P1289
Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range
P1289 is an OBD-II diagnostic trouble code meaning: Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range. Common causes: head temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Difficulty starting the engine
- Engine overheating
- Check Engine Light Illuminates
Causes
- Head temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the engine ECU
- Mechanical damage to the wiring harness
How to Fix
- Check the resistance of the head temperature sensor
- Inspect the connector and wires for damage
- Check the voltage in the sensor circuit
- Replace sensor if necessary
- Test engine operation after repair
Related codes
Error P1289 by Vehicle Brand
FAQ
What does the P1289 code mean?
P1289 is an OBD-II diagnostic trouble code that indicates: Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range
What causes a P1289 error code?
The most common causes of P1289 include: Head temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine ECU.
How do I fix a P1289 diagnostic trouble code?
To fix P1289: Check the resistance of the head temperature sensor. Inspect the connector and wires for damage. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1289?
Yes, but get it checked soon
How much does it cost to fix P1289?
The estimated repair cost for P1289 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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