DTC U0100: Lost Communication with ECM / PCM "A": Description
WARNING: This page is about a different car, the 2011 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
The power management control ECU receives shift position information from 2 sources. It receives a shift position P signal from the shift lock control unit assembly via a direct line, and shift position information from the ECM via CAN. If the information from these 2 sources is inconsistent, this DTC will be stored.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0100 | Shift position information from ECM (via CAN) and shift lock control unit assembly (direct line) is inconsistent |
|