DTC B1278 Combination Switch ECU Communication Stop: Description
WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is detected when communication between the turn signal switch (combination switch) and network gateway ECU stops for more than 10 seconds.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1278 | Combination switch ECU communication stop |
|