Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
Car Electrics: If there is a PD of +12V, shouldn't it trigger a relay
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="tamrat" data-source="post: 459032" data-attributes="member: 29874"><p>Yes. I did this. I'm definitely sure I didn't mess up the wiring since I also tested this with the hazard switch. The hazard switch has 4 cables. All pins are at 0V except for one which is always +12V (with a multimeter: positive probe on the pins, negative probe on body ground). This +12V line also drops to 0V when the hazard switch is activated. Tried to get power from this cable, connected it to 86. Grounded 85. Nothing. Relay doesn't click. But the hazards come on. Its like the circuit was deprived of -12V (negative: body ground). And rather than flowing from 86 to 85, its like feeding -ve power from 85 to 86.</p><p></p><p>I have attached the diagram of the circuit I built below.</p><p></p><p>[ATTACH]9053[/ATTACH]</p><p></p><p>Additionally here is the official EWD from Toyota.</p><p></p><p>[ATTACH]9054[/ATTACH]</p></blockquote><p></p>
[QUOTE="tamrat, post: 459032, member: 29874"] Yes. I did this. I'm definitely sure I didn't mess up the wiring since I also tested this with the hazard switch. The hazard switch has 4 cables. All pins are at 0V except for one which is always +12V (with a multimeter: positive probe on the pins, negative probe on body ground). This +12V line also drops to 0V when the hazard switch is activated. Tried to get power from this cable, connected it to 86. Grounded 85. Nothing. Relay doesn't click. But the hazards come on. Its like the circuit was deprived of -12V (negative: body ground). And rather than flowing from 86 to 85, its like feeding -ve power from 85 to 86. I have attached the diagram of the circuit I built below. [ATTACH]9053._xfImport[/ATTACH] Additionally here is the official EWD from Toyota. [ATTACH]9054._xfImport[/ATTACH] [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
Car Electrics: If there is a PD of +12V, shouldn't it trigger a relay
Top