Using Hand-Held Tester
- Prepare the LEXUS hand-held tester.
- Connect the LEXUS hand-held tester to DLC3. See Fig 1.
- Turn the ignition switch ON and the LEXUS hand-held tester main switch ON.
- Use the LEXUS hand-held tester to check the DTCs, note them down. For operating instructions, see the LEXUS hand-held tester's instruction book.
- Confirm the details of the DLC3. See DIAGNOSTIC TROUBLE CODE INDEX table.
DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description |
|---|---|
| B1244 | Light Sensor Circuit Malfunction |
| B1268 | Back-Up Communication Bus Malfunction (Between Combination Switch ECU & Body No. 2 ECU) |
| B1268 | Back-Up Communication Bus Malfunction (Between Body No. 2 ECU & Body No. 4 ECU) |
| B2402 | Transistor Relay Overload Malfunction |
| B2403 | Transistor Relay Overheat Malfunction |