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Toyota Prius Electrical and Lighting Questions

83 messages,  Last post on Nov 05, 2009 at 5:03 AM

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What is this discussion about? Toyota Prius, Electrical

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#12 of 83 Re: Utility Battery Drained/Jump Starting [pathstar1] by talagery Jan 23, 2008 (11:18 am)
Replying to: pathstar1 (Jan 02, 2008 12:44 pm) Thanks for that info.. This is exactly what happened to my brand new 2008 Prius with 1200 miles on it. I realise now that I must have left the headlight on as I powered off from the passenger side. After sometime, I was told that my alarm is going off (which is supposed to happen if the 12V battery is totally discharged (sounds counterintuitive to me !). My dealer Pat Lobb Toyota of McKinney was nice enough to replace my battery free of charge although the 'dead' battery was perfectly fine.   Interesting side note: Realised that the 12V has to be active for switching the car to Neutral..
#14 of 83 Retrofitting the HID lights?? by birger Jan 31, 2007 (7:26 am)
Hi,   We're very near to deciding on getting a Prius. In Europe, the vehicle does not have HID headlights, not even as an option. Having had a positive experience retrofitting OEM HID headlights to a Mercedes ML, I would like to know if any US owners have been down that road, and if they could share their experiences.   On the ML, with the help of a couple of "pigtail adapters" ist was a plug&play operation, and the result was absolutely stunning.   TIA for your feedback.   Birger Replies to this message: railroadjames (Feb 28, 2007 11:06 am)
#15 of 83 Re: Retrofitting the HID lights?? [birger] by railroadjames Feb 28, 2007 (11:06 am)
Replying to: birger (Jan 31, 2007 7:26 am) Just passing along some info about headlight (bulbs)...I recently noticed a driver's side headlight out on my 3 yr old '04 Prius. When I went to purchase a replacement (BULB) I had several selections to pick from (cost ranging from $8.00- $22.00). I selected a lower priced bulb and went home to my garage and attempted to change the bulb myself(as I had done so many times B/4 in many of my other past cars). Unfortunitly what a task I had B/4 me. Upon opening the hood I realized the opening behind the headlite assembly is next to impossible. I removed the cover to a module just behind the headlite and tried again to get to the bulb unsuccessfully. Then I called "TOYOTA" for help at the dealership. They explained I had to turn a rubber cover & pull out that cover and release a wire clip and then turn bulb to remove. I tried and tried to no avail and finally took it to the dealer who(thank God) let a mechanic show me how it's done. It still took 15-20 minutes to get it done. While he did the miracle job he pointed out that some of the "Celica" modules are even harder to replace requiring that the bumper has to be dismounted to replace a bulb. I guess I'm lucky by comparison. Anyway...Thats that! Live & Learn. I hope no one has to deal with a bad bulb. As for Toyota...Does it have to be so darn hard to do what use to be a snap.
#16 of 83 Did not work out for me by ck90211 Mar 16, 2007 (4:15 pm)
I tried to install a HID kit (light, ballast, transformer, etc.) into a 2007 Prius, and for some reason could not get it to work. That's after testing all electrical connections with a voltmeter and things. So I for one would raise a white flag on such project. The standard lights are not too bad, so you won't gain much visibility using HID, especially if you get the hot (blue or purple) ones.
#17 of 83 HID Retrofit! by 3screwsloose Apr 08, 2007 (8:23 pm)
There is more to it than just the headlight ass'y. My '07 pkg #6 has 'em. There is a level sensor on the rear axle. when the car is loaded down the front end rises. This may blind oncoming drivers if not compensated. Also, the quality of the reflector and lens can make a significant difference in the performance. "Non-factory" systems may not do anything more than throw a bright light - not a "true" HID system.
#18 of 83 Prius OEM HID retrofit by birger Apr 09, 2007 (2:36 am)
Hi again,   and thanks to the people who have answered the original post. Meanwhile our new Prius:     has been ordered, and will be here in a couple of weeks   However, it seems to me that some of you have not really understood what our intentions regarding HID were. What we were thinking of was - like we did on a 2000 Mercedes ML - to purchase the complete ORIGINAL Toyota HID headlight units and replace the ones on the vehicle.   On the Mercedes this worked out perfectly, even without the auto leveling sensor - we drove that vehicle for some 6 years without getting flashed by oncoming drivers.   The question was whether this would pose problems connection- or software-wise - not whether one of the various, very dubious aftermarket HID bulb adaptions would be possible.   As the delivery date is now getting very close, we'll probably for the time being make do with a set of optimized H4 headlight bulbs from a recognized manufacturer - but it would be nice to know if anyone had done the OEM swap.   TIA, Birger Replies to this message: pathstar1 (Apr 09, 2007 7:38 am)
#19 of 83 Going to rename this one by pf_flyer HOST Apr 09, 2007 (3:22 am)
Since we don't have a discussion for Prius electrical/lighting issues, I'll rename this one to use as the starting point.
#20 of 83 Re: Prius OEM HID retrofit [birger] by pathstar1 Apr 09, 2007 (7:38 am)
Replying to: birger (Apr 09, 2007 2:36 am) The HID systems draw about 1/2 the power of the halogens, so I wouldn't expect any power problems swapping in the stock HID system. You do need the level sensor to be legal (though you'd have to check on this in your country). With the stock system, I don't think it would be easy to operate it without the level sensor. It would be expensive to purchase all those parts. Perhaps finding a wreck and getting the parts off it would help. I'd estimate $2500 for each side for the headlamp assys. and ballasts. Wires would have to be added - Toyota doesn't make just one wiring harness for all the Prius. There may be software issues on the CAN bus, as I believe the HID control/ballast units "talk" to the rest of the car. So you'd need either a good Toyota tech. to do it for you or the tech manual including schematics to do it yourself.
#21 of 83 AIR CONDITIONING ISSUES - 05 PRIUS by kadensgram Apr 12, 2007 (11:28 am)
I BOUGHT MY PRIUS NEW 6-05 - PERIODICALY, HAS NOW BECOME A MAJOR ISSUE WITH THE AIR CONDITIONER THE FAN TURNS OFF. AIR CONDITIONER IS STILL ON BUT NO BLOWING COLD AIR. TOOK TO DEALER THEY TOOK IT COMPLETELY APART FOUND NO LOOSE WIRES OR PARTS. SAID THEY COULDN'T FIX WHAT THEY COULDN'T FIND BROKE, THE AIR THEN WORKED FOR 4 WEEKS. I BOUGHT THE CAR TO GO BACK AND FORTH FROM CALIFORNIA TO TRI-STATE ARIZONA. PERHAPS SOMEONE ELSE HAS THIS HAPPEN, ITS ABOUT TO GET UGLY AT THE DEALER. THANKS G.G. Replies to this message: anna_g87 (Apr 25, 2007 5:55 pm) kadensgram (Apr 26, 2007 7:39 pm)

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