P213D — Exhaust Gas Recirculation Throttle Control Circuit “B” High #

The description of this Diagnostic Trouble Code (DTC) may vary depending on the vehicle manufacturer (OEM). Always refer to your vehicle’s official service documentation for the precise definition used by your make and model.

• Exhaust Gas Recirculation Throttle Control Circuit “B” High (General, SAE/Generic)
• EGR Throttle Control Circuit “B” High Voltage (Ford)
• EGR Throttle Valve Circuit High (Bank 2) (GM/Chevrolet)
• EGR Throttle Actuator Control Circuit High (Toyota)
• Recirculating Valve Throttle High Signal (Volkswagen/Audi)

Summary of Code P213D #

P213D indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an abnormally high voltage in the control circuit “B” of the Exhaust Gas Recirculation (EGR) throttle system. The EGR system recirculates a portion of exhaust gases back into the engine intake to reduce nitrogen oxide (NOx) emissions and control combustion temperatures. The “throttle” within the EGR system is an electronically controlled valve that regulates this flow. When the voltage measured in circuit “B” (typically one of two separate sensor or actuator circuits for the EGR throttle) is higher than the expected range, the ECM will set this code to alert the driver or technician to a potential fault. This can impact both emissions and engine performance, so prompt diagnosis is recommended.

Common Symptoms for DTC P213D #

When code P213D is present, you may notice several symptoms affecting drivability or emissions. In some vehicles, the Check Engine Light may be the only obvious sign, while in others, performance issues may be more pronounced. Symptoms can include:

• Illuminated Check Engine Light (CEL)
• Rough idle or engine stalling, especially at low speeds
• Reduced engine power, hesitation, or surging on acceleration
• Poor fuel economy
• Failed emissions test
• In some cases, noticeable exhaust odor due to incomplete combustion

Likely Causes for Code P213D #

Several issues can trigger a high voltage reading in the EGR throttle control circuit “B.” Some are more frequent than others, but all should be considered during diagnosis. The most common causes, in descending order of likelihood, include:

1. Faulty EGR throttle actuator (the electronic control valve may be stuck or shorted internally)
2. Wiring problems (short to power, damaged insulation, or corroded connectors in the EGR throttle circuit “B”)
3. Failed EGR position sensor (integrated with or separate from the throttle actuator)
4. ECM/PCM malfunction (less common, but possible if all other components test OK)
5. Poor ground or power supply to the EGR throttle assembly

Step-by-Step Diagnosis for P213D #

Diagnosing P213D requires a systematic approach to pinpoint whether the problem lies in the actuator, wiring, or control module. Here’s a general step-by-step process followed by master technicians:

1. Use a scan tool to confirm the presence of P213D and check for related codes (especially other EGR or throttle codes).
2. Visually inspect the EGR throttle wiring and connectors for corrosion, damage, or loose connections.
3. Measure voltage at the EGR throttle control circuit “B” with the key ON, engine OFF. Compare to OEM specifications.
4. If voltage is above spec, disconnect the actuator. Check if voltage drops; if it does, suspect the actuator. If not, suspect wiring.
5. Perform a continuity and short-to-power/ground test on the circuit “B” wiring from the ECM to the actuator.
6. If wiring checks out, test or substitute the EGR throttle actuator following OEM procedures.
7. If all components are good, consider ECM/PCM diagnosis or reprogramming as a last step.

Possible Repairs for P213D #

Once the root cause is identified, the following repairs are typically effective for resolving P213D:

• Replace the EGR throttle actuator if internal failure or short is found
• Repair or replace damaged wiring/connectors in the EGR throttle control circuit “B”
• Replace the EGR position sensor if separate and faulty
• Repair poor grounds or power supply to the EGR throttle assembly
• Reprogram or replace the ECM/PCM (rare, only after all other options are exhausted)

Is It Safe to Drive with Code P213D? #

Limited — While your vehicle may still be drivable with code P213D, it is not recommended to ignore this issue for long. Prolonged driving can lead to poor engine performance, increased emissions, and possible engine stalling. If you notice severe symptoms like stalling, hesitation, or a drastic loss of power, avoid driving and seek immediate repairs to prevent further damage or safety issues.

Vehicles Most Commonly Affected by P213D #

Code P213D is observed in a variety of vehicles equipped with electronically controlled EGR systems. Some makes and models where this code appears more frequently include:

• Ford (Focus, Fusion, F-150, Escape)
• Chevrolet / GM (Silverado, Cruze, Equinox, Malibu)
• Toyota (Camry, Corolla, RAV4, Tacoma)
• Volkswagen / Audi (Jetta, Passat, Golf, A4)
• Honda (Accord, Civic – select years with EGR throttle assemblies)

Frequent Mistakes & Best Practices for P213D #

Misdiagnosing P213D can lead to unnecessary part replacements or overlooked wiring issues. Here are some common pitfalls, and how to avoid them:

• Replacing the EGR throttle actuator without first checking wiring and connectors
• Overlooking related codes that may point to a different root cause
• Failing to use OEM service data for voltage and resistance specs
• Ignoring signs of connector corrosion or water intrusion
• Not clearing the code or performing a test drive after repairs to confirm success

Quick FAQ for Code P213D #

Here are answers to common questions about P213D:

• Q: Can a dirty EGR valve cause P213D?
  A: Not usually. P213D is triggered by a high voltage in the control circuit, more often linked to electrical faults than simple carbon buildup.
• Q: Will replacing the EGR throttle actuator fix the issue?
  A: Only if the actuator itself is faulty. Always test the wiring and check for shorts before replacing expensive parts.