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Home >> Mazda >> 1990 >> 626 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Retrieving Codes >> Trouble Code Access

Trouble Code Access

  1. Using jumper wire, ground Green 1-pin connector. Connector is located at back of left front wheelwell. See Fig 1.
    Fig 1: Grounding Green 1-Pin Connector
    G117673Courtesy of MAZDA MOTORS CORP.
  2. With ignition on and engine stopped, observe Check Engine or MIL light. Note trouble codes. Check TROUBLE CODE IDENTIFICATION table for possible cause. If light remains on continuously, ECU is defective.
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