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P0703 Volkswagen Code - Brake Switch 'B' Circuit

- Code Popularity: 10,591 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0703 Volkswagen?

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 Brake Switch
  • Brake Switch harness is open or shorted
  • Brake Switch circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P0703 Volkswagen?

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.

Code Tech Notes

Check if the stop light works when the brake pedal is depressed if the brake lights are inoperative, replace or adjust the Brake Switch (Stop Lamp Switch).

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0703 Volkswagen 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.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Brake lights inoperative

Code P0703 Volkswagen Description

This fault code is stored in the engine control module when a malfunction is detected in the brake pedal switch circuit. Two separate switches can be fitted to the vehicle or one component with both switches integrated can be fitted to the vehicle. A plausibility check is carried out between both brake pedal switches and the accelerator pedal position sensor. The configuration of the switches can be: one switch will be normally open type and the other switch will be a normally closed type. A voltage drop test can be used to validate the operation of the circuit. The signal from the switch is used by the engine control module, anti-lock brake control module and to actuate the brake lights.

OBDII Code P0703 Volkswagen - Brake Switch 'B' Circuit - AutoCodes.com
P0703 Volkswagen Code - Brake Switch 'B' Circuit

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Code P0703 Volkswagen comments

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