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).
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P0703 Volkswagen code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
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.
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