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Is it a circuit problem or a relay problem? Relay Fuse Buddy can help diagnose the case.
In-circuit bypass switch controls power downstream of the relay.
Displays live circuit current - 20 Amps continuous - 30 Amps momentary
Turn on and off DC motors, fuel injectors, fuel pumps and see the amp draw
Wide coverage - includes adapters for 6 different relays
Relay Fuse Buddy helps diagnose circuit problems faster. Make one simple connection and you control power dowstream of the relay for testing purposes.