TDB014 – OBD PORT TESTER by The Diagnostic Box

TECHNICAL DETAILS

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

LED ACTIVITY

RED LED’s

(Pin 16) – automatically turn-on as soon as you plugged 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. Ground LEDs (Pin 4 and 5) is connected to battery voltage through pin 16. Therefore, a ground supply on pin 4 will not affect LED 5. A dim single green LED will indicate a circuit problem with the circuit.

BLUE LED’s

(Pins 2, 6, 7 and 10) – LED’s 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. It will turn-on depending on your vehicle model. For some vehicle models, none or multiple blue LEDs will turn-on as soon as the OBD Port Tester is connected and you start the ignition.

YELLOW LEDs

(Pins 1, 3, 8, 9, 11, 12, and 13) – it should flash when your vehicle manufacturer uses either one of the pins for any function.