Handling Connectors

Make sure the connectors are clean and have no loose wire terminals.
Make sure multiple cavity connectors are packed with grease (except watertight connectors).
All connectors have push-down release type locks (A).

Fig 1: Push Down Release Type Locks
Courtesy of KIA MOTORS AMERICA, INC.
Some connectors have a clip on their side used to attach them to a mount bracket on the body or on another component. This clip has a pull type lock.
Some mounted connectors cannot be disconnected unless you first release the lock and remove the connector from its mount bracket (A).

Fig 2: Removing Connector From Its Mount Bracket
Courtesy of KIA MOTORS AMERICA, INC.
Never try to disconnect connectors by pulling on their wires; pull on the connector halves instead.
Always reinstall plastic covers.

Fig 3: Reinstalling Plastic Covers
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Before connecting connectors, make sure the terminals (A) are in place and not bent.

Fig 4: Identifying Connectors Terminals
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Check for loose retainer (A) and rubber seals (B).

Fig 5: Loose Retainer & Rubber Seals
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The backs of some connectors are packed with grease. Add grease if necessary. If the grease (A) is contaminated, replace it.

Fig 6: Identifying Grease Application Area On Connectors
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Insert the connector all the way and make sure it is securely locked.
Position wires so that the open end of the cover faces down.

Fig 7: Positioning Wires With Open End Facing Down
Courtesy of KIA MOTORS AMERICA, INC.