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P1521 Dodge Code - Incorrect Engine Oil Type

- Code Popularity: 74,066 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1521 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.
  • Incorrect engine oil viscosity
  • Incorrect oil type
  • Oil contamination
  • Faulty Engine Oil Pressure Sensor
  • Reprogram Powertrain Control Module (PCM)
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How to Fix the DTC P1521 Dodge?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

This Diagnostic Trouble Code (DTC) may set in high ambient temperature conditions when the correct oil type (viscosity) is being used in the Engine. If correct oil viscosity is used, but the code keeps coming back, reprogramming (refreshing) the Powertrain Control Module (PCM) will take care of the problem.





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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1521 Dodge code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1521 Dodge Description

Using the oil pressure, oil temperature and other vital engine inputs the Powertrain Control Module (PCM) can determine the engine oil viscosity. Incorrect viscosity will affect the operation of the MDS by delaying cylinder activation. The Diagnostic Trouble Code (DTC) will set when the PCM has detected an incorrect engine oil viscosity.

OBDII Code P1521 Dodge - Incorrect Engine Oil Type - AutoCodes.com
P1521 Dodge Code - Incorrect Engine Oil Type

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Code P1521 Dodge comments

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