Chrysler Error Code P1487: How to Fix It

Medium 1-3 hours Medium Severity Verified June 2026
Error Code
P1487
Brand
Chrysler
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-3 hours
Chrysler error code P1487 indicates a problem with the high speed cooling fan relay circuit. This means your engine's cooling system isn't operating at full capacity, which could lead to overheating if not addressed promptly.
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Tools You'll Need

How to Fix Error Code P1487

  1. Check the OBD2 Code

    Ensure the vehicle is parked safely and the parking brake is engaged before performing diagnostics.
  2. Inspect the High Speed Cooling Fan

    Only check the fan when the engine is completely cool and turned off. Hot engine components can cause severe burns.
  3. Test the Cooling Fan Operation

    Keep hands and loose clothing away from moving fan blades and hot engine components.
  4. Locate and Inspect the Fan Relay

    Disconnect the battery negative terminal before removing relays to prevent electrical shorts.
  5. Test the Relay

  6. Check Wiring and Connections

    Ensure the engine is cool before inspecting wiring near hot engine components.
  7. Test the Fan Motor

    Use proper jumper wires and avoid short circuits when applying direct power to the fan motor.
  8. Clear the Code and Test

Parts You May Need

High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
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OBD2 code scanner
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Electrical connectors and terminals
Check Price on Amazon
High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
Check Price on Amazon
OBD2 code scanner
Check Price on Amazon
Electrical connectors and terminals
Check Price on Amazon
High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
Check Price on Amazon
OBD2 code scanner
Check Price on Amazon
Electrical connectors and terminals
Check Price on Amazon
High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
Check Price on Amazon
OBD2 code scanner
Check Price on Amazon
Electrical connectors and terminals
Check Price on Amazon
High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
Check Price on Amazon
OBD2 code scanner
Check Price on Amazon
Electrical connectors and terminals
Check Price on Amazon
High speed cooling fan relay
Check Price on Amazon
Cooling fan motor assembly
Check Price on Amazon
OBD2 code scanner
Check Price on Amazon
Electrical connectors and terminals
Check Price on Amazon
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When to Call a Professional

Call a professional mechanic if you're uncomfortable working with electrical components, if the problem persists after replacing the relay, or if you discover extensive wiring damage that requires specialized repair techniques.

Frequently Asked Questions

Can I drive with Chrysler error code P1487?
You can drive short distances, but avoid extended driving or stop-and-go traffic. The high speed cooling fan helps prevent overheating, especially during heavy loads or hot weather. Monitor your temperature gauge closely.
How much does it cost to fix P1487 on a Chrysler?
Costs vary depending on the cause. A cooling fan relay replacement costs $20-50, while a cooling fan motor replacement can cost $150-400 including labor. Wiring repairs may cost $100-300 depending on complexity.
What causes P1487 error code in Chrysler vehicles?
Common causes include a faulty high speed cooling fan relay, damaged cooling fan motor, corroded wiring connections, blown fuses, or problems with the engine control module's fan control circuit.
Will P1487 cause my Chrysler to overheat?
P1487 can contribute to overheating, especially in hot weather, during heavy acceleration, or when using air conditioning. The high speed fan is crucial for maintaining proper engine temperature under demanding conditions.