caution | Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal. |
OPERATION
The BSW-ECU (slave) communicates with the steering wheel sensor via the gateway-ECU, the BSW-ECU (master) and the CAN bus lines.
CHECK CONDITION
Ignition switch is in the ON position.
DIAGNOSTIC FUNCTION AND JUDGMENT CRITERIA
When the BSW-ECU (slave) receives any of the signals below via CAN bus lines, the ECU sets DTC C2333.
- Implausible signal from the steering wheel sensor
- Signal indicating internal error from the steering wheel sensor
- Invalid steering wheel angle signal for at least 1.5 seconds from the steering wheel sensor
TROUBLESHOOTING HINTS
- Improperly installed column switch assembly (integrated with steering wheel sensor)
- The steering wheel sensor (incorporated in column switch assembly) may be defective
- The CAN bus line may be defective
- The BSW-ECU (master/slave) may be defective