CONSULT-III Function (ENGINE) >> Active Test Mode >> Test Item
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Test Item

WARNING: This page is about a different car, the 2009 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
ACTIVE TEST MODE REFERENCE CHART

TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY)
FUEL INJECTION
  • Engine: Return to the original trouble condition
  • Change the amount of fuel injection using CONSULT-III.
If trouble symptom disappears.
  • Harness and connectors
  • Fuel injector
  • Air fuel ratio (A/F) sensor 1
IGNITION TIMING
  • Engine: Return to the original trouble condition
  • Timing light: Set
  • Retard the ignition timing using CONSULT-III.
If trouble symptom disappears.
  • Perform Idle Air Volume Learning.
POWER BALANCE
  • Engine: After warming up, idle the engine.
  • A/C switch OFF
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Cut off each fuel injector signal one at a time using CONSULT-III.
Engine runs rough or dies.
  • Harness and connectors
  • Compression
  • Fuel injector
  • Power transistor
  • Spark plug
  • Ignition coil
COOLING FAN(1)
  • Ignition switch: ON
  • Turn the cooling fan "LOW", "MID", "HI" and "OFF" with CONSULT-III.
Cooling fan moves and stops.
  • Harness and connectors
  • Cooling fan relay
  • Cooling fan motor
ENG COOLANT TEMP
  • Engine: Return to the original trouble condition
  • Change the engine coolant temperature using CONSULT-III.
If trouble symptom disappears.
  • 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-III and listen to operating sound.
Fuel pump relay makes the operating sound.
  • Harness and connectors
  • Fuel pump relay
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-III.
Engine speed changes according to the opening percent.
  • Harness and connectors
  • EVAP canister purge volume control solenoid valve
FUEL/T TEMP SEN
  • Change the fuel tank temperature using CONSULT-III.
VENT CONTROL/V
  • Ignition switch: ON (Engine stopped)
  • Turn solenoid valve "ON" and "OFF" with the CONSULT-III and listen to operating sound.
Solenoid valve makes an operating sound.
  • Harness and connectors
  • EVAP canister vent control valve
V/T ASSIGN ANGLE
  • Engine: Return to the original trouble condition
  • Change intake valve timing using CONSULT-III.
If trouble symptom disappears.
  • Harness and connectors
  • Intake valve timing control solenoid valve
TUMBLE CONTROL VALVE
  • Ignition switch: ON
  • Turn tumble control valve "ON" and "OFF" with CONSULT-III and listen to operating sound.
Tumble control valve motor makes an operating sound.
  • Harness and connectors
  • Tumble control valve motor
(1) Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat.