The P1921 fault code in automobiles indicates a problem with the Transmission Range Sensor.

The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light. The cause of this fault code could be a faulty Transmission Range Sensor, an open or shorted harness, or a poor electrical connection. It is important to address this issue promptly as it can lead to transmission problems.

The repair difficulty is moderate, and the repair time is estimated at 1.0 hour.

To fix the issue, one should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the p1921 fault code.

Here are the symptoms to look out for:

  • The P1921 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include issues with the transmission, such as difficulty shifting gears or the transmission slipping.
  • The vehicle may also experience a decrease in power or acceleration, and there may be a noticeable decrease in fuel efficiency.
  • Additionally, the vehicle may experience stalling or hesitation during acceleration, and there may be a rough idle or misfires.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code P1921 can be caused by a faulty transmission range sensor, open or shorted harness, or poor electrical connection.

  • The automobile fault code P1921 can be caused by a faulty Transmission Range Sensor.
  • It can also be caused by an open or shorted Transmission Range Sensor harness.
  • Additionally, a poor electrical connection in the Transmission Range Sensor circuit can also trigger this fault code.

To fix the p1921 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage.

  • To fix the automobile fault code P1921, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code P1921 indicates an issue with the Engine Coolant Temperature (ECT) sensor circuit. The estimated repair time for this fault code is 1.0 hour.

The cost of fixing this issue can vary depending on the auto repair shop, but it is common for them to charge between $75 and $150 per hour.

Other factors that may influence the cost include the location of the shop, the severity of the issue, and the type of vehicle.

The P1921 code is a generic description for the Transmission Range Signal. However, the manufacturer may have a different description for your specific vehicle model and year. Unfortunately, we do not have any further information about this OBDII code at this time.

If you have any questions or concerns, please feel free to post them in the comments section below for more information.

What are the possible causes of the P1921 automobile fault code?

If your engine light is on and you’re seeing the P1921 fault code, it could be due to a faulty transmission range sensor, an open or shorted transmission range sensor harness, or a poor electrical connection in the transmission range sensor circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the related wiring harness and connectors to fix the P1921 fault code?

If you’re experiencing the P1921 fault code, which is indicated by the Engine Light ON or Service Engine Soon Warning Light, you may have a faulty Transmission Range Sensor or an open or shorted Transmission Range Sensor harness. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify any issues and determine the best course of action to take.

What are the signs that the Transmission Range Sensor harness is open or shorted, causing the P1921 fault code?

If you notice the engine light or service engine soon warning light is on, it could be a sign of a faulty Transmission Range Sensor or an open or shorted Transmission Range Sensor harness. To fix this, visually inspect the related wiring harness and connectors for any damage or corrosion. Check for broken, bent, pushed out, or corroded connector’s pins.

p1921 error fault code explained

If your engine light is on, it could be due to a faulty transmission range sensor, an open or shorted harness, or poor electrical connection. Visually inspect the wiring harness and connectors for damage or corrosion. Check for broken, bent, or pushed out pins.

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