What does code P1627 mean on Mazda vehicles?
A communication error has been detected between the ECM and the Traction Control System (TCS).
OBD-II Code Mazda
P1627 — Mazda — Powertrain Control Module (ECM/TCS) Line Communication Error
A communication error has been detected between the ECM and the Traction Control System (TCS).
Common symptoms
- Check engine light
- TCS warning indicator
Possible causes
- CAN line fault
- communication issue
Initial recommendation
Check CAN wiring and ECM-TCS communication lines.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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