Chrysler DTC P1491 – Rad Fan Control Relay Circuit
DTC P1491 meaning on Chrysler
DTC P1491 on Chrysler refers to the Rad Fan Control Relay Circuit. This diagnostic trouble code indicates an issue with the circuit that controls the radiator fan relay.
Chrysler DTC P1491 symptoms
Symptoms of DTC P1491 on a Chrysler vehicle may include:
- Radiator fan not operating
- Engine overheating
- Check Engine Light illuminated
Chrysler DTC P1491 causes
Common causes of DTC P1491 on Chrysler vehicles include:
- Defective radiator fan relay
- Faulty wiring or connections in the relay circuit
- Blown fuse related to the radiator fan circuit
Chrysler DTC P1491 seriousness
The seriousness of DTC P1491 on a Chrysler vehicle depends on the driving conditions. If the radiator fan is not functioning properly, it can lead to engine overheating and potential damage if not addressed promptly.
How to diagnose DTC P1491 on Chrysler
To diagnose DTC P1491 on a Chrysler vehicle, you can perform the following steps:
- Check the radiator fan operation by turning on the AC and observing if the fan runs
- Inspect the radiator fan relay for any signs of damage or corrosion
- Test the relay circuit for continuity and proper voltage
- Scan the vehicle’s computer for additional fault codes
How to fix DTC P1491 on Chrysler
To fix DTC P1491 on a Chrysler vehicle, you can try the following solutions:
- Replace the radiator fan relay if it is found to be faulty
- Repair any damaged wiring or connections in the relay circuit
- Check and replace any blown fuses related to the radiator fan circuit
How to erase DTC P1491 on Chrysler
To erase DTC P1491 on a Chrysler vehicle, you can use an OBD-II scanner to clear the code after the underlying issue has been resolved. Once the repair is completed, the code can be cleared to reset the Check Engine Light.
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