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The interface from the Combination Meter Assembly to the actual lamps is solid state, I would think most likely MOSFETs. By the way, The clicking you hear from the turn signal is not coming from a relay, it's coming from the buzzer in the Combination Meter Assembly.
 

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Discussion Starter · #6 ·
The interface from the Combination Meter Assembly to the actual lamps is solid state, I would think most likely MOSFETs. By the way, The clicking you hear from the turn signal is not coming from a relay, it's coming from the buzzer in the Combination Meter Assembly.
Makes sense to use power mosfets. Yes, I see from the schematic that the click is done with a "buzzer." Was thinking of wig-wagging the turn signals for a hazard vehicle while parked. Might be just as easy to tie in to the L/R switch to do it. That's a simple and safe pull to ground. Thanks again.
 

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Works perfectly! Thanks to whipaway for the el. diagrams.

I have added two cables.
- One (positive) between ECM pin 40 (blue cable was already there but I don’t know where it ends) and steering wheel spiral pin no 1.
- Second (negative) from steering wheel spiral pin no 2 to ground.

Dashboard lights works as well.
 

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Works perfectly! Thanks to whipaway for the el. diagrams.

I have added two cables.
- One (positive) between ECM pin 40 (blue cable was already there but I don’t know where it ends) and steering wheel spiral pin no 1.
- Second (negative) from steering wheel spiral pin no 2 to ground.

Dashboard lights works as well.
Hi, searching the internet I found this information, it is very graphic but we must check it ...

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Looking for electrical schematic showing the dash lights / dimmer circuit for my 2015 Limited. Time to re-engineer the dash lights so they are on all the time.

Whipaway????????
 

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Thank you............especially for your quick response..........
I'm new in the forum and already see the value in being a member.
 

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Thank you............especially for your quick response..........
I'm new in the forum and already see the value in being a member.
Welcome to the forum.
I think you will find a lot of good people willing to help you here, and lots of great info also.
 

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I would really like to have a look at the diagram for the odometer and speedometer wiring for my 2015 RAV4 LE. I expect that there will be some kind of Hall effect or optical sensor on the output shaft feeding both the odometer and speedometer.

I would like to find out if the pulses from the sensor go into the ECU and through CAN bus to the speedometer, or if the sensor feeds the odometer and speedometer directly.

I need to do more testing, but it looks like my new speedometer is reading about 6.5% too high, and the Toyota service guy says that's inside their "don't care" zone. On a nine-mile highway test, my odometer was about 3% high.

It would be great if the dealer would calibrate the speedometer, but I may have to fix it myself. My tentative fix is to put a small 8-pin microcontroller between the sensor and the speedometer, get the microseconds between input pulses, add 6.5% and send new pulses to the speedometer. This obviously depends on just how these work, so I have to gather information first.

Any information appreciated! Thanks.
 

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Hi Kotrad, can you share me the details how you were able to successully install your CC. Appreciate also if theres a picture on where you tap the wires at the ECM or anything that would help me to make mine work.

I already connected my CC but got no power. Mine is Rav4 2013.

Thanks
 

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Sorry to bump such an old thread, but a need the electrical diagrams for me to wire my cruise control just like Kotrad did.
 
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