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HOMESERVICE MANUALSNISSAN-DATSUN2009XTERRA SE, 4WDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - COMPONENT TESTINGIGNITION SIGNALCOMPONENT INSPECTIONIGNITION COIL WITH POWER TRANSISTOR
2009 Nissan-Datsun Xterra SE, 4WD

Ignition Coil With Power Transistor

2009 Nissan-Datsun Xterra SE, 4WDSECTION Ignition Coil With Power Transistor
CAUTION: Do the following procedure in the place where ventilation is good without the combustible.
  1. Turn ignition switch OFF.
  2. Disconnect ignition coil harness connector.
  3. Check resistance between ignition coil terminals as follows.
    RESISTANCE REFERENCE CHART

    Terminal No. (Polarity) Resistance Ω [at 25°C (77°F)]
    1 and 2 Except 0 or ∞
    1 and 3 Except 0
    2 and 3
    Fig 1: Checking Resistance Between Ignition Coil Terminals
    G04875504Courtesy of NISSAN MOTOR CO., U.S.A.
  4. If NG, Replace ignition coil with power transistor.

    If OK, go to next step.

  5. Turn ignition switch OFF.
  6. Reconnect all harness connectors disconnected.
  7. Remove fuel pump fuse (No. 48) in IPDM E/R to release fuel pressure.
    NOTE: Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following procedure.
  8. Start engine.
  9. After engine stalls, crank it two or three times to release all fuel pressure.
  10. Turn ignition switch OFF.
  11. Remove ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
  12. Remove ignition coil and spark plug of the cylinder to be checked.
    Fig 2: Identifying IPDM E/R And Fuel Pump Fuse (15A)
    G04894170Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Crank engine for five seconds or more to remove combustion gas in the cylinder.
  14. Connect spark plug and harness connector to ignition coil.
  15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal portion as shown in the figure.
  16. Crank engine for about three seconds, and check whether spark is generated between the spark plug and the grounded part.
    Fig 3: Checking For Spark
    G04886523Courtesy of NISSAN MOTOR CO., U.S.A.

    Spark should be generated. 

    CAUTION:
    • Never place to the spark plug and the ignition coil within 50 cm (19.7 in) each other. Be careful not to get an electrical shock while checking, because the electrical discharge voltage becomes 20 kV or more.
    • It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is made.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.