Engine-CodesInfiniti – P0703 Infiniti

P0703 Infiniti Code - Stop Lamp Swich Circuit

Quick Answer

The P0703 Infiniti code refers to a problem in the Stop Lamp Switch Circuit. Common causes include Faulty stop lamp switch, Damaged wiring in the circuit, Blown brake light fuse. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0703 Infiniti indicates Stop Lamp Swich Circuit.
Common causes
Common causes include Faulty stop lamp switch, Damaged wiring in the circuit, Blown brake light fuse.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0703 Infiniti Description

The P0703 Infiniti code refers to a problem in the Stop Lamp Switch Circuit. This code indicates that there is an issue with the circuit that controls the stop lamp switch, which is responsible for turning on the brake lights when the brake pedal is pressed. The stop lamp switch is a crucial component for the safety of the vehicle, as it alerts other drivers when the vehicle is slowing down or stopping. When this circuit malfunctions, it can lead to a variety of issues, including the brake lights not turning on when the brake pedal is pressed.

OBDII Code P0703 Infiniti - Stop Lamp Swich Circuit
P0703 Infiniti Code - Stop Lamp Swich Circuit

Common Causes of P0703 Infiniti

  1. Faulty stop lamp switch.
  2. Damaged wiring in the circuit.
  3. Blown brake light fuse.
  4. Corrosion in the electrical connectors.
  5. Issues with the brake light bulbs.

Symptoms of P0703 Infiniti

  1. Brake lights not turning on when the brake pedal is pressed.
  2. Brake lights staying on continuously.
  3. Cruise control not working properly.
  4. Inability to shift out of park.

How to Fix P0703 Infiniti

  1. Begin by locating the stop lamp switch, typically found near the brake pedal.
  2. Disconnect the wiring harness from the stop lamp switch.
  3. Remove the old stop lamp switch and replace it with a new one.
  4. Reconnect the wiring harness to the new stop lamp switch.
  5. Test the brake lights to ensure they are functioning properly.

Cost to Fix P0703 Infiniti

The cost of repairing the P0703 Infiniti code can vary depending on the specific cause of the issue. On average, the cost of replacing a stop lamp switch can range from $50 to $100 for the part itself. Labor costs typically range from $80 to $150 per hour, and the repair process may take around 1-2 hours to complete. Overall, the total cost of repairing this issue can range from $150 to $300, including parts and labor. It's important to note that prices may vary based on location, vehicle make and model, and the shop's labor rates.

Tech Notes for P0703 Infiniti

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

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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