Qualcomm OBDII J1708 Guía para resolver problemas Pagina 38

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Check System Voltage Measurements and Grounding Troubleshooting Best Practices
10-2 80-JB566-1 Rev. C
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
Check System Voltage Measurements and Grounding
Use the same ground reference that the particular circuit uses.
Check the VTM50 LED.
Verify that vehicle battery and cables are in good condition.
Check voltages (see Appendix A for more information):
Replace Only Faulty Parts
Typically, only one part is bad. Once the system is operating, you can substitute suspect parts
back into the system to verify which part is bad, or use a test cart equipped with known good
spare parts to retest suspect parts.
Determine If the Problem Is Intermittent
Check for bad or loose electrical connections including cable connectors, ring terminals, butt
splices, and power/ground connections. These can contribute to intermittent system
performance.
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