DTC B1278 Combination Switch ECU Communication Stop: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is detected if communication between the windshield wiper switch and gateway ECU stops for more than 10 seconds.
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1278 |
Combination switch ECU communication stops |
- Windshield wiper switch
- Wire harness or connector
|