Trouble Code List
Code 1: Ensure that the Relay Selector Switch is set properly. Double check the number of pins of the Relay you are testing.
If this is a 5 pin Relay, slide the Relay selector to “5 pin” and re-start the test. If this is a 4 pin Relay, slide the Relay selector to “4 pin” and
re-start the test. If you are testing a 5 pin Relay and Code 1 persists, then the relay is not making a connection between the 30 and 87a
terminals when the Relay is not powered. This alerts you to “burnt” or “pitted” contacts. This Relay will need to be replaced and the
vehicles circuit will need to be checked to ensure that it does not have an abnormally high Current (Amperage) draw or a blown fuse
within the circuit that contains terminals 30 and 87a.
Code 2: Terminal 30 is closed to Terminal 87 when the Relay is not powered. Terminals 30 and 87 should only be
connected when the Relay is turned on (while the coil is energized). This is the code you will get for “stuck” or “welded” contacts. This
Relay will need to be replaced and the vehicles circuit will need to be checked to ensure that it does not have an abnormally high Current
(Amperage) draw or a blown fuse within the circuit that contains terminals 30 and 87.
Code 3: Terminal 30 is not closing to Terminal 87 when the Relay is powered. First, ensure you are using a 24 Volt source
if you are testing a 24 Volt Relay. For a 4 or 5 Pin Relay, if you do not hear the Relay “clicking” during the testing, then the Relay coil is
defective. If the coil is defective make sure that this Relay is the proper one specified for the application and in particular, is the Coil
Voltage Rating correct for the application – i.e. is this a 12V Relay being used in a 24V application?
If you do hear the Relay “clicking” during the testing, then terminals 30 and 87 are not making a connection when the Relay is powered.
This alerts you to “burnt” or “pitted” contacts. This Relay will need to be replaced and the vehicles circuit will need to be checked to ensure
that it does not have an abnormally high Current (Amperage) draw or a blown fuse within the circuit that contains terminals 30 and 87.
Notice_________________________________________________________________________________________
After testing is finished, do not touch legs of the end piece or adapter legs with hands/fingers for at least 5 minutes as they can become
hot during testing.
Warranty Information
This product is warranted to be free from defects for one year. If this product fails during the first 12 months due to faulty materials or
workmanship, it will be repaired or replaced free of charge, at the discretion of the manufacturer.
NOTE: This one year warranty does not cover dead batteries and blown fuses.
For warranty and service coverage, please return this product to your Matco dealer for processing and evaluation. OR, return it directly to:
Electronic Specialties, Inc.
139 Elizabeth Ln.
Genoa City, WI 53128
262-279-1400 Fax 262-279-1300
WWW.ESITEST.COM
Defective units being returned to your dealer or to the factory should include proof of purchase date.
Any testers that do not function due to misuse or abuse will be subject to “out of warranty service charges.
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