1994 Mazda 929FACTORY OEM SERVICE PROCEDURE

Ignition Checks: IGNITOR

  1. Ensure coil and power source are okay before checking ignitor. Disconnect coil ignitor connector. Install Ignitor Checker (49 F018 002) and Adapter Harness (N018 001). Connect the ignitor checker and adapter between the ignitor and wiring harness, connect the power leads to the battery.
  2. Turn ignition on. Disconnect the high-tension coil lead from the distributor and hold it about 1/4" from ground. Flip the SW2 on and off, and verify a strong Blue spark is discharged from lead. If spark is weak in color, replace the coil. If no spark is present, check battery feed, main fuse, ignition switch and fusible links. Repair or replace as necessary.
    CAUTION: DO NOT hold the SW2 switch on longer than one second or igniter will be damaged.
  3. Turn ignition on. Using voltmeter, check voltage on Black wire of adapter harness. Flip SW2 switch on and off. Verify voltmeter fluctuates. If voltmeter does not fluctuate, replace ignitor and retest.


  1. Turn ignition off. Disconnect ignitor connector and install Test Harness (49 N018 001). Using a needle-type ohmmeter, connect (+) lead to ground and (-) lead to single-pin test wire of test harness. See Fig 1 .
    CAUTION: Ensure ohmmeter is installed with (+) lead to ground and (-) lead to single-pin wire of test harness. DO NOT reverse leads or damage may result.
  2. Connect Ignitor Checker (49 H018 910) to other lead of test harness and to battery. Set ohmmeter to X1 scale.
  3. Turn ignition on. DO NOT touch ignitor checker SW1 switch. Push up ignitor checker SW2 switch and note ohmmeter reading. Ohmmeter needle should jump to 1/2 of the scale and then return. If ohmmeter does not operate as specified, replace ignitor.
Fig 1: Checking Ignitor (929)
G92C24937Courtesy of MAZDA MOTORS CORP.
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