Problem Symptoms Table
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
LEXUS Link System
SYMPTOMS CHART
| Symptom | Suspected Area | See Procedure |
|---|---|---|
| Remote services disabled | Telephone ECU assembly | TERMINALS OF ECU |
| Bus buffer ECU (DTC U0198) | DTC U0198 LOST COMMUNICATION WITH TELEMATIC CONTROL MODULE | |
| Main body ECU (DTC U0148) | DTC U0148 LOST COMMUNICATION WITH GATEWAY "C" | |
| ECU power source circuit | ECU POWER SOURCE CIRCUIT | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| Harness or connector (DTC 5-1) | DTC 5-1 LEXUS LINK COMMUNICATION ERROR |