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AC light blinks when engine cool, works perfect when warm

Discussion in 'Generation 1 Prius Discussion' started by Nine44, Jul 14, 2023.

Nine44 Junior Member

Joined:

Apr 28, 2022

9

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0

Location:

Cincinnati, OH

Vehicle:

2002 Prius

Model:

N/A

2002 Gen 1 Prius. I just replaced my AC compressor, condenser and filter (all new components), evacuated and put the correct amount of PAG and Freon in it. Everything works great after the engine is running for a minute. Pours out cold air in the hottest of weather. But when the car first starts up, the light blinks and no AC. Any ideas what's going on?

#1 Nine44, Jul 14, 2023
Josey Active Member

Joined:

Jun 10, 2019

290

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0

Location:

Virginia

Vehicle:

2003 Prius

Model:

One

The blinking light likely means that there are error codes, so start there. While this page is about clutch problems that shouldn't apply to you, the first part tells you how to put the system in diagnostic mode to get error codes: Station's AutoBlog: Gen 1 Prius A/C Clutch Diagnostics and Replacement

#2 Josey, Jul 14, 2023

ChapmanF Senior Member

Joined:

Mar 30, 2008

23,846

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Location:

Indiana, USA

Vehicle:

2010 Prius

Model:

IV

Is the trouble code 22? How did you set the drive belt tension?

#3 ChapmanF, Jul 14, 2023

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