CAN Test Box
At first glance, the need for a breakout box may not be apparent as you can probe the OBD connector terminals quite easily to measure the values present on each of the 16 pins. However, the 16-pin BOB comes into its own when we start looking at speed, accuracy and security, which is essential during any diagnosis.
Simply connect the 16-pin BOB to the OBD connector and you can immediately confirm the presence of battery voltage and vehicle ground. This is thanks to the illuminated LEDs around the respective 4 mm banana sockets for pins 16 and 4. We can now instantly confirm that power and ground are present at the OBD connector and our 16-pin BOB can now provide additional information on the status of the remaining OBD terminals.
Description
Depending on the age and style of the vehicle, LEDs 6 and 14 may be flashing to indicate activity on both CAN Hi and CAN Lo circuits along with LED 5, to confirm the presence of signal ground for several power unit sensors.
At this stage, no additional test equipment has been installed and yet we have gathered a wealth of diagnostic information. To monitor the signals present on any terminal of the OBD connector, the 4 mm banana sockets on the BOB allow for secure connection of PicoScope probes that will remain connected during road testing or wiggle testing of the wiring harness.
16 Pin CAN Test Box
The CAN Test Box gives you easy access to the 16 pins of the diagnostic connector that is fitted to all modern vehicles. Depending on the configuration of the vehicle, this may allow you to check power, ground and CAN Bus signal quality. With the test adaptors supplied you can connect your PicoScope automotive scope, or any other suitable scope, to the CAN Test Box to monitor any signals present, such as the CAN High and Low signals.
The CAN Test Box 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
- Connect an oscilloscope for signal capture and collection of signal waveform data
- Compatible with both 12V and 24V vehicles
