Lost Communication With Seat Belt Pretensioner Module B

Where it lives

For U017F, the part to look at first is the module named here.

Check these first

• Wiring or connector damage at pretensioner module B
• A failed seat belt pretensioner module B
• Corrosion or water in the pretensioner module B circuit
• A module B installed incorrectly after a repair
• A software fault in the module that talks to pretensioner B

What to do next

1. Inspect the pretensioner module B wiring for damage
2. Check the pretensioner module B connectors for corrosion
3. Verify pretensioner module B is seated and locked in
4. Monitor pretensioner module B on a scan tool
5. Replace seat belt pretensioner module B if faulty
6. Clear the code and retest

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