STEP 1. Using scan tool (M.U.T.-III) CAN bus diagnostics
STEP 2. Using scan tool (M.U.T.-III) other system DTC
STEP 3. Check whether the DTC is set again.
Check again if the DTC is set in the BSW-ECU (master).(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3) Check if DTC is set.
Is the DTC set?
Replace the TCM. The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the TCM and the BSW-ECU (master) (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
STEP 4. Using scan tool (M.U.T.-III) other system DTC
STEP 5. Using scan tool (M.U.T.-III) other system DTC
STEP 6. Check whether the DTC is set again.
Check again if the DTC is set in the BSW-ECU (master).(1) Erase the DTC.
(2) Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(3) Check if the DTC is set.
Is the DTC set?
Replace the BSW-ECU (master). Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).