How does it work?
The breakout lead is simply connected into the existing cable loom, enabling voltage readings to be taken from the numerous sensors in the engine compartment.
The output signal can then be taken from the 4 mm banana plugs to the input of the automotive oscilloscope using one of our automotive test leads.
Connecting Breakout Leads
Please read these instructions before using the breakout lead. MicroTec takes no responsibility for any damage caused through incorrect use. These leads are designed to be used by experienced/professional automotive vehicle technicians who understand the implications of incorrect use.
The signal pins must be identified using wiring diagrams or other means.
It may be possible to cause a short circuit to the oscilloscope unit if incorrect connections are made! A short circuit could seriously damage the unit, and would require it to be repaired at your own cost.
- Ensure the ignition is switched off before removing any multiplugs
- On removal of a multiplug keep the plug straight – do not twist the plug out of alignment with its mating partner
- Always connect both the male and female terminals
- The component-only terminals may be connected if carrying out a resistance test. Ensure the ignition is switched off during the test
- Ensure each colour-matched pair of wires in the test lead is used to connect matching terminals in the male and female plugs
- Never partially connect the test leads
- Always ensure that the terminals are correctly located
- Keep test leads aways from hot components, such as the exhaust system
- Keep test leads away from moving parts, such as the alternator drive belt
- Keep test leads away from electrical cooling fans
Typical Uses
Any measurement taken is only as good as the connection you make to the device under test. The 6-way universal breakout leads will connect to a multitude of vehicle components regardless of connector arrangement. This will ensure you have a 100% successful connection, removing any doubt from your test results. A broadband oxygen sensor test is a typical example where multiple measurements are required for both voltage and current. The 4 mm banana terminals introduce a simple and secure voltage measurement point for your test lead, whilst a current clamp can be applied to any breakout lead to monitor current. The breakout leads can also confirm the integrity of the harness/component "terminal tension" by inspecting for "grip" of the breakout lead terminal inside the vehicle connector.
- Inspection of terminal pin contact for any matching connector
- O2 sensor measurements for voltage and current (including broadband)
- Actuator measurements for voltage and current
- Sensor measurements for voltage and feedback
- "Open" and "short" tests of circuits
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