Dodge DTC P1490 – Low Speed Fan CTRL Relay Circuit
DTC P1490 meaning on Dodge
The Diagnostic Trouble Code (DTC) P1490 for Dodge vehicles indicates a fault in the Low Speed Fan CTRL Relay Circuit.
Dodge DTC P1490 symptoms
Symptoms of DTC P1490 on a Dodge may include:
- Engine overheating
- Malfunctioning cooling fan
- Check Engine Light illuminated
Dodge DTC P1490 causes
Common causes of DTC P1490 on Dodge vehicles include:
- Defective low-speed fan control relay
- Wiring issues in the fan control circuit
- Faulty engine coolant temperature sensor
Dodge DTC P1490 seriousness
The seriousness of DTC P1490 lies in the potential for engine overheating, which can lead to severe engine damage if not addressed promptly.
How to diagnose DTC P1490 on Dodge
To diagnose DTC P1490 on a Dodge vehicle, a mechanic may perform the following steps:
- Use a scan tool to retrieve the DTC and freeze frame data
- Inspect the low-speed fan control relay for proper operation
- Check the wiring and connectors in the fan control circuit for any damage or corrosion
- Test the engine coolant temperature sensor for functionality
How to fix DTC P1490 on Dodge
To fix DTC P1490 on a Dodge, the following steps may be taken:
- Replace the low-speed fan control relay if found to be faulty
- Repair or replace any damaged wiring or connectors in the fan control circuit
- Replace the engine coolant temperature sensor if it is determined to be the cause
How to erase DTC P1490 on Dodge
To erase DTC P1490 on a Dodge, the fault must first be fixed. Once the issue is resolved, a scan tool can be used to clear the DTC and reset the Check Engine Light.
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