OBD-2 DLC Health Checker

(Mr BOB DLC Version-2)

The OBD-2 DLC Health Checker also Version-2 of our Mr. BOB DLC is a dedicated OBD-2 DLC (Data Link Connector) analyzer tool. This is the go to tool whenever you're faced with a "No Communications" CODE. It is also "The Tool" to analyze issues with your vehicle's Power and Ground, since you have both Chassis and Sensor Ground at the DLC connector. Even if you're diagnosing a vehicle with a network "GATEWAY", then all you do is connect the GATEWAY-BYPASS CABLE (not included) as you would do with any scanner. See the rest of this website to see what it's all about.

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OBD-2 DLC Health Checker diagnostic tool

(Includes Software-UPDATES, all cables, e-Manual, cables, touch-screen-stylus-pen and carrying-pouch)
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MSRP $545.00                      $395.00 Sale-
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OBD 2 health checker       
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What is the OBD-2 DLC Health Checker?

The OBD-2 DLC health Checker is a handheld standalone tool. It is it's own computer with graphing voltmeter screen. It is also version-2 of our previous Mr BOB DLC, which was a PC Based tool still found here on this website. The Health Checker has a few built-in pre-programmed test functions detailed below. It is also the only tool on the marker that has two "Secret Weapon Killer Features", which are the CAN-Network 120 Ohm termination resistor and the CAN voltage injection feature.

What are the 2 killer features about?

CAN-Network 120 Ohm termination resistor. All CAN Networks need two 120 Ohm termination resistors. Why? Because the network needs to voltage drop its signal against some resistance value. So, 120 Ohm was chosen for CAN networks. These 2 resistors are often found in the Dash module and the ECM. A common problem is loss of the termination resistor, due to a Dash or ECM issue. These 2 resistors can be located in any of the modules, so the OBD-2 Health Checker can insert such a resistor, found inside the tool itself, at the click on a button. And at the same time, you can watch the tool's graphing screen and determine if you have a CAN signal back on.

CAN voltage injection feature. Together with the 120 Ohm termination resistors, the CAN network also needs 5 volts. The network actually operates by splitting the 5 volt signal in half and toggling the voltage between 2.5V and 3.5V for CAN High and between 2.5V and 1.5V for CAN low. The Health Checker can inject the 5 volts if it's missing, which often comes from the ECM, but not always. Regardless of where the termination resistors and the 5 volts comes from, this tool will place these two into the network. If at that time the network comes alive, then it's just a matter of finding which module provides what and repairing or replacing the part, but NO MORE SWAPPING for NOTHING.

What are the features of the OBD-2 DLC Health Checker?

  • 12 Volt Cranking Analysis with test PASS/FAIL result and Cranking MIN. voltage recorded.
  • Stress-Test on POWER and GROUND (chassis and sensor).
  • 12 Volt Alternator ripple current.
  • CAN Network Voltage Test.
  • CAN Network Voltage injection.
  • 120 Ohm Termination Resistor Shunt.

Unit will have 2 test settings:

  • 1) Automatic Testing Upon turn-on.
  • 2) Single test by picking desired test.

Automatic Testing Sequence of events.

  • Power STRESS-Test.
  • Ground STRESS-Test.
  • 12 Volt Cranking Analysis test with PASS/FAIL result and Cranking MIN. voltage recorded.
  • 12 Volt engine running Alternator ripple test.
  • CAN Network Voltage Test.

Available Single Tests

  • Power STRESS-Test.
  • Ground STRESS-Test.
  • 12 Volt Cranking Analysis test.
  • 12 Volt engine running Alternator ripple test.
  • CAN Network Voltage Test
  • CAN Network Voltage injection.
  • 120 Ohm Termination Resistor Shunt.



OBD 2 health checker  OBD 2 health checker  OBD 2 health checker  OBD 2 health checker

OBD 2 health checker
Click to enlarge...






copyright by Mandy Concepcion, Automotive Diagnostics and Publishing