[quote=daless2;1031566]Bingo! Give Zekeman the cigar (or beer)!
There are two Solar Sensors in a dual optical device, right and left side in one physical device.
There is a 6-pin connector on the solar sensor, pin #1 is for the Drivers side (TSL), Pin# 2 is the Passenger side (TSR). These are outputs. 0.8 to 4.3 V A/C Amplifier.
Pin #3 is Ground and Pin # 6 is +V.
Attached is a PDF on how to test the Solar Sensor.
Frank[/quote I'll take the beer!!! Thanks for putting up that drawing it is very helpful...Steve
I wish I had better news...It does not work.. the control on the dash does not control the blower, it stays on full and the mode control does not work and the temperature is on full heat and no way to lower it...Anyway I'm wondering if the "A/C amp" is different for the auto A/C vs the manual or I might still have a defective digital auto a/c control..I have to find out exact parts numbers for the A/C amp and ECU for the auto A/C vs the manual version and see if the Toyota OEM part numbers are in fact different...
That solar sensor does control the headlights on a Limited model. I know because I have a sign on my dash, and sometimes it slides over and covers up the sensor, and suddenly I'm driving during the day with all my lights on.
Actually, it must have at least two modes. One: it turns the lights on but leaves the dash lights the same brightness as daytime; this is for twilight. As it gets darker, the dash lights dim and the Nav screen reverses color scheme to show up better in the dark.
Oh, and I never even noticed that it controls the climate control. That system seems to constantly be doing something automatic, switching the A/C on and off, the recirculation on and off, sending air either to the upper or to the lower vents. . . but I find it does a pretty good job at keeping me comfortable at a constant 67 degrees!
__________________ [Tundra Bay]
Proud Member CBTMA
Radiant Red 2007 Double Cab Limited w/Graphite Leather Interior
Factory Nav, Sonar, and 10 spkr 440W JBL stereo with Sirius (sweet) Cold Weather Pkg and Block Heater. Brushed SS Stepboards,
Tires: BFG All Terrain T/A KO LT265 65 R 18, Diamondback Tonneau Cover.
Curt Front Receiver, custom 8" extension, & Warn 8000lb winch back/front mountable,
Tekonsha Prodigy Brake Controller DSP 16,000 lb 5th wheel hitch Firestone Ride Rite 2445 Air Bags
Last edited by TundraBay; 05-31-2008 at 07:14 PM.
Reason: A/C
No luck. If anyone reading this has a way of getting the a/c amplifier oem part #s from an auto a/c (limited) and also from a manual a/c amp please post them if you can.
Zekeman, I looked at an online parts place and it shows an A/C amp for Auto and one for Manual. They are the same price, but they do not show the part number. I tried to add to cart to see if a part number would show, but no go. Probably just need to call the parts dept.
Zekeman, I looked at an online parts place and it shows an A/C amp for Auto and one for Manual. They are the same price, but they do not show the part number. I tried to add to cart to see if a part number would show, but no go. Probably just need to call the parts dept.
Steve
I did the same thing you mention above and I also called my dealer and they said I need the vin# of each vehicle (BULL)...The only way I can see getting the numbers is if someone with a Limited would be willing to look at the a/c amp and get the #s and I would get my part#s and if someone else also with a manual would look at their a/c amp we could see if both manuals are the same and if the Limited or auto version is different,That would put an end to this question.
I bet this is the last piece of the puzzle. It appears there are different numbers for the Auto A/C versus the Manual one.
For reference, my truck is a 2007 Crewmax SR5 5.7L
Steve
strange, because my dealer gave me the following # for manual a/c: 88650-0c040. since those guys at the local parts dept are not too competent, I wouldn't be surprised that yours the correct one.
I've been looking into doing this conversion also. I looked at a wrecked limited today and the part# for the amp is 88650-0C070. The part # in my 08 crewmax is 88650-0C050 also. I also made a list of all of the wires in the J19 connector and compared them from the manual to the auto system. The only extra wires are for the 2 previously mentioned sensors- 4 wires in total. I went and ripped the dash out of my truck and looked at the existing harness to see if in fact it was prewired for these circuits. The wires are in fact all there and in the correct locations so that is a good thing. It would appear that the amp needs to be replaced, but you won't have to modify the harness.
One thing that nobody has mentioned here is that the amp will most likely need to see the extra damper servo motor on the upper part of the manifold in order to work properly. I have to look again to see where the connector is for the servo motor. It may have to be added as well. I can only assume that every component will need to be plugged in or the system will go into some kind of default limp mode. I plan on getting all of the components from the wrecked limited that I was looking at today. The only crappy thing is that the wrecker is super expensive and will most likely make me buy the whole heater box as an assembly. It looks like the damper can be added to the existing box, though. There are mounting points for the motor on my heater box already, I'm just not sure if the flap can be added without removing the whole unit. Even though it may cost me $600 to get all the parts, it sure beats paying the extra 10 grand at the dealer!
Ok, so I thought I would post an update...
I managed to get all of the parts I thought I would need to try this swap. I picked up the thermistor complete with tube that attaches to the heater box, photo sensor, amplifier , control panel, and the complete heater box assembly from a wrecked Limited Crewmax. (The wrecker would not sell me just the servo motor and damper). I plugged in the control panel and had the same results as previously reported. I then plugged in the amplifier which gave me control of the fan speeds, but still had some issues with the auto function. I then plugged in the thermistor behind the driver's knee panel and ran the tube to where it is supposed to be located behind the cigarette lighter panel. There is an existing place for it, the hole just needs to be cut out for it to be installed properly. I also installed the photo sensor in the top of the dash. After much searching, I could not find the connector for this sensor as it was not plugged in behind the dummy knock-out as most of the other connectors are. I did not add the final servo motor or damper yet as this involves the complete removal of the heater box assembly from the dash. The additional servo motor also requires a different harness which basically adds it in series with all of the other servos. I believe this network is all tied together via the canbus system. It appears as though the harness is the more or less the same, just one less motor in the series, so if the extra servo is not installed, then this harness does not need to be replaced.
I then put my dash all back together and tested everything out. I took my truck for a drive and it appears that I now have a fully functioning auto climate control in my SR5 Crewmax!!! All of the temp dials work as they should as well as the manual and auto functions. I will have to check into the programmable defaults, but so far I couldn't be happier. I may just change a couple of the startup settings. The only 2 things that I did not add yet are the extra damper and servo motor and to connect the photo sensor. The heater box is the same, they just add the damper to the limited one. Even the mounts for the motor are in the correct place. It appears as though the network is completely disregarding the missing servo as it doesn't see any open connections since I didn't change the harness. I think I can live without the 1 or 2 degree difference the photo sensor is supposed to adjust for also. I will go back to the wrecker tomorrow and see if I can find out where the connector is hiding for it anyways.
So in a nutshell, yes it can be done!!! None of it will work without the correct amplifier. This whole swap took me about an hour or so to complete. I am a mechanic, but I think anybody else can do this swap easily. You just need a philips screwdriver and a ten mm socket. (and all of the right parts).
Wooooohooooo! Glad to be the Guinnea Pig on this one....
Re: Change Manual a/c heater to Auto digital
Linear Mode
