P2401 Diagnostic Trouble Code Discussion for February 2022
EVAP Leak Detection Pump Control Circuit Low
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| Help Request | Posted | |
| 2011 Toyota Corolla S 1.8L MIL Lamp on VIN: 2T1BU4EE0B P2401: Evap system leakage detection reference stuck off. Hi, I'm in the process of diagnosing this evap problem. Can anyone describe the power supply circuit to the leak detection pump? I have constant B+ at terminal 1 at the LDP. It never changes, even with scanner actuation. The ground at terminal 6 is ok. I c... |
February 14, 2022 | |
| 2011 Toyota Corolla S 1.8L MIL Lamp on VIN: 2T1BU4EE0B P2401: Evap system leakage detection reference stuck off. Hi, I'm in the process of diagnosing this evap problem. Can anyone describe the power supply circuit to the leak detection pump? I have constant B+ at terminal 1 at the LDP. It never changes, even with scanner actuation. The ground at terminal 6 is ok. I c... |
February 15, 2022 |
