Tip & How-To about 1998 Plymouth Grand Voyager

Checking Relays (and fuses)

This tip is useful for all types of vehicles:

If you think that you may have a bad (burned out) relay: before you go buy a new one: purchase (if you don't have one) a fuse tester.

1. Disconnect the battery.
2. Pull suspected "bad' relay
3. With fuse tester adjusted accordingly:
a. make sure relay is not melted, or coming apart
b. With the two prongs on the tester, touch two prongs on the relay until the light on the tester comes on. There is no way of knowing with two are the live ones except by touching two together.
c. If the light comes on, you're good to go; and if not...well, you know...replace the relay.

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1 Answer

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Great tip! Thanks. I inspected my relay and the contacts definitely showed signs of arching. Another cause of a flashing AC button light is a loose connection (male to female plug) at the compressor. I had my timing belt replaced and the Toyota mechanic failed to plug it back in... the light would be on for about 5 seconds then start to flash for this as well.

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replace oxygen sensor

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