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How to Perform Short to Ground and Short to Battery Tests on Parker ECU (like MC43FS)?

Sayan Biswas 2 weeks ago in Master modules / MC4x • updated by Gustav Widén (System support) yesterday at 10:13 a.m. • 1

Hello,

I am working with a Parker ECU (MC43FS), and I need to test for short to ground and short to battery faults on specific pins. Could you please provide detailed instructions or best practices for performing these tests safely? Specifically, I am interested in:

  1. How to safely simulate a short to ground on the pin and verify the system's response.
  2. How to simulate a short to battery and what actions I should take to test the system's reaction.
  3. Any recommendations for multimeter settings or test equipment to use during these tests.
  4. Expected behaviors or diagnostic codes (e.g., LED blink codes or error logs) that the ECU will produce during these failure scenarios.
  5. Any precautions or potential risks I should be aware of during testing.

Thank you for your assistance!

Best regards,

Sayan Biswas

Gustav Widén (System support) yesterday at 10:13 a.m.

My best recommendation is to start by having a thorough read-through of the IQAN-MC4x instruction book. 

In particular Appendix A for information about SCG and SCB on different pins, and Appendix B about different failur modes and what to expect. 

Customer support service by UserEcho