2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Ignition Coil With Power Transistor

WARNING: This page is about a different car, the 2011 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
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.
    TERMINAL RESISTANCE REFERENCE CHART

    Terminal No. (Polarity) Resistance Ξ© [at 25Β°C (77Β°F)]
    1 and 2 Except 0 or ∞
    1 and 3 Except 0
    2 and 3
    Fig 1: Checking Resistance Between Ignition Coil Terminals
    G07152840Courtesy of NISSAN NORTH AMERICA, INC.
  4. If NG, Replace ignition coil with power transistor. Refer to "EXPLODED VIEW ".

    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.
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When to See a Mechanic

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

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

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