Radiator Fan Relay Circuit Condition


Table of contents

P1491 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

How do I fix code P1491 JEEP?

  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’s pins.

Tech Notes

  User Submitted Video

Cost of diagnosing the P1491 JEEP code

  The cost of diagnosing the P1491 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs 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

Possible Symptoms

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

P1491 JEEP Description

  With the key on or engine running, system voltage over 10v, fan relay commanded on, the Powertrain Control Module (PCM) detects a shorted or open condition in the relay control circuit. Test the fan relay resistance (it should be 30-70 ohms). Refer to code repair chart in other manuals or media.

Comments

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  2. Amie

    Like all AAS, Anavar will positively affect your restoration, dashing up tissue therapeutic.
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    To maximize results, combining a quantity of
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    Deca (Nandrolone Decanoate) is a reliable, affordable, and
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    Some guys will swear by not utilizing Deca at anything underneath 500mg/week,
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    If you’re considering taking Nandrolone at greater doses
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    It will stress the liver extra and pose an increased risk to the cardiovascular system.
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    at a big risk of both immediate unwanted aspect effects
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