Jeep DTC P1491 – Rad Fan Control Relay Circuit
DTC P1491 meaning on Jeep
DTC P1491 for Jeep refers to an error code related to the Rad Fan Control Relay Circuit. This code indicates an issue with the circuit responsible for controlling the radiator fan in the vehicle.
Jeep DTC P1491 symptoms
Symptoms of DTC P1491 on a Jeep may include:
- Radiator fan not functioning properly or not turning on
- Engine overheating
- Check Engine Light illuminated on the dashboard
Jeep DTC P1491 causes
Common causes of DTC P1491 on a Jeep include:
- Defective radiator fan control relay
- Faulty wiring or connections in the radiator fan circuit
- Issues with the radiator fan motor
Jeep DTC P1491 seriousness
The seriousness of DTC P1491 on a Jeep depends on the underlying cause. If left unresolved, it can lead to engine overheating and potential damage. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P1491 on Jeep
To diagnose DTC P1491 on a Jeep, you can:
- Check the radiator fan control relay for proper operation
- Inspect the wiring and connections in the radiator fan circuit for any damage or corrosion
- Test the radiator fan motor to ensure it is functioning correctly
How to fix DTC P1491 on Jeep
To fix DTC P1491 on a Jeep, you may need to:
- Replace the radiator fan control relay if it is found to be defective
- Repair any damaged wiring or connections in the radiator fan circuit
- Replace the radiator fan motor if necessary
How to erase DTC P1491 on Jeep
To erase DTC P1491 on a Jeep, you can:
- Use an OBD-II scanner to clear the error code from the vehicle’s computer
- Ensure that the underlying issue causing the code has been resolved before clearing it
Recommended tools for Jeep diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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