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P0503 2003 Toyota Highlander Code - Vehicle Speed Sensor 'A' Intermittent

- Code Popularity: 1,806 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0503 2003 Toyota Highlander?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Vehicle Speed Sensor
  • Vehicle speed sensor harness or connectors is open or shorted
  • Vehicle speed sensor circuit poor electrical connection
  • Combination meter
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P0503 2003 Toyota Highlander?

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.

Search for P0503 2003 Toyota Highlander Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0503 2003 Toyota Highlander 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.

When is the Code Detected?

The signal sent by the vehicle speed sensor to ECM is too high or intermittent.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Speedometer may not work properly
  • Transmission shifting problem

Code P0503 2003 Toyota Highlander Description

The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the Engine Control Module (ECM). The ECM determines the vehicle speed based on the frequency of these pulse signals.

OBDII Code P0503 2003 Toyota Highlander - Vehicle Speed Sensor 'A' Intermittent - AutoCodes.com
P0503 2003 Toyota Highlander Code - Vehicle Speed Sensor 'A' Intermittent

Need More Information on the Code?

Need more information on how to fix the P0503 2003 Toyota Highlander code? Get Access to Factory Service Manuals

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Code P0503 2003 Toyota Highlander comments

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