P213B — Exhaust Gas Recirculation Throttle Control Circuit “B” #

Note: The wording of this code may vary depending on the vehicle manufacturer (OEM).

• Exhaust Gas Recirculation Throttle Control Circuit B (Ford, GM, FCA/Stellantis)
• EGR Throttle Actuator Circuit B Malfunction (Toyota, Honda, Hyundai)
• EGR Throttle Control Circuit B Performance (Volkswagen, Audi)

Summary of Code P213B #

The P213B diagnostic trouble code (DTC) indicates an issue in the Exhaust Gas Recirculation (EGR) Throttle Control Circuit “B”. The EGR system is designed to reduce nitrogen oxide (NOx) emissions by recirculating a measured amount of exhaust gases back into the intake manifold. The EGR throttle valve is electronically controlled and its position is monitored by the Engine Control Module (ECM). When the ECM detects a fault in the “B” circuit—often referencing a specific part of a dual-circuit or redundant system—it stores a P213B code and may activate the check engine light. Depending on the OEM, this code could relate to wiring, sensor, or actuator problems within the EGR throttle system.

Common Symptoms for Code P213B #

A P213B code can cause a range of symptoms, some subtle and others more obvious. Drivers might notice performance issues or illumination of the check engine light. Ignoring these symptoms could lead to increased emissions or engine damage over time.

• Check engine light (MIL) illuminated
• Rough idle or engine stalling
• Decreased engine performance or hesitation during acceleration
• Increased fuel consumption
• Failed emissions test or higher tailpipe emissions
• Possible “limp mode” activation (reduced power output)

Probable Causes for Code P213B #

There are several common reasons why the P213B code is set. The following list is ordered from most to least frequent, based on field experience and repair data:

1. Faulty EGR throttle actuator or motor
2. Wiring or connector issues in the EGR throttle control “B” circuit (such as corrosion, open, or shorted wires)
3. Failed EGR throttle position sensor
4. ECM or PCM (Powertrain Control Module) malfunction
5. Excessive carbon buildup in EGR throttle valve, causing sticking or improper movement
6. Poor ground or power supply to the EGR system

Step-by-Step Diagnostic for P213B #

Diagnosing this code requires a methodical approach, both to avoid unnecessary parts replacement and to identify the root cause efficiently. Technicians should have access to wiring diagrams, a scan tool, and a digital multimeter.

• 1. Confirm the code and check for other related codes (especially other EGR or throttle control codes).
• 2. Perform a visual inspection of the EGR throttle actuator, wiring harness, and connectors for signs of damage, corrosion, or loose connections.
• 3. Test the EGR throttle actuator using the scan tool’s actuator test function, if available. Observe for proper movement and response.
• 4. Measure voltage and ground at the EGR throttle actuator using a multimeter. Compare to OEM specifications.
• 5. Check for excessive carbon buildup or mechanical sticking in the EGR throttle valve by removing and inspecting the unit.
• 6. Inspect the EGR throttle position sensor readings on the scan tool. Are they within normal range?
• 7. If all components check out, test the ECM/PCM outputs or replace with a known-good module if possible.

Possible Repairs for Code P213B #

Repairs for a P213B code should always be based on a thorough diagnosis. Simply clearing the code without addressing the underlying problem will likely result in its return.

• Replace faulty EGR throttle actuator or motor
• Repair or replace damaged wiring/connectors in the EGR throttle control “B” circuit
• Clean or replace EGR throttle valve if carbon buildup is found
• Replace EGR throttle position sensor if out of range or non-responsive
• Correct poor ground or power supply to the EGR system
• Reprogram or replace ECM/PCM if diagnosed as defective (rare)

Is It Safe to Drive with Code P213B? #

Limited: You can usually drive with a P213B code, but it is not recommended for an extended period. The engine may experience reduced performance, higher emissions, or even enter “limp mode.” In rare cases, continued driving can cause further damage to the EGR system or affect engine longevity. It’s best to have the issue diagnosed and repaired as soon as possible.

Vehicles Most Commonly Affected by P213B #

While P213B can appear in a variety of makes and models, it is more frequently observed on modern vehicles equipped with electronic EGR throttle control. This includes, but is not limited to:

• Ford Focus, Escape, F-150 (2013+)
• Chevrolet Silverado, Cruze, Malibu (2012+)
• Ram 1500, Jeep Grand Cherokee (2014+)
• Toyota Camry, RAV4, Corolla (2015+)
• Honda Accord, Civic (2016+)
• Volkswagen Jetta, Passat (2014+)
• Hyundai Sonata, Tucson (2017+)

Common Mistakes & Best Practices for P213B #

Even experienced technicians can make mistakes when diagnosing or repairing P213B. Avoiding these pitfalls will save time and money:

• Replacing the EGR actuator without testing wiring or sensor integrity
• Overlooking simple wiring faults like corrosion or loose pins
• Neglecting to clean the EGR throttle valve, resulting in repeated failures
• Failing to check for related codes that could indicate a broader system issue
• Not following OEM-specific diagnostic procedures

Express FAQ for Code P213B #

Got a quick question about P213B? Here are answers to the most common concerns:

• Q: Can I clear this code and keep driving?
  A: Clearing the code without fixing the cause will only temporarily turn off the check engine light. The problem will return, and emissions may increase.
• Q: Is this an expensive repair?
  A: Costs vary. Sometimes a simple wiring repair or cleaning the EGR valve solves it; other times, actuator or sensor replacement is needed. Labor time increases if the EGR system is hard to access.