P1491 – Dodge DTC

Dodge DTC P1491 – Rad Fan Control Relay Circuit

DTC P1491 meaning on Dodge

1. DTC P1491 indicates a problem with the Rad Fan Control Relay Circuit in Dodge vehicles.

Dodge DTC P1491 symptoms

• Engine overheating
• Check Engine Light illuminated
• Malfunctioning radiator fan

Dodge DTC P1491 causes

• Defective radiator fan control relay
• Faulty wiring or connections in the relay circuit
• Issues with the radiator fan motor

Dodge DTC P1491 seriousness

1. If left unresolved, DTC P1491 can lead to engine overheating, potential damage, and reduced vehicle performance.

How to diagnose DTC P1491 on Dodge

1. Use an OBD-II scanner to retrieve the trouble code and verify DTC P1491.
2. Inspect the radiator fan control relay for any signs of damage or corrosion.
3. Check the wiring and connections in the relay circuit for continuity and proper voltage.
4. Test the radiator fan motor to ensure it is functioning correctly.

How to fix DTC P1491 on Dodge

1. Replace the faulty radiator fan control relay with a new one.
2. Repair or replace any damaged wiring or connections in the relay circuit.
3. If the radiator fan motor is defective, replace it with a new one.

How to erase DTC P1491 on Dodge

1. After fixing the underlying issue causing DTC P1491, use an OBD-II scanner to clear the trouble code.
2. Ensure the repair has resolved the problem before clearing the code.

Recommended tools for Dodge diagnostics

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Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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