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2019
ram 150023 views

Check Engine Light On

Expert diagnosis and repair solutions for 2019 ram 1500 Check Engine Light On. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$150-$300
Replace the faulty oxygen sensor to resolve the check engine light issue.
Source: https://www.autonationdodgeramcoloradosprings.com/service/check-engine-light.htm

Repair Steps:

  1. Identify the faulty oxygen sensor using an OBD-II scanner
  2. Purchase a compatible oxygen sensor for the 2019 Ram 1500
  3. Disconnect the battery to prevent electrical issues
  4. Remove the old oxygen sensor using a sensor socket
  5. Install the new sensor and reconnect the battery
2
easy$10-$30
Check and replace the gas cap if it is loose or damaged.
Source: https://www.lhmdenverjeep.com/ram--1500-check-engine-light.htm

Repair Steps:

  1. Inspect the gas cap for any visible damage or wear
  2. Ensure the gas cap is tightly secured
  3. Replace the gas cap if it is damaged or does not seal properly
  4. Drive the vehicle for a few miles to see if the check engine light turns off
3
mediumCovered under warranty if applicable
Perform a PCM software update to address emissions-related DTCs.
Source: https://static.nhtsa.gov/odi/tsbs/2025/MC-11015519-0001.pdf

Repair Steps:

  1. Visit a certified dealer to perform the PCM software update
  2. Ensure the vehicle is connected to a stable power source during the update
  3. Use the wiTECH diagnostic tool to initiate the software update
  4. Verify that the update resolves the check engine light issue
4
hard$500-$1,500
Inspect and replace the catalytic converter if it is causing the check engine light.
Source: https://www.justanswer.com/dodge/dy047-2019-dodge-ram-check-engine-light-go-on-just.html

Repair Steps:

  1. Use an OBD-II scanner to confirm catalytic converter efficiency codes
  2. Inspect the catalytic converter for physical damage or clogging
  3. Remove the old catalytic converter and install a new one
  4. Ensure all connections are secure and test drive the vehicle to confirm the repair
5
easy$0
Reset the check engine light by disconnecting the battery.
Source: https://www.youtube.com/watch?v=aIzZqCsAb54

Repair Steps:

  1. Turn off the vehicle and open the hood
  2. Disconnect the negative battery terminal and wait for 15 minutes
  3. Reconnect the battery terminal
  4. Start the vehicle to see if the check engine light has cleared

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