• The integrity of the remote tuner (RT) cannot be determined from a single part. When inspecting the remote tuner (RT), perform the following procedure.
1. Connect the M-MDS to the DLC-2.
2. Perform the DTC inspection for the connectivity master unit (CMU) and verify if any DTCs related to the remote tuner (RT) is detected. (See DTC INSPECTION.)
• If DTCs are detected, repair the malfunctioning location according to the applicable DTC troubleshooting.(Refer to the [DTC TABLE [CONNECTIVITY MASTER UNIT (CMU)]] in the workshop manual)