Connect, Detect, Monitor Voltage and More
The new DLC Breakout Box (J-51513) has been designated an Essential Tool which can be used as an extension to the Data Link Connector for diagnosing electrical faults and CAN bus line activity. Plug the DLC Breakout Box into the vehicle DLC connector and perform all voltage, resistance and continuity testing directly from the provided pin-outs.
Check power and ground circuits, check active protocol lines, or connect a multi-meter or oscilloscope for detailed signal analysis.You won’t have to back probe the Data Link Connector (DLC) any longer as the DLC Breakout Box connects between the DLC and a DVOM for an accurate way to:
- Receive alarm warning when voltage drops below 11.6 V or rises above 15.2 V
- Connect leads for increased diagnosis, analysis, and monitoring
- See LEDs at pin-out display signal detection
- Check power and ground circuits
Other useful functions of the DLC Breakout Box include:
- Verifying ECU activity: flashing LEDs indicate ECU activity
- Monitoring of OBD II data lines
- Probing lines with scope or multi-meter for detailed signal information
- Checking and monitoring battery voltage: continuous numeric display of voltage
Leads are included with the tool. One lead has a momentary closure switch. Always use the switched lead on the power circuit.
NOTE: For best results, use a high-quality, low-impedance, digital volt ohmmeter. If the tool is beeping, the vehicle voltage is below 11.6 V or above 15.2 V. LED activity is not an indicator of circuit integrity. LED activity is for reference only.
Use the DLC Breakout Box to check normal voltage on the CAN HIGH CIRCUIT:
- Plug in the DLC Breakout Box to the DLC connector of the vehicle.
- Hook the negative black meter lead to pin No. 4 and the positive red meter lead to pin No. 6.
- Place your voltmeter on Volts DC.
- With the vehicle ON or engine running, check the voltage on the voltmeter of the CAN measure High and compare it to the specification in NTB10-066a or ITB10-029a.
Use the DLC Breakout Box to check normal voltage on the CAN LOW CIRCUIT:
- Plug in the DLC Breakout Box to the DLC connector of the vehicle.
- Hook the negative black meter lead to pin No. 4 and the positive red meter lead to pin No. 14.
- Place your voltmeter on Volts DC.
- With the vehicle ON or engine running, check the voltage at the voltmeter of the CAN measure Low and compare it to the specification in NTB10-066a or ITB10-029a.
To check normal voltage of CAN RESISTANCE using the DLC Breakout Box:
- Plug in the DLC Breakout Box to the DLC connector of the vehicle and disconnect the negative battery cable from the battery.
- Hook the negative black meter lead to pin No. 14 and the positive red meter lead to pin No. 6.
- Place the DVOM on Ohms.
- Check the normal CAN measure resistance and compare it to the specification found in NTB10-066a or ITB10-029a.
IMPORTANT NOTES
- Do Not rely on the LED array for diagnostics as it will act differently on different model vehicles.
- Nissan Does Not recommend connecting the C-III plus to this tool. The tool currently does not support all functions, i.e., reprogramming.
- Do Not jumper the battery power pin-out to either of the ground pin-outs. Damage may occur to the tool.
Refer to the TSBs in ASIST for more information on the use of the DLC Breakout Box tool (J-51513). View some DLC Breakout Box connectivity videos on the TechTalk Mobi site or in the Nissan Virtual Academy Garage.
