Air Amplifier - 4.7 Limited Dual zone AC - Toyota 4Runner Forum

B.E. Coyote · 03-26-2022, 07:26 AM

Need some help.
I have the blinking AC light and no AC. I get heat on the passenger side and most often no heat on the driver side but that is somewhat intermittent. I swapped the relay.

The self diagnostic gives me these three codes.

Is swapping the air amplifier a reasonable first step to trouble shoot? I think it can be swapped without tearing out the entire dash.

It is a common denominator in each code. Thanks

B.E. Coyote · 03-27-2022, 11:18 AM

any comments on those codes?

Syr4RinNC · 03-27-2022, 01:23 PM

The ac amplifier was my problem. I can’t tell you what codes it was throwing, I never checked. It’s a relatively cheap and simple process. I think I got one off eBay for $35. But looks like your read out gives you some possible solutions, so no guarantee

B.E. Coyote · 03-27-2022, 06:14 PM

If it were just the blend doors, would it shut down the AC and give me the blinking lights?

Syr4RinNC · 03-27-2022, 08:45 PM

I dont know - youll have to do some research into it. It didnt come up in my troubleshooting, but again looks as a possible solution to all three codes.

If the AC amplifier is the easier and cheaper option, may be worth a go or it be a waste of time/ money if it wasnt a problem

good luck

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