by playasyougo » Tue May 19, 2015 3:19 pm, Post I'm currently having an issue of voltage ranging from ~11v-14v because Honda wants to save gas mileage and shit. by Hondata » Wed Apr 16, 2014 2:27 pm, Post Adding another thing here, I just read up on FlashPro and it seems that you can disable the fuel economy alternator control which seems to be the biggest issue that I'm facing here because it is making the alternator go into a eco mode and once the ac or something is turned on it will crank out 14v but then drop back down to eco mode and stay at ~12v. This thread is archived . Even though Honda has used the Electronic Load Detection (ELD) System since 1988 on the Civic and 1990 on the Accord, there is still a lot of confusion on how this system operates and controls the charging system. Post by randomman02x » Wed Sep 23, 2020 6:58 pm, Post Top. Help? The most important thing to remember when testing the charging system is to be sure to add an electrical load (such as headlights). by MacLotus » Sun Apr 20, 2014 12:53 pm, Post As such, the Lotus has no ELD. by Spunkster » Fri Apr 11, 2014 2:36 pm, Post On the signal wire, the ECM will send a reference voltage of approximately 4.5 to 5 volts to the ELD unit. Another option is to try installing an Honda ELD. The most important thing to remember when testing the charging system is to be sure to add an electrical load (such as headlights). by shanebadoo » Fri Apr 17, 2015 2:51 pm, Post Cruiseman shows you how to disable the factory TPMS lamp on a 2012 Honda Goldwing. Sort by. Since the early ’90s, Honda vehicles have used an electrical load detector (ELD) unit in the under-hood fuse/relay box. Voltage sometimes was variating from 14 to 12v. Asian: Diagnosing Acura RDX Turbo System Problems, Sponsored Content: Know Your Engine When Determining Spark Plug Service Intervals, Products: LBM Autoparts Offers BMW Front Differential Repair Kit, Products: LIQUI MOLY Introduces DIJectron, News: Virtual AAPEX Experience Adds More Training To Schedule, How Iridium Spark Plugs Have Evolved with Engine Technology. Stay up to date with the latest Import Car news. Post by Spunkster » Fri Apr 11, 2014 9:36 pm. With no or little current flow through the ELD, the ECM will see approximately 3.5 volts on the signal wire. The ELD unit, located in the underhood fuse box, must sense current flow through the fuse box so it can correctly indicate the electrical load on the vehicle to the ECM. Before performing any tests on the charging system, be sure to put an electrical load on the vehicle electrical system by turning on the headlights or turning on the blower motor or rear defogger. Also note I have no stereo system, AC, or other power hog devices. Checked my Rywire loom and no B18 pin or wiring going to the B plug. WARNING! When the vehicle is first started, the alternator may not begin charging for up to three minutes. Post I have a K24A2 w/K20 wiring harness and K-Pro ECU installed in my Lotus Elise. At this time, the ECM can ground the control wire at the alternator and the voltage regulator will turn off the alternator without illuminating the charge light. ↳ Civic Si 2012-2015 US/Canadian / 2013+ ILX, ↳ General / Traction Control Manager Software, Dropping Alternator Charge Voltage - ELD Enable/Disable, Re: Dropping Alternator Charge Voltage - ELD Enable/Disable. by Hondata » Tue Apr 22, 2014 7:50 am, Post If the current flow is high, the voltage on the signal wire will be close to 1 volt. Idle is fine and low rpm driving is stable and high (13.9), but under heavy accel, voltage drops tp 12.9-13.1. Will Hondata FlashPro Accord 2013-2015 US L4 (CARB) disable ELD on my 2013 Accord L4 and make the alternator produce a steady ~14v or is it just deleting codes from the modules and cluster? The ELD input only provides an idle up for the engine. best. In brief: Thanks for your response. Any recommendations? ELD can be disabled using the CARB FlashPro, but I canto tell you if it will give you the desired result. by MacLotus » Mon Apr 21, 2014 6:18 am, Post Any update to this? … Much appreciated. Spunkster Site Admin Posts: 19256 Joined: Sat Sep 21, 2002 12:06 am Location: Hondata. The ECU does not control ALTL (from the ALT), but rather uses the data for logging/cel, and passes it on to the light. ↳ Civic Si 2012-2015 US/Canadian / 2013+ ILX, ↳ General / Traction Control Manager Software. share. by Spunkster » Wed Apr 15, 2015 11:38 am, Post Another mechanic said that it is very easy and he can do it. The ECM will then see a high electrical load and stop grounding the control wire so the voltage regulator will allow the alternator to charge. Any advice or insight to my problem? level 1. Honda’s answer to this is the ELD (Electrical Load Detector). 3 comments. I have seen same issue in about 3 k swapped civics/integra. by MacLotus » Wed Apr 16, 2014 12:41 pm, Post Thanks Spunkster. Any help would be appreciated. 8,206 Posts #5 • Jul 23, 2015. That said, you might have an old-type harness where the AltL output directly tied to the negative side of the charge light (old school... which I prefer by the way). I want to completely disable my Honda Accord car alarm from 2003. by b16itb » Wed Apr 23, 2014 10:55 am, Post by randomman02x » Wed Sep 23, 2020 10:24 pm, Post Re: Dropping Alternator Charge Voltage - ELD Enable/Disable . 100% Upvoted. by Hondata » Sun Apr 20, 2014 6:25 pm, Post I'm not worried about losing gas mileage and am fully aware that this is a side effect of disabling ELD. I have used the manual for troubleshooting, but then I have an aftermarket modified ECU. This unit reads the amperage load directly from the battery and in-turn sends a varied voltage signal to the PCM which regulates the field signal to the alternator. Charge harness was self made. 2013 Honda Accord ELD Disable. Different Nameplates, Different Expectations, Engine Build: Evo Wagon – Turbocharged Evo 9 Engine, Cartridge (Gen 1) Wheel Bearing Installation, Limited-Slip Differentials And Diagnostics, Know Your Engine When Determining Spark Plug Service Intervals, LBM Autoparts Offers BMW Front Differential Repair Kit, Virtual AAPEX Experience Adds More Training To Schedule, Check the PCV Valve If You Suspect Oil Fouling. The ELD system inputs the electrical load to the engine control module (ECM), then the ECM controls the output of the alternator under various electrical loads, and is capable of completely shutting the alternator off under very low or no-load situations. Try the ECU in a non-swapped chassis and see if the voltage drops.