P0874 Code - Transmission Fluid Pressure Sensor/Switch 'C' Circuit Intermittent
Quick Answer
The P0874 code indicates a problem with the transmission fluid pressure sensor/switch 'C' circuit in the vehicle. Common causes include Faulty transmission fluid pressure sensor/switch, Wiring or connector issues, Problems with the transmission control module. 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
- P0874 indicates Transmission Fluid Pressure Sensor/Switch 'C' Circuit Intermittent.
- Common causes
- Common causes include Faulty transmission fluid pressure sensor/switch, Wiring or connector issues, Problems with the transmission control module.
- 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 P0874 Description
The P0874 code indicates a problem with the transmission fluid pressure sensor/switch 'C' circuit in the vehicle. This sensor is responsible for monitoring the fluid pressure within the transmission and sending this information to the vehicle's engine control module. An intermittent issue with this sensor can lead to incorrect pressure readings being reported, which can affect the transmission's operation.
Common Causes of P0874
- Faulty transmission fluid pressure sensor/switch.
- Wiring or connector issues.
- Problems with the transmission control module.
- Low transmission fluid levels.
- Internal transmission damage.
Symptoms of P0874
- Harsh shifting between gears.
- Transmission slipping.
- Delayed engagement when shifting.
- Illuminated check engine light.
- Decreased fuel efficiency.
How to Fix P0874
- Begin by conducting a thorough inspection of the transmission fluid pressure sensor/switch 'C' circuit to identify any visible damage or loose connections.
- Test the sensor's functionality using a multimeter to check for proper voltage readings.
- Replace the transmission fluid pressure sensor/switch if it is found to be faulty.
- Inspect the wiring and connectors for any signs of damage or corrosion, repairing or replacing as necessary.
- Clear the diagnostic trouble codes from the vehicle's system and test drive to ensure the issue has been resolved.
Cost to Fix P0874
The cost of repairing a transmission fluid pressure sensor/switch 'C' circuit intermittent issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, parts for this repair can range from $50 to $200, while labor costs may be between $100 and $300. Overall, the total repair cost could be in the range of $150 to $500. It's advisable to consult with a professional mechanic to get an accurate estimate based on your vehicle's specific needs and location.
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Code P0874 Information for Specific Makes
- P0874 Dodge — Transmission Fluid Pressure Sensor/Switch 'C' Circuit Intermittent
Frequently Asked Questions about P0874 Code
1. What does the OBDII code P0874 mean?
P0874 indicates an intermittent issue with the Transmission Fluid Pressure Sensor/Switch 'C' circuit, which monitors the hydraulic pressure in the transmission.
2. What are the common symptoms of code P0874?
Symptoms may include erratic shifting, transmission slipping, poor acceleration, the transmission stuck in one gear, or the Check Engine Light being illuminated.
3. What causes the P0874 code to be triggered?
Common causes include a faulty transmission fluid pressure sensor, damaged wiring or connectors, low or dirty transmission fluid, or an internal transmission issue.
4. Can I still drive my vehicle with the P0874 code?
It’s not recommended, as continued driving can cause further damage to the transmission and result in unsafe driving conditions.
5. How do I diagnose the P0874 code?
Diagnosis involves checking the transmission fluid condition, inspecting the wiring and connectors for damage, and testing the transmission fluid pressure sensor for proper operation.
6. How is the P0874 code typically fixed?
Repairs may include replacing the faulty pressure sensor, repairing or replacing damaged wiring, cleaning or replacing the transmission fluid, or addressing internal transmission issues.
7. Can low transmission fluid cause the P0874 code?
Yes, low or dirty transmission fluid can cause erratic pressure readings, leading to the P0874 code.
8. Does the P0874 code always mean the pressure sensor is bad?
No, the issue could also stem from wiring problems, poor connections, or internal transmission faults, not just the sensor itself.
9. How much does it cost to fix the P0874 code?
Repair costs vary depending on the underlying issue but can range from $150 to $400 for a sensor replacement and much more if internal transmission repairs are needed.
10. Can a software update fix the P0874 code?
In some cases, a transmission control module (TCM) software update may resolve the issue, but this depends on the vehicle make and model.
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