Ford DTC P1289 – Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range
DTC P1289 meaning on Ford
DTC P1289 on a Ford vehicle indicates that the Cylinder Head Temperature (CHT) sensor signal is greater than the self-test range set by the Engine Control Module (ECM). The CHT sensor is responsible for monitoring the temperature of the cylinder head, providing crucial data for the engine management system.
Ford DTC P1289 symptoms
Symptoms of DTC P1289 may include:
- Check Engine Light (CEL) illuminated
- Engine running rough
- Decreased fuel efficiency
- Engine overheating
Ford DTC P1289 causes
Common causes of DTC P1289 include:
- Faulty CHT sensor
- Wiring or connector issues in the CHT sensor circuit
- ECM software malfunction
Ford DTC P1289 seriousness
While DTC P1289 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential engine damage or performance issues.
How to diagnose DTC P1289 on Ford
To diagnose DTC P1289 on a Ford vehicle, follow these steps:
- Use a scan tool to retrieve the fault codes and freeze frame data.
- Inspect the CHT sensor and its wiring for any visible damage or corrosion.
- Perform a resistance test on the CHT sensor to check for proper operation.
- Check the ECM for any software updates or reprogramming requirements.
How to fix DTC P1289 on Ford
To fix DTC P1289 on a Ford vehicle, consider the following:
- Replace the faulty CHT sensor if it is determined to be the cause.
- Repair any damaged wiring or connectors in the CHT sensor circuit.
- If needed, update the ECM software to the latest version.
How to erase DTC P1289 on Ford
To erase DTC P1289 on a Ford vehicle, use a scan tool to clear the fault codes stored in the ECM memory. Ensure that the underlying issue causing the fault code has been addressed before clearing the code.
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