P1489 – Chrysler DTC

Chrysler DTC P1489 – High Speed Fan CTRL Relay Circuit

DTC P1489 meaning on Chrysler

DTC P1489 on Chrysler refers to a fault in the High Speed Fan CTRL Relay Circuit. This diagnostic trouble code indicates an issue with the control circuit for the high-speed cooling fan relay.

Chrysler DTC P1489 symptoms

Symptoms of DTC P1489 on a Chrysler vehicle may include:

• Engine overheating
• High engine temperature readings
• Malfunction indicator light (MIL) illuminated on the dashboard

Chrysler DTC P1489 causes

Common causes of DTC P1489 on Chrysler vehicles include:

• Defective high-speed cooling fan relay
• Faulty wiring or connectors in the relay circuit
• Issues with the engine coolant temperature sensor

Chrysler DTC P1489 seriousness

DTC P1489 should be addressed promptly as it can lead to engine overheating and potential damage if left unresolved. Ignoring this fault may result in engine performance issues and possible engine damage.

How to diagnose DTC P1489 on Chrysler

To diagnose DTC P1489 on a Chrysler vehicle, follow these steps:

1. Use a scan tool to retrieve the fault code and freeze frame data
2. Inspect the high-speed cooling fan relay for proper operation
3. Check the wiring and connectors in the relay circuit for any damage or corrosion
4. Test the engine coolant temperature sensor for correct readings

How to fix DTC P1489 on Chrysler

To fix DTC P1489 on a Chrysler vehicle, consider the following steps:

1. Replace the high-speed cooling fan relay if found to be faulty
2. Repair or replace any damaged wiring or connectors in the relay circuit
3. Ensure the engine coolant temperature sensor is functioning correctly
4. Clear the fault code and test the vehicle to verify the repair

How to erase DTC P1489 on Chrysler

To erase DTC P1489 on a Chrysler vehicle, use a scan tool to clear the fault code from the vehicle’s engine control module (ECM). Once the code is cleared, drive the vehicle and monitor for any recurrence of the fault code.

Recommended tools for Chrysler diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.