EGR Throttle Control Circuit High Voltage
The P213D code indicates that the Engine Control Module (ECM) has detected a high voltage condition in the exhaust gas recirculation (EGR) throttle control circuit. This circuit controls the EGR throttle actuator, which regulates the flow of exhaust gases back into the intake manifold. A high voltage reading suggests a short to power, a faulty actuator, or a wiring issue. This can lead to improper EGR operation, affecting engine performance and emissions.
01. Most Common Causes
- Short to power in the EGR throttle control circuit
- Faulty EGR throttle actuator
- Damaged wiring or connectors
- Corroded or loose electrical connections
- Failed ECM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Rough idle or stalling
- Poor fuel economy
- Failed emissions test
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for related codes.
Step 2: Visually inspect the EGR throttle actuator wiring and connectors for damage, corrosion, or loose connections.
Step 3: Test the EGR throttle actuator circuit for shorts to power or ground using a multimeter.
Step 4: Check the EGR throttle actuator resistance and compare to manufacturer specifications.
Step 5: If wiring and actuator are okay, test the ECM output signal to the actuator.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can cause reduced engine power, stalling, and potential damage to the EGR system. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
The cost to fix P213D typically ranges from $50 to $150 for diagnosis and repair, depending on the cause. Replacing the EGR throttle actuator can cost $100-$300, while wiring repairs are usually less.