Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
HINT
- Use the table below to help determine the cause of the problem symptom 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
LEXUS Link system
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See Procedure |
|---|---|---|
| Remote services disabled | Mayday 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" | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| Harness or connector (DTC 5-1) | DTC 5-1 LEXUS LINK COMMUNICATION ERROR |