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Tests both 12V and 24V relays 3 diagnostic trouble codes help define the cause of the bad relay Quick off-the-car relay tester Checks relay coil & switch contacts Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
Tests both 12V and 24V relays 3 diagnostic trouble codes help define the cause of the bad relay Quick off-the-car relay tester Checks relay coil & switch contacts Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code