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On-Board Diagnostic Test Procedure

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Remove the A/C amplifier.
  3. Disconnect the A/C amplifier connector (24-pin).
  4. Using a jumper wire or a similar device, short circuit A/C amplifier connector (24-pin) terminals 1P and 1R.
  5. Connect the negative battery cable.
  6. Turn the ignition switch to the ON position (engine off).
Fig 1: Jumpering A/C Amplifier Connector (24-Pin) Terminals 1P & 1R
G01346108Courtesy of MAZDA MOTORS CORP.