How to disconnect complex electrical connectors


Mark Booth posted on forum a helpful explanation for someone wanting to know how to disconnect the locking wiring connector underneath their seat, and I thought I would repeat an edited version of it here to help others in general.  These locking connectors are not unique to vehicles produced by Mazda, as they are currently typical for the automotive industry.

  • Pull lock (#1; usually a contrasting color like white or yellow) partially out (should notice a detent*)
  • Depress tab (#2) and hold it down…
  • While pulling the connector (#3) away from it’s mating connector

BE SURE TO DISCONNECT THE NEGATIVE BATTERY CABLE FIRST and depress the brake pedal to discharge the circuits.  This will help insure that the electronic modules will recognize all connected devices upon re-connection.

*    For instance, in order to change the oil filter, a similar connector at the turbo diverter valve needs to be disconnected to get it’s harness out of the way, but if you are too aggressive with the yellow lock, it will inevitably separate from the connector and fall into the bottom of the engine compartment, and because there is a belly pan, it will be quite difficult to retrieve.

⇓  This photo shows the unlocked connector ready to pull away from it’s mating connector on the diverter valve.

turbo diverter valve connector1

3 thoughts on “How to disconnect complex electrical connectors

    • I was addressing the removable locking tabs, but you make a good point. I changed the word MOST to COMPLEX, and yet, the article could have included more examples.

      In an ideal world, where plastic never became brittle, locking tabs could all be obvious and non-removable, like this…


  1. I have an 03 miata and am trying to replace the driver side seatbealt. Would you be able to offer any help on proper disconnection of the yellow connector on the seatbelt itself? Any help will be greatly appreciated..


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