P1490 JEEP Possible Causes
- Faulty Radiator Fan Control Relay
- Radiator Fan Control Relay harness is open or shorted
- Radiator Fan Control Relay circuit poor electrical connection
First diagnose P1490 JEEP code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P1490 JEEP code
Labor: 1.0The cost of diagnosing the P1490 JEEP code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P1490 JEEP code detected?The Powertrain Control Module (PCM) has detected an open or shorted condition in the radiator fan relay circuit
P1490 JEEP Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1490 JEEP MeaningWith 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.
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