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Home >> Mazda >> 1990 >> RX-7 Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Testing >> Valve Relay >> Continuity Tests
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Continuity Tests

  1. Disconnect negative battery cable. Remove valve relay from hydraulic unit. Using a DVOM, check continuity between relay terminals "C" and "E" and between terminals "B" and "D". See Figure .
  2. Ensure continuity exists. Connect 12 volts to terminal "B", and ground terminal "D". Check continuity between terminals "A" and "E". Ensure continuity exists. If continuity is not as specified, replace valve relay.
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