P0703 BMW Code - Brake Light Switch Plausibility
Quick Answer
The Brake Pedal Position (BPP) switch is sometimes referred to as the stop lamp switch. Common causes include Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch), Misadjusted Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted. 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 BMW indicates Brake Light Switch Plausibility.
- Common causes
- Common causes include Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch), Misadjusted Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted.
- 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.
Code P0703 BMW Description
What are the Possible Causes of the DTC P0703 BMW?
- Faulty Brake Pedal Position (BPP) Switch (Stop Lamp Switch)
- Misadjusted Brake Pedal Position Switch
- Brake Pedal Position Switch harness is open or shorted
- Brake Pedal Position Switch circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0703 BMW?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0703 BMW 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.
Need more information about the P0703 BMW code?
Need more information on how to fix the P0703 BMW code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0703 BMW code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0703 BMW Code
1. What does the OBDII code P0703 mean for a BMW?
P0703 indicates an issue with the brake light switch plausibility, meaning the brake light switch signal is inconsistent or not functioning as expected.
2. What are the symptoms of a P0703 code in a BMW?
Common symptoms include non-functional brake lights, a Check Engine Light, erratic transmission shifting, or cruise control not working.
3. What causes the P0703 code to appear in a BMW?
This code can be caused by a faulty brake light switch, damaged wiring or connectors, incorrect brake switch adjustment, or a malfunction in the vehicle’s ECM.
4. Can a P0703 code affect the transmission in a BMW?
Yes, a P0703 code can cause transmission issues such as rough or delayed shifting, as the brake light switch is involved in transmission control logic.
5. How is a P0703 code diagnosed in a BMW?
A technician will check the brake light switch, its wiring, and connectors, and verify the switch's operation using a scan tool and multimeter.
6. Can I drive my BMW with the P0703 code?
Driving with a P0703 code is not recommended, as it may affect safety systems like brake lights and cruise control, as well as transmission performance.
7. How do I fix the P0703 code in my BMW?
Repairs may involve replacing the brake light switch, repairing damaged wiring, or adjusting the brake pedal switch for proper function.
8. What tools are needed to fix a P0703 code?
You may need a scan tool, a multimeter, and basic hand tools to diagnose and repair issues related to the P0703 code.
9. How much does it cost to fix a P0703 code on a BMW?
Repair costs vary but typically range from $50 to $200, depending on whether the brake light switch needs replacement or wiring repairs are required.
10. Can I reset the P0703 code after repairs on my BMW?
Yes, after repairs, you can clear the P0703 code using an OBDII scan tool to ensure the issue has been resolved.
Discuss the causes and fixes for P0703 BMW OBDII Code
Code P0703 BMW comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
