1990 Nissan-Datsun 240SX XE, StandardFACTORY OEM SERVICE PROCEDURE

Ignition Coil Power Source

  1. Disconnect ignition coil 2-wire connector. On Van, disconnect intake and exhaust ignition coil 2-wire connectors. Turn ignition on.
  2. Check for voltage at wire terminal specified in IGNITION COIL POWER SOURCE TERMINAL IDENTIFICATION table. If voltage is present, go to POWER TRANSISTOR test. If voltage is not present, check continuity of entire circuit between battery and ignition coil, including fuse link and ignition switch.
IGNITION COIL POWER SOURCE TERMINAL IDENTIFICATION

Application Wire Color
Axxess White
Maxima White/Green
Pathfinder, Pickup & Sentra Black/White
Pulsar NX White/Black
Stanza & 240SX Black/Red
Van (1)
(1) Wire color not available at time of publication. Voltage should be present on one of 2 wire terminals on 2-wire connector.
Factory Service Tools

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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.

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