P103F Chevrolet Code - Reductant Pump Driver High Temperature
Quick Answer
The selective catalytic reduction system reduces Oxides of Nitrogen (NOx) emissions by injecting a metered amount of reductant into the exhaust gas stream entering the selective catalytic reduction catalyst. Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly 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
- P103F Chevrolet indicates Reductant Pump Driver High Temperature.
- Common causes
- Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly 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 P103F Chevrolet Description
What are the Possible Causes of the DTC P103F Chevrolet?
- Faulty Reductant Pump and Sensor Assembly
- Reductant Pump and Sensor Assembly harness is open or shorted
- Reductant Pump and Sensor Assembly circuit poor electrical connection
- Faulty Reductant Control Module
How to Fix the DTC P103F Chevrolet?
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 P103F Chevrolet 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 P103F Chevrolet Code
1. What does the OBDII code P103F mean on a Chevrolet?
The P103F code indicates that the reductant (DEF) pump driver has detected an abnormally high temperature, which could affect the operation of the vehicle’s DEF system.
2. What are the common symptoms of a P103F code?
Symptoms may include a check engine light, DEF system warnings, reduced engine performance, or the vehicle entering a limp mode.
3. What causes the P103F code to appear?
The main causes include a malfunctioning DEF pump, a faulty temperature sensor, wiring issues like shorts or corrosion, or excessive heat in the DEF system.
4. Can I drive my Chevrolet with a P103F code?
Driving with this code is possible but not recommended. Prolonged operation may lead to decreased performance or emissions compliance issues.
5. How do I diagnose a P103F code?
Start by using a scan tool to confirm the code, inspect the DEF pump and wiring for damage, and test the temperature sensor for proper operation.
6. How can I fix the P103F code on my Chevrolet?
Repairs may include replacing the DEF pump, repairing wiring or connectors, or replacing a faulty temperature sensor in the reductant system.
7. Can a software update fix the P103F code?
In some cases, a software update from the manufacturer may address calibration issues in the DEF system. Check with your dealership.
8. How much does it cost to fix the P103F code?
Repair costs vary, but replacing the DEF pump can range from $500 to $1,500, while simpler repairs like fixing wiring may cost significantly less.
9. What happens if the P103F code is ignored?
Ignoring this code can lead to further damage to the DEF system, reduced fuel efficiency, and potential failure to meet emissions standards.
10. Can extreme weather cause the P103F code?
Yes, extremely high temperatures or poor heat dissipation around the DEF system can contribute to the code appearing.
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