HOW TO DIAGNOSE CAN BUS FAULTS [PicoScope 2204A Powertrain High Speed CAN] Mechanic Mindset

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Electronics

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We look at how to diagnose MULTIPLE CAN Bus faults using the PicoScope 2204A. We perform automotive oscilloscope CAN bus diagnostics on the high speed Powertrain CAN Bus network. We will look at how to set up the oscilloscope for CAN Bus Diagnostics and then install various faults on the network. We investigate how to identify CAN Bus line faults: short together, short to ground, short to positive and open circuit faults and analyze the oscilloscope waveform.

We are using the PicoScope 2204A oscilloscope; it is not designed to be an automotive oscilloscope, but it does a great job, especially for the price!! Links below. It’s a good cheap automotive oscilloscope. We use the PicoScope 2204a oscilloscope to analyze a CAN Bus waveform while different faults are installed.

USA Product Links:
PicoScope 2204A: https://ytlnk.com/fgsDt22?utm_content=f2uPhKd-ETI
Hantek CC-65: https://ytlnk.com/SLt2Y3m?utm_content=f2uPhKd-ETI
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UK Product Links:
PicoScope 2204A: https://ytlnk.com/pJVCYVC?utm_content=f2uPhKd-ETI
Hantek CC-65: https://ytlnk.com/iaSYbI6?utm_content=f2uPhKd-ETI
Hantek CC-650: https://ytlnk.com/nLZOgJn?utm_content=f2uPhKd-ETI
Hantek Automotive Leads x2: https://ytlnk.com/1JerOu2?utm_content=f2uPhKd-ETI
20:1 Attenuator: https://ytlnk.com/Wt7lMLG?utm_content=f2uPhKd-ETI
Back Probes: https://ytlnk.com/dIs5x6c?utm_content=f2uPhKd-ETI
Alligator Clips: https://ytlnk.com/q1nvszx?utm_content=f2uPhKd-ETI
Hantek Ignition Probe: https://ytlnk.com/livvyXO?utm_content=f2uPhKd-ETI

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Timestamps for How to Diagnose Can Bus Faults
00:00 Intro
00:19 CAN High verses CAN Low
00:50 How to connect the oscilloscope to CAN Bus
01:16 How to set up the oscilloscope to test CAN Bus
02:10 CAN Bus waveform analysis
02:37 How to diagnose CAN high and low short circuit
03:36 How to diagnose CAN high and low short to ground
05:07 How to diagnose CAN high and low short to positive
06:11 CAN Bus diagnostics & How to find CAN bus faults
06:52 How to diagnose CAN Bus open circuit and waveform analysis
How to diagnose intermittent CAN bus faults with the oscilloscope

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Check out my other videos!!
Best & Cheapest Automotive Scope – https://youtu.be/1LBKtlpCj_4
CAN Bus Multimeter Test – https://youtu.be/JPE42HSJxAk
5 Easy Oscilloscope Tips – https://youtu.be/nmGubcuzbtU
Quick Misfire Check – https://youtu.be/MOLj5vGIDsg

CAN graphic credit – By EE JRW – Own work, CC BY-SA 4.0, https://ytlnk.com/5itfsNM?utm_content=f2uPhKd-ETI