AutoCodes – Acura – P0703 Acura

P0703 Acura Code - Brake Pedal Position Switch Malfunction

Quick Answer

The Powertrain Control Module (PCM) detects a brake pedal position switch malfunction by monitoring ON/OFF signals from the brake pedal position switch. Common causes include Faulty Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted, Brake Pedal Position Switch circuit poor electrical connection. 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 Acura indicates Brake Pedal Position Switch Malfunction.
Common causes: Common causes include Faulty Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted, Brake Pedal Position Switch circuit poor electrical connection.
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.

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Code Popularity 242

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 08, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0703 Acura Description

The Powertrain Control Module (PCM) detects a brake pedal position switch malfunction by monitoring ON/OFF signals from the brake pedal position switch. If the PCM continuously inputs an ON or OFF signal from the brake pedal position switch for a specified time during a specified condition, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0703 Acura - Brake Pedal Position Switch Malfunction - AutoCodes.com — P0703 Acura Code - Brake Pedal Position Switch Malfunction

What does this mean?

What are the Possible Causes of the DTC P0703 Acura?

Faulty Brake Pedal Position Switch
Brake Pedal Position Switch harness is open or shorted
Brake Pedal Position Switch circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0703 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0703 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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.

Frequently Asked Questions about P0703 Acura Code

What does the OBD-II code P0703 mean for an Acura?

Code P0703 indicates a malfunction in the brake pedal position (BPP) switch circuit, which monitors brake pedal activity for systems like cruise control and transmission operation.

What are the symptoms of code P0703 on an Acura?

Symptoms may include the inability to use cruise control, transmission shifting issues, or the illumination of the check engine light.

What are common causes of code P0703 on an Acura?

Common causes include a faulty brake pedal position switch, damaged wiring or connectors in the BPP circuit, or issues with the vehicle's powertrain control module (PCM).

Can P0703 affect transmission performance?

Yes, P0703 can impact transmission operation by causing erratic shifting or preventing the transmission from disengaging properly.

How do I diagnose code P0703 on an Acura?

Start by inspecting the brake pedal position switch, wiring, and connectors for damage or corrosion. Use a multimeter to test the switch and check for proper voltage in the circuit.

How do I fix code P0703 on an Acura?

Repairs may involve replacing the brake pedal position switch, repairing or replacing damaged wiring, cleaning corroded connectors, or resetting the PCM.

Is it safe to drive with code P0703 on my Acura?

While the vehicle may still be drivable, issues like cruise control malfunction or erratic shifting could compromise safety. Address the problem promptly.

How much does it cost to repair code P0703 on an Acura?

Repair costs vary but may range from $50-$150 for a replacement brake pedal position switch, plus labor charges if performed by a mechanic.

Can a bad brake pedal position switch cause other problems?

Yes, a faulty switch can interfere with cruise control operation, transmission behavior, and even brake light functionality.

Can I clear code P0703 without making repairs?

Clearing the code without fixing the underlying issue will likely cause it to return. Proper diagnosis and repair are required to resolve the problem permanently.