I decided to check the relays, and 5 of them don't pass the tester test. Is it possible for them to be working and almost ready to fail? The Van runs.

Make sure you are correctly placing the 4/5 pin switch prior to the test. If not placed correctly, the test will fail. Also, double check the schematic on the relay against the schematic pictured in the instructions manual. If pins 85 and 86 of the test relay are switched, Relay Buddy does not test this type of relay and will indicate fail. Check to see this is not the case. Otherwise, it should never fail a relay that can properly switch. Please call our service tech at 800-2271-1603 x110 for additional help.

Does this work on 2 prong relays

No, it works on 4 and 5 pin relays.

does this unit come with a case?

Yes, it comes with a zippered storage case.

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⚡ Diagnose with confidence, drive with certainty!

RAPID ON CAR TESTING - Get instant relay health checks without removing parts
LOADED CONTACT TESTING - Detects excessive resistance for reliable diagnostics
POWERED BY YOUR VEHICLE - Uses your car’s 12V battery—no extra power source required
VERSATILE COMPATIBILITY - Supports 4 and 5 pin relays covering majority of automotive needs
AUTOMATIC PASS FAIL INDICATOR - Red LED flags faulty relays—no guesswork needed

The Electronic Specialties 190 Relay Buddy is a compact, quick-connect automotive relay tester that uses your vehicle’s 12V battery to automatically test and diagnose 3-pin, 4-pin, and 5-pin relays. Featuring a clear pass/fail LED indicator and loaded contact testing, it ensures precise detection of relay coil and contact issues right on the car, saving time and preventing costly downtime.

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Connector Type	Quick Connect
Contact Material	Silver
Contact Type	Normally Open
Mounting Type	DIN Rail Mount
Brand	Relay Buddy
Operation Mode	Manual
Coil Voltage	12 Volts
Maximum Switching Voltage	12 Volts
Minimum Switching Voltage	12 Volts
Number of Terminals	3
UPC	971472622871 001910670635 799621108355 855174001700
Manufacturer	Electronic Specialties
Item model number	190
Product Dimensions	17.78 x 12.7 x 7.62 cm; 226.8 g
ASIN	B0054WGSD2

Electronic Specialties 190 Relay Buddy Automotive Relay Tester

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