DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU (brake booster with master cylinder assembly) receives brake control request signals from the power management control ECU and driving support ECU assembly.
When the request signals received from the power management control ECU and driving support ECU assembly are not consistent, the skid control ECU (brake booster with master cylinder assembly) determines that a malfunction has occurred and sends a malfunction signal to the driving support ECU assembly.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1A41 | While power switch is on (IG), brake request signal from power management control ECU and driving support ECU assembly are inconsistent for 1 second |
|