P0873 Honda Code - 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck OFF
Quick Answer
The Engine Control Module (ECM) monitors the 4th Clutch Transmission Fluid Pressure Switch. Common causes include Faulty 4th Clutch Transmission Fluid Pressure Switch, 4th Clutch Transmission Fluid Pressure Switch harness is open or shorted, 4th Clutch Transmission Fluid Pressure 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
- P0873 Honda indicates 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck OFF.
- Common causes
- Common causes include Faulty 4th Clutch Transmission Fluid Pressure Switch, 4th Clutch Transmission Fluid Pressure Switch harness is open or shorted, 4th Clutch Transmission Fluid Pressure 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 P0873 Honda Description
What are the Possible Causes of the DTC P0873 Honda?
- Faulty 4th Clutch Transmission Fluid Pressure Switch
- 4th Clutch Transmission Fluid Pressure Switch harness is open or shorted
- 4th Clutch Transmission Fluid Pressure Switch circuit poor electrical connection
How to Fix the DTC P0873 Honda?
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 P0873 Honda 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 P0873 Honda Code
1. What does the OBDII code P0873 mean on a Honda?
P0873 indicates an issue with the 4th clutch transmission fluid pressure switch, specifically a short circuit or a condition where the switch is stuck in the "OFF" position.
2. What are the common symptoms of the P0873 code on a Honda?
Common symptoms include the transmission not shifting properly, slipping gears, delayed engagement, or the vehicle entering limp mode. The check engine light may also illuminate.
3. What causes the P0873 code to appear on a Honda?
The code can be triggered by a faulty 4th clutch pressure switch, damaged wiring or connectors, low transmission fluid levels, or contamination in the transmission fluid.
4. Can low transmission fluid cause the P0873 code?
Yes, low or contaminated transmission fluid can impact pressure readings and lead to the P0873 code.
5. How do you diagnose the P0873 code on a Honda?
Diagnosis involves inspecting the wiring and connectors for damage, checking the transmission fluid level and condition, and testing the 4th clutch pressure switch for proper operation.
6. How serious is the P0873 code on a Honda?
The P0873 code is considered serious because it can affect vehicle drivability and transmission performance, potentially leading to further damage if not addressed.
7. Can I drive my Honda with the P0873 code?
Driving with the P0873 code is not recommended, as it can worsen transmission issues and lead to more expensive repairs.
8. How is the P0873 code typically fixed on a Honda?
Repairs may include replacing the 4th clutch pressure switch, repairing damaged wiring or connectors, or performing a transmission fluid flush and refill.
9. How much does it cost to repair the P0873 code on a Honda?
Repair costs can vary, but replacing a pressure switch typically ranges from $150 to $300, including parts and labor. Additional repairs, such as wiring fixes or fluid changes, may increase costs.
10. Can I fix the P0873 code on my Honda myself?
If you have experience working on transmissions, you may be able to replace the pressure switch or repair wiring yourself. However, a professional diagnosis is recommended to avoid misdiagnosis or further damage.
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