sh0rtlife
01-23-2022, 05:13 PM
ok so i know this is a VERY common issue and there are a ton of fixes out there most of them dont exist or are 20$+ and up and up....
that said i put hid's on my wifes 07, and found, sure enough the high beam indication doesnt light tho the highs do indeed work
knowing its a simple ecu "i dont see voltage being used" type of thing i went and ran thru some simple tests. starting with plugging in an h4 bulb on the unused right side harness, and yes the dash lit up
tested a 194(dash and marker bulb) and initialy i thought id failed, but then found you dont plug it into the HIGH beam side you plug it into the LOW side, and it lit the dash
test and re-test and its without fault
so knowing this, i looked up the 194's specs, roughly 4watt @50 ohm
i went digging thru my resistor stash and started tossing resistors at it and didnt need much, in fact i used what i "think" are a pair of .43k ohm, in parallel by just twisting the ends together and stuffing it into the socket, sure enough the dash lights up
anyone whos played with led's likely has the resistors laying around, or...enough of them to re-produce the same fix at zero cost
the resistors i used were tiny blue ones with 5 stripes yellow, red, black, black, red
hope this helps everyone, i suspect it will work on other years and makes, since i doubt toyota changed how the system senses stuff
that said i put hid's on my wifes 07, and found, sure enough the high beam indication doesnt light tho the highs do indeed work
knowing its a simple ecu "i dont see voltage being used" type of thing i went and ran thru some simple tests. starting with plugging in an h4 bulb on the unused right side harness, and yes the dash lit up
tested a 194(dash and marker bulb) and initialy i thought id failed, but then found you dont plug it into the HIGH beam side you plug it into the LOW side, and it lit the dash
test and re-test and its without fault
so knowing this, i looked up the 194's specs, roughly 4watt @50 ohm
i went digging thru my resistor stash and started tossing resistors at it and didnt need much, in fact i used what i "think" are a pair of .43k ohm, in parallel by just twisting the ends together and stuffing it into the socket, sure enough the dash lights up
anyone whos played with led's likely has the resistors laying around, or...enough of them to re-produce the same fix at zero cost
the resistors i used were tiny blue ones with 5 stripes yellow, red, black, black, red
hope this helps everyone, i suspect it will work on other years and makes, since i doubt toyota changed how the system senses stuff