AutoCodes
 
OBDII Code List
 
P0503 SCION

P0503 SCION - Vehicle Speed Sensor 'A' Intermittent

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
Comments  |  Add Comment

Possible causes

  • Faulty Vehicle Speed Sensor
  • Vehicle speed sensor harness or connectors is open or shorted
  • Vehicle speed sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

Tech notes

Replaced the speed sensor on top transmission.

When is the code detected?

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

Possible symptoms

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

P0503 Scion 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 Scion - Vehicle Speed Sensor 'A' Intermittent - AutoCodes.com

Need more help?

Get the P0503 Scion code diagnosed by a professional: Find a repair shop in your area

Related Information

P0503 SCION Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0503 Scion code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