DTC P161A: Lost Communication with Alternator [01/2019 - 11/2022]: Description
WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| P161A | Lost Communication with Alternator | Generator assembly or ECM communication stops for approximately 17 minutes or more with the ignition switch ON. (1 trip detection logic) |
|
Charge warning is not displayed | DTC stored |