Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
OPERATION
The BSW-ECU (master) communicates with the transmission control module via the gateway-ECU and CAN bus lines.
CHECK CONDITION
Ignition switch is in the "ON" position.
DIAGNOSTIC FUNCTION AND TROUBLE JUDGMENT
When the BSW-ECU (master) receives an invalid selector lever position signal from the transmission control module for at least 1.5 seconds, the ECU sets DTC C2336.
TROUBLESHOOTING HINTS
The transmission system fails
Malfunction of BSW-ECU (master)
DIAGNOSIS
1. Check if DTC P0705 is set in the transmission control module.
2. Using scan tool (M.U.T.-IIISE), check transmission control module system data list