P1489 JEEP - High Speed Radiator Fan Control Relay Condition

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Radiator Fan Control Relay
  • Radiator Fan Control Relay harness is open or shorted
  • Radiator Fan Control Relay circuit poor electrical connection

When is the code detected?

The Engine Control Module (ECM) has detected an open or shorted condition in the radiator fan relay circuit

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1489 Jeep Description

With the key on or engine running, system voltage over 10v, the Powertrain Control Module (PCM) detects a shorted or open condition in the high speed Radiator Fan Relay circuit for 3 seconds. Test the fan relay resistance (it should be 30-70 ohms). Refer to code repair chart in other manuals or media.
OBDII Code P1489 Jeep - High Speed Radiator Fan Control Relay Condition - AutoCodes.com

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P1489 JEEP Comments

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