If you see the engine light on or the service engine soon warning light, it could be due to the automobile fault code P1003. This code is typically caused by a faulty fuel composition sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Additionally, look out for broken, bent, pushed out, or corroded connector pins. The repair time for this fault code is estimated to be around 1.0. Remember to check the “Possible Causes” listed above and take the necessary steps to address the issue.

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

When the engine light is on or the service engine soon warning light is illuminated, it could indicate the presence of fault code p1003.

  • The symptoms of the automobile fault code P1003 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1003 can be caused by a faulty fuel composition sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

  • The fault code P1003 can be caused by the following: a faulty fuel composition sensor, an open or shorted fuel composition sensor harness, and a poor electrical connection in the fuel composition sensor circuit.

To fix the p1003 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1003, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p1003 are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1003 fault code is related to the communication between control modules in a vehicle. These modules exchange operating information and commands through the serial data circuits. Each module keeps track of transmit and receive errors with error counters.

When the Fuel Composition Signals Message Counter is incorrect, indicating a problem with the fuel composition signals, the P1003 code is triggered. This code helps identify issues with the communication system and can assist in diagnosing and fixing the problem.

What are the possible causes for the automobile fault code P1003?

If you see the engine light or service engine soon warning light on, the fault code P1003 could be the culprit. This code is often caused by a faulty fuel composition sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage or corrosion, and check for broken, bent, pushed out, or corroded pins in the connectors. Don’t forget to check the possible causes listed above for a more comprehensive solution.

How can I visually inspect the wiring harness and connectors to fix the P1003 fault code?

To fix the P1003 fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify if the issue lies with a faulty fuel composition sensor, an open or shorted sensor harness, or a poor electrical connection. Take note of any findings to determine the next steps for resolving the problem.

What should I look for when checking for damaged components or corroded connector pins to resolve the P1003 fault code?

When resolving the P1003 fault code, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded connector pins. By addressing these issues, you can effectively fix the problem and get rid of the Engine Light or Service Engine Soon Warning Light.

p1003 error fault code explained

If your engine light is on, it could be due to a faulty fuel composition sensor or issues with the sensor’s wiring. To fix this, visually inspect the wiring harness and connectors for any damage.

Check for broken or corroded pins on the connectors.

Take action now to prevent further problems.

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