The P213C: Exhaust Gas Recirculation (EGR) Throttle Control Circuit ‘B’ Low indicates that the voltage in the EGR throttle control circuit ‘B’ is lower than expected. This could be caused by a faulty EGR throttle control, wiring issues, or an electrical fault affecting the performance of the system.
P213C – Quick Overview
| Code | Information |
|---|---|
| Meaning | P213C: Exhaust Gas Recirculation Throttle Control Circuit ‘B’ Low |
| Is it serious? | Yes, it can cause improper EGR function, leading to performance issues and increased emissions. |
| Possible causes | – Low voltage in the EGR throttle control circuit ‘B’ – Faulty EGR throttle control – Wiring issues |
| How to diagnose? | – Measure voltage in the EGR throttle control circuit ‘B’ – Test the EGR throttle control – Inspect wiring and connections |
P213C Meaning
The P213C code indicates that the EGR throttle control circuit ‘B’ is experiencing low voltage, which can prevent the proper operation of the exhaust gas recirculation system. This could lead to increased emissions, poor engine performance, and drivability issues. The cause is often linked to faulty wiring or a malfunctioning EGR throttle control.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for other related codes that may provide further information about the EGR system’s overall condition. | OBD-II Scanner |
| Measure Voltage in the Circuit | Use a multimeter to measure the voltage in the EGR throttle control circuit ‘B’. Compare the readings with manufacturer specifications to determine if the voltage is too low. | Multimeter |
| Test the EGR Throttle Control | Use a diagnostic tool to test the operation of the EGR throttle control and ensure it is functioning within the expected parameters. Replace if necessary. | Diagnostic Tool |
| Inspect Wiring and Connections | Visually inspect the wiring and connectors leading to the EGR throttle control ‘B’ for signs of damage, loose connections, or corrosion. Repair or replace as necessary. | Flashlight, Multimeter |
| Check for Shorts or Open Circuits | Perform continuity tests on the wiring leading to the EGR throttle control ‘B’ to detect any shorts or open circuits that could cause low voltage. Repair as needed. | Multimeter, Wiring Diagram |
| Clear the Code and Test Drive | After repairs or adjustments, clear the code using an OBD-II scanner and take the vehicle for a test drive to confirm the issue is resolved. | OBD-II Scanner |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P213C code has not returned. | OBD-II Scanner |
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