Mods if you think this should go into 'Little Things' instead of a separate post please feel free to move. There are a lot of posts about the sensors but not a 'how to disable' thread so I thought I would start one.
A lot of us seem to have the reversing sensors fitted and I guess most of us have had enough of the device screaming when you fit a trailer or bike rack on the back. I spoke with Mr Toyota when I bought the car to see why there wasn't a cut out like Holden and Ford and others do and was told that this could only be fitted at the factory. Rubbish but anyway I gave up but still complained at the noise.
D4D mentioned the NARVA connectors with reed switch in another post though he has yet to fit one and also Corey has fitted a system to allow him to switch the sensors off when he needs to.
I bought a NARVA 82043BL 7 pin flat socket with Reed switch last week and put it on this morning in about half an hour. Very easy job with a blood pressure lowering result.
The socket I bought has the normally closed reed switch. That is the circuit is continuous unless the socket is opened and a plug inserted then the circuit is interrupted.
This is the socket in its packaging. Cost was $26 from REPCO Enoggera.
As you can see it is almost identical to the genuine part only the two extra terminals are different.
You can wire one side of the reed switch to earth and then use the other terminal for your earth supply to the reversing sensors module but I decided to run a paired cable and simply interrupt the existing earth. For this I had some left over speaker cable in the bits box. You will need about 1300mm of wire, I ran things a little close and didn't need to cut any excess off.
As you can see here I simply ran the two ends to the extra terminals.
I ran the cable alongside the trailer cable and covered it all in plastic spiral wrap to protect it.
At the left hand side of the car you will find where the cable from the sensors goes up into the pocket where the jack is kept.
I pulled the grommet out and with some wire encouraged the cable to go through the grommet with the existing wiring. A little silicon seals it all up.
This is the plug that I selected to connect to. Be careful as the pins come out of the plug quite easily and the pins are really pretty fragile. If you accidentally break off the locating tabs on the pins they won't lock into the plug properly.
All I did was cut the earth cable and join both sides of the cut to each end of the speaker cable running up from the trailer socket. When the socket is closed the earth signal is continuous. From the earth through the trailer socket and back to the connector. When the socket is open the circuit is broken and the sensor unit is not earthed and does not operate. I soldered and heat shrank the joints but as I know there are those who don't like soldering you can also just use a crimp connector.
A little insulation tape over the heat shrink to hold it all together neatly.
Once it is all tidied up the area looks just like a bought one.
From start to finish about half an hour and the satisfaction of not being screamed at
PRICELESS!
A lot of us seem to have the reversing sensors fitted and I guess most of us have had enough of the device screaming when you fit a trailer or bike rack on the back. I spoke with Mr Toyota when I bought the car to see why there wasn't a cut out like Holden and Ford and others do and was told that this could only be fitted at the factory. Rubbish but anyway I gave up but still complained at the noise.
D4D mentioned the NARVA connectors with reed switch in another post though he has yet to fit one and also Corey has fitted a system to allow him to switch the sensors off when he needs to.
I bought a NARVA 82043BL 7 pin flat socket with Reed switch last week and put it on this morning in about half an hour. Very easy job with a blood pressure lowering result.
The socket I bought has the normally closed reed switch. That is the circuit is continuous unless the socket is opened and a plug inserted then the circuit is interrupted.
This is the socket in its packaging. Cost was $26 from REPCO Enoggera.
As you can see it is almost identical to the genuine part only the two extra terminals are different.
You can wire one side of the reed switch to earth and then use the other terminal for your earth supply to the reversing sensors module but I decided to run a paired cable and simply interrupt the existing earth. For this I had some left over speaker cable in the bits box. You will need about 1300mm of wire, I ran things a little close and didn't need to cut any excess off.
As you can see here I simply ran the two ends to the extra terminals.
I ran the cable alongside the trailer cable and covered it all in plastic spiral wrap to protect it.
At the left hand side of the car you will find where the cable from the sensors goes up into the pocket where the jack is kept.
I pulled the grommet out and with some wire encouraged the cable to go through the grommet with the existing wiring. A little silicon seals it all up.
This is the plug that I selected to connect to. Be careful as the pins come out of the plug quite easily and the pins are really pretty fragile. If you accidentally break off the locating tabs on the pins they won't lock into the plug properly.
All I did was cut the earth cable and join both sides of the cut to each end of the speaker cable running up from the trailer socket. When the socket is closed the earth signal is continuous. From the earth through the trailer socket and back to the connector. When the socket is open the circuit is broken and the sensor unit is not earthed and does not operate. I soldered and heat shrank the joints but as I know there are those who don't like soldering you can also just use a crimp connector.
A little insulation tape over the heat shrink to hold it all together neatly.
Once it is all tidied up the area looks just like a bought one.
From start to finish about half an hour and the satisfaction of not being screamed at
PRICELESS!
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