OBD Port Tester

TDB014 OBD Port Tester The OBD Port Tester connects to a vehicle?s OBDII / EOBD connector and lets you easily diagnose electrical faults. • Instantly check power and ground circuits • Identify communication link protocols • Constantly monitor Battery Voltage with display LEDs Activity: RED LED's (Pin 16) - automatically turn-on as soon as you plugg into DLC. RED LED's turn dim when: • Low battery voltage - refer to Voltmeter and alarm will beep (below 12V) • Wiring to DLC pin 16 is faulty • Grounds circuits has resistance issues GREEN LED's (Pins 4 and 5) - automatically turn-on as soon as you plugged into DLC. BLUE LED's (Pins 2, 6, 7 and 10) - LEDs should flash when serial data voltage pulses are present in the data line. Blue LEDs is assigned on pins 2, 6, 7 and 10 to indicate communication with scan tool or interface and for communication protocol identification. LED will turn-on depending on your vehicle model. For some vehicle models, none or multiple blue LEDs will tur