I took the rear courtesy light bulb out.
12-02-18, 12:54 PM
#16
Moderator
check this thread out.
Need to open up the fuse box in the engine compartment
https://www.clublexus.com/forums/rx-...short-pin.html
Salim
Need to open up the fuse box in the engine compartment
https://www.clublexus.com/forums/rx-...short-pin.html
Salim
12-03-18, 06:22 AM
#17
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7.5A ECU-B Fuse works
Automatic Air Conditioning Works
Automatic Light Control I don't know what this is.
Combination Meter I don't know what this is.
Headlight Work
Interior Light Work
Key Reminder and Seat Belt Warning Work
Light Auto Turn Off Headlights and markers turn off when I open the door
Multiplex Communication System I don't know what this is
Power Window Work
Theft Deterrent and Door Lock Control Warning light on dash flashes, the doors lock on the key and the switch.
Wireless Door Lock Control Does not work
Automatic Air Conditioning Works
Automatic Light Control I don't know what this is.
Combination Meter I don't know what this is.
Headlight Work
Interior Light Work
Key Reminder and Seat Belt Warning Work
Light Auto Turn Off Headlights and markers turn off when I open the door
Multiplex Communication System I don't know what this is
Power Window Work
Theft Deterrent and Door Lock Control Warning light on dash flashes, the doors lock on the key and the switch.
Wireless Door Lock Control Does not work
12-03-18, 12:22 PM
#18
Moderator
Please check all fuses in the Engine compartment.
7.5A fuse in particular.
Salim
7.5A fuse in particular.
Salim
12-03-18, 12:56 PM
#19
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They have been good each time I've checked them
I've just checked all four 7.5 amp fuses in the engine room Salim
)All pass my resistance test.
The ones with voltage to one end show the same voltage at the other end.
Which of the 7.5 amp fuses do you want me to check please?
ECU B?
ALT-5?
Or D.C.C ?
I have a larger 7.5 amp fuse the holder column 2, row 4.
The holder is named D.C.C.
The box contains the word short.
What is the "Short" that should be in there please?
12-03-18, 04:17 PM
#20
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I just wanted to make sure that you checked both the cabin fuses [next to driver side left one ... in US models] and the fuses in the engine bay next to the battery.
We are at a point where you need to get an auto electrician to actually trace the harness.
Salim
We are at a point where you need to get an auto electrician to actually trace the harness.
Salim
12-04-18, 12:02 PM
#21
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I just wanted to make sure that you checked both the cabin fuses [next to driver side left one ... in US models] and the fuses in the engine bay next to the battery. Thank you Salim ) Yes, both boxes checked.
We are at a point where you need to get an auto electrician to actually trace the harness. Thank you,
You have a very good point about using an auto electrician.
Unfortunately, I won't learn anything if I go that route
I've struggled through the circuit diagrams,
it looks to me like the red lead gets it power
from the body ecu, am I correct please?
If not, where does it get it's power from please?
Salim
) Yes, both boxes checked.We are at a point where you need to get an auto electrician to actually trace the harness. Thank you,
You have a very good point about using an auto electrician.
Unfortunately, I won't learn anything if I go that route
I've struggled through the circuit diagrams,
it looks to me like the red lead gets it power
from the body ecu, am I correct please?
If not, where does it get it's power from please?
Salim
12-04-18, 01:51 PM
#22
Moderator
There is a better or a more complete circuit diagram which covers each connector and location of harness.
The problem with reading a circuit diagram is it shows connections and not necessarily the routing and the source. The terminal you are suggesting Body ECU may not be source of 12v ,,, it can be the user of 12v. The other thing is you can not look at the diagram and assume the actual wire routing is what you see. As an example the Body ECU may be drawn at the end of the B+ wire, but in actuality its location can be in the middle.
I did have an issue reading the off page connector Bubble H [H in a circle] ⭕️ and on the next page the wire color code was different.
You may like to check the 'short' wire in the engine fuse box. To me it should be 0 ohms. But we are getting into something a professional help should be sought. I am all for DIY and learning, but there comes a time to pay the proverbial piper.
Salim
Salim
The problem with reading a circuit diagram is it shows connections and not necessarily the routing and the source. The terminal you are suggesting Body ECU may not be source of 12v ,,, it can be the user of 12v. The other thing is you can not look at the diagram and assume the actual wire routing is what you see. As an example the Body ECU may be drawn at the end of the B+ wire, but in actuality its location can be in the middle.
I did have an issue reading the off page connector Bubble H [H in a circle] ⭕️ and on the next page the wire color code was different.
You may like to check the 'short' wire in the engine fuse box. To me it should be 0 ohms. But we are getting into something a professional help should be sought. I am all for DIY and learning, but there comes a time to pay the proverbial piper.
