Pre-Crash Safety System - Power Source Circuit
This circuit supplies power to the seat belt control ECU when the ignition switch is ON.
The distance control ECU receives signals from the ECM via the CAN communication line.
When DTC B2074 is stored, DTC B1655 is also output.
The ECM receives vehicle speed information from the master cylinder solenoid (skid control ECU) through the combination meter.
This DTC is stored when there is a difference in the vehicle speed information from the ECM and master cylinder solenoid (skid control ECU).