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Warning Light Flashes 5 Or 9 Times

WARNING: This page is about a different car, the 1991 Mazda RX-7, 1991 Mazda MX-5 Miata, 1990 Mazda RX-7, and 1990 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM. Disconnect front impact sensor connectors (center, left, and right), and measure resistance of each sensor. See Fig 1 . Resistance should be approximately 1.2 k/ohms. If resistance is not as specified, replace sensor.
  2. If resistance is about 1.2 k/ohms, reconnect all front impact sensor connectors. Disconnect diagnostic module Black and Gray connectors. See Figure or Figure . Measure resistance between diagnostic module Gray connector Brown/Green wire and ground. If resistance is 1.2 k/ohms, go to next step. If resistance is not 1.2 k/ohms, replace wire harness.
  3. Measure resistance between diagnostic module Gray connector Brown/Red wire and ground. If resistance is 1.2 k/ohms, go to next step. If resistance is not 1.2 k/ohms, replace wire harness.
  4. Measure resistance between diagnostic module Black connector Brown/Black wire and ground. If resistance is 1.2 k/ohms, replace diagnostic module. If resistance is not 1.2 k/ohms, replace wire harness.
Fig 1: Checking Impact Sensor Resistance
G91C12890Courtesy of MAZDA MOTORS CORP.
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