Salim
Salim
12-05-18, 02:07 AM
#23
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There is a better or a more complete circuit diagram which covers each connector and location of harness. Where will I find it please Salim )
The problem with reading a circuit diagram is it shows connections and not necessarily the routing and the source. I am not out of my depth there The terminal you are suggesting Body ECU may not be source of 12v ,,, it can be the user of 12v. True, I hoped you might know. The other thing is you can not look at the diagram and assume the actual wire routing is what you see. Not I As an example the Body ECU may be drawn at the end of the B+ wire, but in actuality its location can be in the middle. As with all schematic diagrams, and a lot of children's educational toys.
I did have an issue reading the off page connector Bubble H [H in a circle] ⭕️ and on the next page the wire color code was different. I have the same problem. I find the schematics illogical and badly annotated. My mind tends to reject illogical logic; it switches off.
Lack of page numbers when I prints the pages blinds me with rage.
You may like to check the 'short' wire in the engine fuse box. The word "short" mean a live wire contacting earth where I come from. To me it should be 0 ohms there's a 7.5 amp fuse in my box, is this correct, My meter shows 0 Ohms across it.. But we are getting into something a professional help should be sought. I speak common English so all may follow Salim, I am not out of my depth electrically yet. Note, I spelt Ohms with a capital O out of respect for Georg. I am all for DIY Not my rank and learning, but there comes a time to pay the proverbial piper. If I put the cost of the piper at one end of the seesaw, and the value of the car at the other end of the seesaw, the piper stays on the ground.
Essentially, the car's only value is summat I can learn from.
The dealer tarted up a spares or repairs trade in and sold it to me as a good 'un.
Salim
Salim
)The problem with reading a circuit diagram is it shows connections and not necessarily the routing and the source. I am not out of my depth there The terminal you are suggesting Body ECU may not be source of 12v ,,, it can be the user of 12v. True, I hoped you might know. The other thing is you can not look at the diagram and assume the actual wire routing is what you see. Not I As an example the Body ECU may be drawn at the end of the B+ wire, but in actuality its location can be in the middle. As with all schematic diagrams, and a lot of children's educational toys.
I did have an issue reading the off page connector Bubble H [H in a circle] ⭕️ and on the next page the wire color code was different. I have the same problem. I find the schematics illogical and badly annotated. My mind tends to reject illogical logic; it switches off.
Lack of page numbers when I prints the pages blinds me with rage.
You may like to check the 'short' wire in the engine fuse box. The word "short" mean a live wire contacting earth where I come from. To me it should be 0 ohms there's a 7.5 amp fuse in my box, is this correct, My meter shows 0 Ohms across it.. But we are getting into something a professional help should be sought. I speak common English so all may follow Salim, I am not out of my depth electrically yet. Note, I spelt Ohms with a capital O out of respect for Georg. I am all for DIY Not my rank and learning, but there comes a time to pay the proverbial piper. If I put the cost of the piper at one end of the seesaw, and the value of the car at the other end of the seesaw, the piper stays on the ground.
Essentially, the car's only value is summat I can learn from.
The dealer tarted up a spares or repairs trade in and sold it to me as a good 'un.
Salim
Salim
Do you know where the security ECU is shown on the circuit diagrams please Salim
)
12-05-18, 08:57 PM
#24
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There is factory service manual dedicated to electrical wiring.
Or one can subscribe to TIS. Not sure how this works overseas.
Salim
Or one can subscribe to TIS. Not sure how this works overseas.
Salim
12-06-18, 10:32 AM
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I think the sruff I senr you is what the service manual has to say Salim.
Or is there another one please.
Is this what you mean by Techsyream please?
Thanks Mike
Or is there another one please.
Is this what you mean by Techsyream please?
Thanks Mike
12-06-18, 04:56 PM
#26
Moderator
Techstream [some thing I did not mention] is hardware diagnostic tool that connects to the diagnostic port. Tech can read live information from sensors. It is essentially a PC with port to connect to OBDII and typically running windows.
TIS is a paid subscription that allows user to connect to Toyota to access various service manuals and it has a flow chart to help to drill down to area of interest. I have not used it but my reply post of 12/02 post #16 has a link and the image in there seems like it.
Answers to your questions can be found by using google.
Salim
Last edited by salimshah; 12-06-18 at 05:00 PM.
12-07-18, 12:11 PM
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How many files did you receive please Salim?
I sent you 53 megabytes on electrics
In three files.
195 pages when opened.
Thank you for giving me information about. TIS
I sent you 53 megabytes on electrics
In three files.
195 pages when opened.
Thank you for giving me information about. TIS
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