P0504 Cadillac Code - TCC Brake Switch/Cruise Control Input Mismatch
Quick Answer
The Engine Control Module (ECM) monitors the stop lamp switch signal circuit and the Torque Converter Clutch (TCC) Brake Switch/Cruise Control release signal circuit every 100 ms. Common causes include Faulty Torque Converter Clutch (TCC)/Cruise Control Release Switch, TCC/Cruise Control Release Switch harness is open or shorted, TCC/Cruise Control Release 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
- P0504 Cadillac indicates TCC Brake Switch/Cruise Control Input Mismatch.
- Common causes
- Common causes include Faulty Torque Converter Clutch (TCC)/Cruise Control Release Switch, TCC/Cruise Control Release Switch harness is open or shorted, TCC/Cruise Control Release 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.
Code P0504 Cadillac Description
What are the Possible Causes of the DTC P0504 Cadillac?
- Faulty Torque Converter Clutch (TCC)/Cruise Control Release Switch
- TCC/Cruise Control Release Switch harness is open or shorted
- TCC/Cruise Control Release Switch circuit poor electrical connection
- Faulty Stop Lamp Switch
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0504 Cadillac?
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 P0504 Cadillac 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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Frequently Asked Questions about P0504 Cadillac Code
1. What are the common symptoms of OBDII code P0504 on a Cadillac related to the TCC Brake Switch/Cruise Control Input Mismatch?
- Common symptoms include the Check Engine Light being illuminated, issues with the cruise control system, and potential problems with the transmission shifting smoothly.
2. What could be causing the TCC Brake Switch/Cruise Control Input Mismatch error code (P0504) on a Cadillac?
- The error code P0504 on a Cadillac is typically caused by a malfunction in the brake switch or its wiring, which can lead to a mismatch in the signals received by the transmission control module.
3. How can I diagnose the TCC Brake Switch/Cruise Control Input Mismatch issue on my Cadillac?
- You can diagnose the issue by checking the brake switch for proper operation, inspecting the wiring for any damage or loose connections, and using a diagnostic scanner to read the error code.
4. Can a faulty brake switch cause the P0504 error code on a Cadillac?
- Yes, a faulty brake switch is a common cause of the P0504 error code on a Cadillac, as it can lead to a mismatch in the signals sent to the transmission control module.
5. What are some repair tips for resolving the P0504 TCC Brake Switch/Cruise Control Input Mismatch code on a Cadillac?
- Repair tips include checking and replacing the brake switch if necessary, inspecting and repairing any damaged wiring, and clearing the error code with a diagnostic scanner after the repairs are completed.
6. Is it safe to continue driving my Cadillac with the P0504 error code related to the TCC Brake Switch/Cruise Control Input Mismatch?
- While it may be safe to drive the vehicle with this error code, it is recommended to address the issue promptly to prevent potential problems with the transmission or other related systems.
7. How much does it typically cost to repair the P0504 error code on a Cadillac related to the TCC Brake Switch/Cruise Control Input Mismatch?
- The cost of repairing the P0504 error code can vary depending on the cause of the issue, but it may range from around $100 to $300 for parts and labor.
8. Can the P0504 error code on a Cadillac be reset without fixing the underlying issue?
- While the error code can be cleared with a diagnostic scanner, it is important to address the root cause of the problem to prevent it from recurring in the future.
9. Are there any recalls or service bulletins related to the P0504 error code on Cadillac vehicles?
- It is recommended to check with a Cadillac dealership or online resources for any recalls or service bulletins related to the P0504 error code to see if there are any known issues or remedies provided by the manufacturer.
10. What are the potential long-term effects of ignoring the P0504 error code on a Cadillac?
- Ignoring the P0504 error code related to the TCC Brake Switch/Cruise Control Input Mismatch can lead to further malfunctions in the transmission system, decreased fuel efficiency, and potentially unsafe driving conditions due to issues with the cruise control functionality.
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