P1E28 Honda Code - Brake Fluid Pressure Sensor PU Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) monitors the Brake Fluid Pressure Sensor PU. Common causes include Faulty Brake Fluid Pressure Sensor PU, Brake Fluid Pressure Sensor PU harness is open or shorted, Brake Fluid Pressure Sensor PU 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
- P1E28 Honda indicates Brake Fluid Pressure Sensor PU Circuit Low Voltage.
- Common causes
- Common causes include Faulty Brake Fluid Pressure Sensor PU, Brake Fluid Pressure Sensor PU harness is open or shorted, Brake Fluid Pressure Sensor PU 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 P1E28 Honda Description
What are the Possible Causes of the DTC P1E28 Honda?
- Faulty Brake Fluid Pressure Sensor PU
- Brake Fluid Pressure Sensor PU harness is open or shorted
- Brake Fluid Pressure Sensor PU circuit poor electrical connection
How to Fix the DTC P1E28 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 P1E28 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 P1E28 Honda Code
1. What does the OBDII code P1E28 mean on a Honda?
P1E28 indicates a "Brake Fluid Pressure Sensor PU Circuit Low Voltage," meaning the sensor detecting brake fluid pressure is not receiving or sending proper voltage signals.
2. What are the common symptoms of the P1E28 code in a Honda?
Symptoms may include the brake warning light illuminating, reduced brake performance, ABS malfunction, or the vehicle entering a fail-safe or limp mode.
3. What causes the P1E28 code to appear in a Honda?
The code can be triggered by faulty brake fluid pressure sensors, damaged wiring or connectors, low brake fluid levels, or issues with the vehicle’s Electronic Control Unit (ECU).
4. Can I still drive my Honda with a P1E28 code?
It’s not recommended to drive with this code active, as it may indicate compromised braking performance and affect vehicle safety.
5. How do I diagnose the P1E28 code on a Honda?
Start by inspecting the brake fluid level, checking the sensor’s wiring and connectors for damage, and using a multimeter to test the voltage at the sensor.
6. How do I fix the P1E28 code in my Honda?
Repairs may include replacing the brake fluid pressure sensor, repairing or replacing damaged wiring, refilling brake fluid, or recalibrating the ECU.
7. Can low brake fluid cause the P1E28 code?
Yes, low brake fluid levels can cause the sensor to read incorrect pressures, potentially triggering the P1E28 code.
8. How much does it cost to fix the P1E28 code on a Honda?
Repair costs vary, but replacing a brake fluid pressure sensor typically costs $150–$300, depending on parts and labor rates.
9. Can a dead or weak battery cause the P1E28 code?
Yes, a weak or dying battery can result in low voltage to the sensor, potentially triggering this code.
10. Do I need to reset the ECU after fixing the P1E28 code?
Yes, after repairs, it’s necessary to clear the code using an OBDII scanner and test drive the vehicle to ensure the issue is resolved.
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