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Blinking A/c Light


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2005 ES330, 78K miles. The A/C off/on button has a light that indicates activation. This light has started to blink and then the A/C shuts off. The A/C restarts after I turn it off and then on. It has been wet and rainy recently (Northeast) and the start of the problem coincided with this weather. Is this belt slippage or a bigger proble? Any ideas out there? Thanks..

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2005 ES330, 78K miles. The A/C off/on button has a light that indicates activation. This light has started to blink and then the A/C shuts off. The A/C restarts after I turn it off and then on. It has been wet and rainy recently (Northeast) and the start of the problem coincided with this weather. Is this belt slippage or a bigger proble? Any ideas out there? Thanks..

well let me say something here. When it rained up here in wisconsin nonstop for 2weeks, i was out having fun in all the puddles which were everywhere flooding the streets. I drove into a big puddle and the a/c light started blinking. maybe a belt was slipping, you could be right. thats what happened to me, i wonder if your a/c needs to be recharged?

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Make sure you have the latest Magnetic Clutch Relay. This is also the solution if your AC works intermittently and the light flashes sometimes.

Old relay part #: 90987-02022

New relay part #: 90987-02028

Reference: TSB EL009-05 A/C - Inoperative/A/C Light Flashing

The relay is located in the fuse box under the hood. The part # is printed on the side of the relay. If yours has the old part number, just replace it with a new one. 5 minute fix. A new relay costs ~$60.

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  • 2 weeks later...
Make sure you have the latest Magnetic Clutch Relay. This is also the solution if your AC works intermittently and the light flashes sometimes.

Old relay part #: 90987-02022

New relay part #: 90987-02028

Reference: TSB EL009-05 A/C - Inoperative/A/C Light Flashing

The relay is located in the fuse box under the hood. The part # is printed on the side of the relay. If yours has the old part number, just replace it with a new one. 5 minute fix. A new relay costs ~$60.

Thanks for your help. I'll check it out.

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  • 4 months later...
Make sure you have the latest Magnetic Clutch Relay. This is also the solution if your AC works intermittently and the light flashes sometimes.

Old relay part #: 90987-02022

New relay part #: 90987-02028

Reference: TSB EL009-05 A/C - Inoperative/A/C Light Flashing

The relay is located in the fuse box under the hood. The part # is printed on the side of the relay. If yours has the old part number, just replace it with a new one. 5 minute fix. A new relay costs ~$60.

This website saved me hundreds of dollars from the dealer. After I read this site I switched relays with the identical relay that controlled the dome light. I then found a relay at Carquest for $30 and actually ended up pulling one from the junkyard off of a 2003 Toyota Highlander for $5. The A/C does not blink and everything works fine! Thanks Kashi125 for your valuable knowledge!

Bryan- Alabama

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