Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2001M5REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALBUS SYSTEM TROUBLESHOOTING - OVERVIEW - E36, E38, E39, E46, E52 & E53BUS SYSTEM TROUBLESHOOTINGCONTROLLER AREA NETWORK (CAN BUS)TROUBLESHOOTING THE CAN BUSCAN HIGH SHORTED TO CAN LOW
2001 BMW M5
CAN High Shorted To CAN Low
2001 BMW M5SECTION CAN High Shorted To CAN Low
If the CAN bus lines were to become shorted to one another then the signals would cancel each other out and effectively be a flat line.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.