P20BE Code - Reductant Heater 2 Performance
Quick Answer
As reductant will freeze at temperatures below -11°C (12°F), there are 2 reductant heaters located in the reductant tank. Common causes include Faulty Reductant Heater, Reductant Heater harness is open or shorted, Reductant Heater 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
- P20BE indicates Reductant Heater 2 Performance.
- Common causes
- Common causes include Faulty Reductant Heater, Reductant Heater harness is open or shorted, Reductant Heater 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 P20BE Description
The Diagnostic Trouble Code (DTC) will be set when the ECM indicates the reductant line heater resistance is greater or less than a calibrated value for greater than 8 s.
What are the Possible Causes of the DTC P20BE?
- Faulty Reductant Heater
- Reductant Heater harness is open or shorted
- Reductant Heater circuit poor electrical connection
- Faulty Reductant Pump and Sensor Assembly
- Faulty Reductant Control Module
How to Fix the DTC P20BE?
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 P20BE 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 P20BE code?
Need more information on how to fix the P20BE code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P20BE code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P20BE Chevrolet — Reductant Heater 2 Performance
- P20BE Ford — Reductant Heater 'B' Control Performance
- P20BE GMC — Reductant Heater 2 Performance
- P20BE Mercedes-Benz — Reductant Heater 'B' Control Circuit Performance
Frequently Asked Questions about P20BE Code
1. What are common symptoms of OBDII code P20BE (Reductant Heater 2 Performance)?
- Common symptoms include the illumination of the check engine light, reduced fuel efficiency, and potential issues with the vehicle's emission system.
2. What causes OBDII code P20BE to trigger?
- This code is typically triggered when the reductant heater 2 in the vehicle's selective catalytic reduction (SCR) system does not perform within the expected parameters.
3. How serious is OBDII code P20BE?
- While this code may not cause immediate drivability issues, it can lead to increased emissions and potential long-term damage to the vehicle's emission control system if left unrepaired.
4. What are some possible repair tips for OBDII code P20BE?
- Repair tips may include checking the reductant heater 2 for proper operation, inspecting the wiring and connections for any faults, and clearing the code to see if it reoccurs.
5. Can I drive my vehicle with OBDII code P20BE?
- It is generally safe to drive the vehicle with this code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further problems.
6. How can I diagnose OBDII code P20BE at home?
- Diagnosing this code may require a professional OBDII scanner to read the code, along with visual inspection of the reductant heater 2 components and related wiring.
7. Will resetting the OBDII code P20BE make it go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to return.
8. How much does it typically cost to repair OBDII code P20BE?
- The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve replacing the reductant heater 2, repairing wiring faults, or addressing other related components.
9. Can a DIY enthusiast fix OBDII code P20BE?
- While some DIY enthusiasts may be able to diagnose and repair this code, it is recommended to have the issue assessed by a professional mechanic to ensure proper resolution.
10. How long can I safely drive with OBDII code P20BE before getting it repaired?
- It is best to address this code promptly to prevent any potential damage to the emission control system and maintain optimal vehicle performance.
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