P0804 Buick Code - Skip Shift Lamp Control Circuit
Quick Answer
The P0804 Buick code refers to the Skip Shift Lamp Control Circuit. Common causes include Faulty skip shift lamp control circuit, Loose or corroded electrical connections related to the skip shift system, Defective skip shift lamp. 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
- P0804 Buick indicates Skip Shift Lamp Control Circuit.
- Common causes
- Common causes include Faulty skip shift lamp control circuit, Loose or corroded electrical connections related to the skip shift system, Defective skip shift lamp.
- 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 P0804 Buick Description
The P0804 Buick code refers to the Skip Shift Lamp Control Circuit. This code is commonly found in vehicles equipped with a skip shift feature, which is designed to improve fuel efficiency by forcing the driver to shift from first gear to fourth gear under certain driving conditions. The skip shift lamp is a visual indicator that notifies the driver when this shift is required.
Common Causes of P0804 Buick
- Faulty skip shift lamp control circuit.
- Loose or corroded electrical connections related to the skip shift system.
- Defective skip shift lamp.
- Issues with the skip shift solenoid.
- Malfunctioning PCM (Powertrain Control Module).
Symptoms of P0804 Buick
- Illumination of the check engine light on the dashboard.
- Skip shift lamp not illuminating when required.
- Difficulty shifting gears, particularly from first to fourth gear.
- Decreased fuel efficiency.
How to Fix P0804 Buick
- Begin by diagnosing the skip shift lamp control circuit using a diagnostic scanner to pinpoint the exact cause of the issue.
- Inspect the skip shift lamp and its connections for any visible damage or corrosion. Replace the lamp if necessary.
- Check the skip shift solenoid and its connections for proper operation and replace if faulty.
- Test the PCM to ensure it is functioning correctly and reprogram if needed to address any issues.
- Clear the diagnostic trouble codes and test drive the vehicle to verify that the skip shift feature is working properly.
Cost to Fix P0804 Buick
The typical repair costs for addressing the P0804 Buick code can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. Keep in mind that the final cost may vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, the diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.
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