I need to know which circuits (fuses) are monitored by the ELD. The only information I can find in the factory service manual is shown below in the charging system circuit diagram. This shows only fuse No. 33 (50A) running through the ELD. Does anyone know of any other fuses (circuits) in the under-hood fuse/relay box (also shown below) which run through the ELD?


Charging Circuit Diagram


Power Distribution in Under Hood fuse/relay box

Thanks,
Dave

 

As far as I know, the ELD monitors electrical load in general and makes a decision to / not to enable high-output mode on the alternator.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GimpyAccord &raquo;</TD></TR><TR><TD CLASS="quote">As far as I know, the ELD monitors electrical load in general and makes a decision to / not to enable high-output mode on the alternator.</TD></TR></TABLE>

This is why I need to know which circuits are monitored by the ELD.

Thanks,
Dave

 

i dont have my stuff here in front of me, but as far as i can remember the eld just monitors the main 50a fuse for load..

you dont really need the eld, if you use anything becides a honda ecu it dosnt do anything either way.

 

what is ELD?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzCivic1.6 &raquo;</TD></TR><TR><TD CLASS="quote">what is ELD?</TD></TR></TABLE>

ELD stands for "Electrical Load Detector". It's basically an amp meter monitored by the ECU, (engine control unit, aka ECM, engine control module) to control idle speed during heavy electrical loads. Others with a more descriptive explanation feel free to chime in.

Dave

 

ah i see, thanks for the explanation.

 

It tells the alternator to provide high current, but only when needed. Headlights, window defroster, stuff like that requires lots of current, and it senses when those are on. The rest of the time it tells the alternator to provide just enough curren for the ECU and ignition.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kb58 &raquo;</TD></TR><TR><TD CLASS="quote">It tells the alternator to provide high current, but only when needed. Headlights, window defroster, stuff like that requires lots of current, and it senses when those are on. The rest of the time it tells the alternator to provide just enough curren for the ECU and ignition.</TD></TR></TABLE>

There is no connection between the ELD and alternator, so I don't see how this works. Can you explain it in more detail?

Thanks,
Dave

 

the alternator has a wire that goes to the ecu. and the ecu gets a signal from the eld. thats how the eld tells the alternator to provide high amperage.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kulrevon &raquo;</TD></TR><TR><TD CLASS="quote">the alternator has a wire that goes to the ecu. and the ecu gets a signal from the eld. thats how the eld tells the alternator to provide high amperage.</TD></TR></TABLE>

There are actually 2 wires from the alternator to the ECU, ALTC and ALTF. Which one is controlling the output current? How does this work in conjunction with the voltage regulator?

Thanks,
Dave