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Code
U0101
Network

Perte de communication avec le calculateur de boîte

La communication avec le calculateur de boîte est perdue.

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Most likely causes

  1. TCM défectueux
  2. Câblage CAN

Symptoms you may notice

  • Transmission warning
  • Limp mode

Checks to run

  1. Check TCM power and grounds
  2. Test CAN wiring
  3. Scan TCM

Tools you may need

Multimeter OBD-II scanner
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

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