P16E5 2014 Chevrolet Silverado Code - Sensor Communication Circuit 3 High Voltage
Quick Answer
The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted. 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
- P16E5 2014 Chevrolet Silverado indicates Sensor Communication Circuit 3 High Voltage.
- Common causes
- Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted.
- 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 P16E5 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P16E5 2014 Chevrolet Silverado?
- Low or no fuel
- Faulty Fuel Rail Pressure (FRP) Sensor
- Fuel Rail Pressure harness is open or shorted
- Fuel Rail Pressure circuit poor electrical connection
- Faulty Fuel Pump
How to Fix the DTC P16E5 2014 Chevrolet Silverado?
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 P16E5 2014 Chevrolet Silverado 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.
Need more information about the P16E5 2014 Chevrolet Silverado code?
Need more information on how to fix the P16E5 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P16E5 2014 Chevrolet Silverado Code
1. What does the OBDII code P16E5 mean on a 2014 Chevrolet Silverado?
P16E5 indicates a "Sensor Communication Circuit 3 High Voltage" issue, which means the ECM (Engine Control Module) is detecting an abnormally high voltage in the specified sensor communication circuit.
2. What are the common symptoms of code P16E5 in a 2014 Chevrolet Silverado?
Symptoms may include the check engine light turning on, reduced engine performance, poor fuel efficiency, or erratic engine behavior.
3. What causes the P16E5 code to appear on a 2014 Silverado?
Potential causes include a short to power in the circuit, a faulty sensor, damaged wiring or connectors, or a malfunctioning ECM.
4. Can I drive my 2014 Chevrolet Silverado with the P16E5 code?
Driving with this code is not recommended, as it may lead to further engine or electrical issues and reduced performance.
5. How do I diagnose the P16E5 code on my Silverado?
Start by checking the wiring and connectors for damage, test the affected sensor for proper operation, and inspect the ECM for any faults.
6. Which sensor is involved in the P16E5 code for the 2014 Silverado?
The specific sensor depends on the circuit labeled "Communication Circuit 3"; refer to the vehicle’s service manual or a scan tool for details.
7. How can I fix the P16E5 code on my 2014 Chevrolet Silverado?
Repairs may include replacing damaged wiring, cleaning or replacing corroded connectors, replacing the faulty sensor, or reprogramming/repairing the ECM if necessary.
8. How much does it cost to repair the P16E5 code on a Silverado?
Repair costs vary depending on the root cause but typically range from $100 for minor wiring repairs to $500 or more if the ECM or sensor needs replacement.
9. Can a low battery cause the P16E5 code to trigger?
While rare, a low or unstable battery voltage can sometimes affect sensor communication circuits. Test the battery and charging system as part of the diagnostic process.
10. Do I need a professional mechanic to fix the P16E5 code?
If you’re experienced with automotive diagnostics and have the proper tools, you may be able to fix it yourself. Otherwise, consulting a professional is recommended for accurate troubleshooting and repair.
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