P1490 DODGE - Low Speed Radiator Fan Control Relay Condition
- 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?
- Engine Light ON (or Service Engine Soon Warning Light)
P1490 Dodge 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 low speed Fan Relay control 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.