What does code P1289 mean on Ford vehicles?
The CHT sensor sends a signal higher than permitted during self-test.
OBD-II Code Ford
P1289 — Ford — CHT Signal Above Self-Test Range
The CHT sensor sends a signal higher than permitted during self-test.
Common symptoms
- Elevated temperature indication
- engine protection mode
Possible causes
- Faulty CHT sensor
- short to voltage
Initial recommendation
Inspect CHT sensor and test the circuit for shorts.
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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