Main Relay Problem: How do I check for continuity between terminals?
09-27-2005, 07:31 PM
#1
Main Relay Problem: How do I check for continuity between terminals?
I found instructions on how to test a main relay at:
http://autorepair.about.com/cs...c.htm
But how do you check for continuity between terminals? Do you use a test light? Do you clip the aligator clip to one terminal and touch the pointed tip of the test light to the other terminal?
What do you use to connect a jumper wire to the battery? Do you use wire with an aligator clip on each end to connect the main relay to the battery?
http://nbox00.tripod.com
http://autorepair.about.com/cs...c.htm
But how do you check for continuity between terminals? Do you use a test light? Do you clip the aligator clip to one terminal and touch the pointed tip of the test light to the other terminal?
What do you use to connect a jumper wire to the battery? Do you use wire with an aligator clip on each end to connect the main relay to the battery?
http://nbox00.tripod.com
09-28-2005, 03:57 AM
#2
Re: Main Relay Problem: How do I check for continuity between terminals? (nonbox)
Use the continuity function of a multi-meter. Or use the resistance function. "Continuity" means relatively low resistance. Non-continuity will show infinite resistance or overload or however your meter display that.
A jumper wire to the battery is simply a wire. You can be creative about how you connect it. Alligator clips work good. Simply touching the wires together works too, but you need a couple sets of hands.
A jumper wire to the battery is simply a wire. You can be creative about how you connect it. Alligator clips work good. Simply touching the wires together works too, but you need a couple sets of hands.
09-28-2005, 07:26 PM
#3
Re: Main Relay Problem: How do I check for continuity between terminals? (nonbox)
JimBlake, Thank you for all the info. What is considered a low resistance reading?
http://nbox00.tripod.com
Modified by nonbox at 4:46 AM 9/29/2005
http://nbox00.tripod.com
Modified by nonbox at 4:46 AM 9/29/2005
09-29-2005, 05:05 AM
#4
Re: Main Relay Problem: How do I check for continuity between terminals? (nonbox)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonbox »</TD></TR><TR><TD CLASS="quote">JimBlake, Thank you for all the info. What is considered a low resistance reading?</TD></TR></TABLE>A couple ohms. Usually the meter will read k-ohms, which it x1000.
Another thing... Honda main relays have a common problem with cracked solder joints. Snap the case open & look at the solder joints with a magnifying glass. Small cracks aren't good. But sometimes they measure OK on the workbench but the cracks open back up when you install it back in the car. That can make it a PITA to figure out.
Another thing... Honda main relays have a common problem with cracked solder joints. Snap the case open & look at the solder joints with a magnifying glass. Small cracks aren't good. But sometimes they measure OK on the workbench but the cracks open back up when you install it back in the car. That can make it a PITA to figure out.
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