The relays in the 1987 Maxima regulate the electrical current sent to the components that connect to them. A relay prevents electric surges from getting to the component, which would possibly burn the component out. Eventually these relays burn out much like a fuse, and you need to replace them. The procedure is very easy and will take about five minutes. This is the least expensive repair you will ever make to your car. The relay box on the Maxima is in the engine compartment, on the driver's side, just behind the strut tower.
Tools Used: Metric wrench set
Remove a Relay
Disconnect the negative battery terminal using a wrench to loosen the nut.
Open the relay box by unsnapping the lid and pulling it open. Locate the relay that you need to remove. Each relay has a label, either on the relay block itself or on the lid. Grasp the relay firmly and pull it straight out.
Put the new relay in place, and push it firmly into the relay block so that it seats properly. Replace the lid on the relay block, making sure it snaps into place. Reconnect the negative battery terminal.
Tips & Warnings
Do not work on electrical components of your vehicle without first disconnecting the battery as instructed. Failure to do so could result in severe electrical shock.
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