A/C error code -26!

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d3funct
Posts: 42
Joined: Wed Dec 13, 2006 3:59 pm
Car: 1990 Nissan Infiniti Q45

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So reading the FSM, I know the PBR circuit is shorted.

However, the FSM is for the 94-96 Q - I have a JDM 90 Q.

Its thrown me completely, cos the FSM states there is 1 air mix motor, however there are 2 in mine!!

When I run the diagnostics, I can see the top one "appears" to be working normally however the bottom one does not move....

They both seem to move independentaly of eachother but are attached to the same axle?

Whats going on

Am I seeing double or is this normal?


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d3funct
Posts: 42
Joined: Wed Dec 13, 2006 3:59 pm
Car: 1990 Nissan Infiniti Q45

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*knock knock* anyone familiar with early G50 a/c units?


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d3funct
Posts: 42
Joined: Wed Dec 13, 2006 3:59 pm
Car: 1990 Nissan Infiniti Q45

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Well, oddly enough the error code looks to have been a loose connection caused by the blokes who installed my stereo system.

This however didnt cause the primary root of my a/c problems. After the system was regassed, and cleaned I still had warm air.

Doing some research I had a suspicion it may be the duel pressure switch on the drier chamber.

Sure enough, a previous battery install had severed the wires - a quick solder and patch-me-up and I had freezing a/c once again...

Thank **** for that - it gets up to 108F here in Perth ya know!!!

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Q451990
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Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
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Nothing like talking to yourself... at least you got the answer! Heath


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