P1491 Jeep Code - Radiator Fan Relay Circuit Condition
Quick Answer
With the key on or engine running, system voltage over 10v, fan relay commanded on, the Powertrain Control Module (PCM) sets the Diagnostic Trouble Code (DTC) when it detects a shorted or open condition in the relay control circuit. Common causes include Faulty Radiator Fan Control Relay, Radiator Fan Control Relay harness is open or shorted, Radiator Fan Control Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1491 Jeep indicates Radiator Fan Relay Circuit Condition.
- Common causes
- Common causes include Faulty Radiator Fan Control Relay, Radiator Fan Control Relay harness is open or shorted, Radiator Fan Control Relay circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1491 Jeep Description
What are the Possible Causes of the DTC P1491 Jeep?
- Faulty Radiator Fan Control Relay
- Radiator Fan Control Relay harness is open or shorted
- Radiator Fan Control Relay circuit poor electrical connection
- Faulty Radiator Fan
How to Fix the DTC P1491 Jeep?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1491 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1491 Jeep code?
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Need Help with the Code?
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Frequently Asked Questions about P1491 Jeep Code
No Frequently Asked Questions about P1491 Jeep Code found.
Discuss the causes and fixes for P1491 Jeep OBDII Code
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P1491.. hmm, fan runs when asked to by PCM. Recently changed the crankshaft position sensor. Left shop, drove 10 miles and check engine light came on. OBD code P1491. checked fan, its running. What else could be wrong?
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