Brad's Car Manuals: A 3rd party mirror of CHARM + LEMON car manuals
Home >> Mazda >> 1994 >> Protege Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Relays & Solenoids >> Relays >> Main Relay

Main Relay

Download the full database via torrent (~1.1 TB)  |  Download Brad's custom LEMON patches
  1. Ensure main relay clicks when ignition is turned on and off.
  2. If no sound is heard, unplug relay. Apply 12 volts to terminal "A", and ground terminal "B". See Fig 1 or Fig 2 .
  3. Using ohmmeter, check continuity between terminals "C" and "D". Continuity should be present with 12 volts applied. Continuity should not exist with no voltage applied. Replace main relay as necessary.
Fig 1: Testing Main Relay (MX-3 DOHC, Protege & 323)
G117781Courtesy of MAZDA MOTORS CORP.
Fig 2: Identifying Main Relay Terminals (MX-3 SOHC)
G92J24991Courtesy of MAZDA MOTORS CORP.
scientia non olet · About Brad's Car Manuals