Code
U0140
Network
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Most likely causes
- BCM تالف
- أسلاك
Symptoms you may notice
- Wipers/lights/windows act up
- Many warning lights
Checks to run
- Check BCM fuses and grounds
- Test CAN wiring
- Scan the BCM
Tools you may need
Multimeter
OBD-II scanner
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.