Engine-Codes - Dodge - P1491 Dodge

P1491 Dodge Code - Radiator Fan Relay Circuit Condition

- Code Popularity: 49,535 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1491 Dodge?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P1491 Dodge?

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 connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1491 Dodge code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

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

What are Code Possible Symptoms?

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

What Does the P1491 Dodge Code Mean?

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. Test the fan relay resistance (it should be 30-70 ohms).

P1491 Dodge Code - Radiator Fan Relay Circuit Condition

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