P0703 Cadillac Code - Brake Switch Signal Message Counter Incorrect
Quick Answer
The diagnostic trouble code P0703 for Cadillac vehicles indicates that there is an issue with the brake switch signal message counter being incorrect. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning vehicle computer. 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 Cadillac indicates Brake Switch Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning vehicle computer.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0703 Cadillac Description
The diagnostic trouble code P0703 for Cadillac vehicles indicates that there is an issue with the brake switch signal message counter being incorrect. The brake switch is a crucial component in the vehicle's braking system, as it sends a signal to the vehicle's computer when the brake pedal is depressed. This signal is used by the computer to control various functions, such as disengaging the cruise control, activating the brake lights, and disengaging the transmission's torque converter lockup.
Common Causes of P0703 Cadillac
- Faulty brake switch
- Damaged wiring or connectors in the brake switch circuit
- Malfunctioning vehicle computer
- Corrosion in the brake switch circuit
- Loose connections in the brake switch circuit
Symptoms of P0703 Cadillac
- Transmission shifting erratically or not shifting at all
- Cruise control not disengaging when the brake pedal is pressed
- Brake lights not activating when the brake pedal is depressed
- Check Engine Light illuminated on the dashboard
How to Fix P0703 Cadillac
- Begin by inspecting the brake switch and its wiring for any visible damage or corrosion.
- Test the brake switch using a multimeter to ensure it is functioning properly.
- Check for any loose connections in the brake switch circuit and secure them if necessary.
- If the brake switch is deemed faulty, replace it with a new one following the manufacturer's guidelines.
- Clear the diagnostic trouble code from the vehicle's computer using an OBD-II scanner to reset the system.
Cost to Fix P0703 Cadillac
The typical repair costs for addressing the P0703 code on a Cadillac vehicle can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to obtain a detailed quote from a trusted mechanic before proceeding with the repair.
Need more information about the P0703 Cadillac code?
Need more information on how to fix the P0703 Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0703 Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0703 Cadillac Code
What does the OBDII code P0703 mean for my Cadillac?
The OBDII code P0703 indicates a problem with the brake switch signal, specifically that the message counter is incorrect, which can affect the transmission's operation and the vehicle's safety features.
What are the common symptoms of a P0703 code?
Common symptoms include the brake lights not functioning properly, difficulty shifting gears, or the transmission entering limp mode, which limits the vehicle's speed and performance.
What can cause the P0703 code to trigger?
Causes can include a faulty brake light switch, wiring issues such as shorts or open circuits, improper brake switch alignment, or problems within the transmission control module (TCM).
How can I diagnose the P0703 code?
To diagnose the P0703 code, start by checking the brake light switch for proper operation and alignment. Inspect the wiring and connectors for damage, and use a scan tool to check for additional codes that may provide more context.
What repairs are typically needed for a P0703 code?
Repairs may involve replacing a faulty brake light switch, fixing any damaged wiring or connectors, or reprogramming or replacing the transmission control module if it is determined to be defective.
Is the P0703 code serious?
Yes, the P0703 code can be serious because it can affect braking and shifting performance. It is advisable to address the issue promptly to ensure safe vehicle operation.
Can I drive my Cadillac with a P0703 code?
While it may be possible to drive with a P0703 code, it is not recommended as it can lead to unsafe driving conditions and potential damage to the transmission. It's best to have the issue diagnosed and repaired as soon as possible.
Will clearing the P0703 code fix the problem?
Clearing the P0703 code may temporarily turn off the check engine light, but it will not resolve the underlying issue. If the root cause is not fixed, the code will likely reappear.
How much does it usually cost to fix a P0703 code?
The cost to fix a P0703 code can vary widely depending on the cause of the issue. Simple repairs like replacing a brake light switch might cost $100-$200, while more complex issues could range from $200 to $600 or more depending on the necessary repairs.
Discuss the causes and fixes for P0703 Cadillac OBDII Code
Code P0703 Cadillac 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.