P2563Chrysler PacificaYears: 1996 - 2026
ECM/TCM Communication / Power (P2563)
Reviewed by ASE Certified Technician
What does this mean?
Code P2563 relates to ECM/TCM communication or power supply circuits.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Chrysler Pacifica models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Internal PCM/ECM failure
PCM/ECM software needs update (TSB)
Damaged, chafed, or broken wiring harness
Weak or failing battery
Symptoms to Watch For
- Check Engine Light is illuminated
- Vehicle enters reduced power / limp mode
- Engine cranks but won't start
- Engine stalling or dying unexpectedly