Diagnostic Trouble Code Table
WARNING: This page is about a different car, the 2004 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE TABLE
| DTC | Description |
|---|---|
| DTC B1244 | LIGHT SENSOR CIRCUIT MALFUNCTION |
| DTC B1268 | BACK-UP COMMUNICATION BUS MALFUNCTION |
| DTC B2402, B2403 | TRANSISTOR RELAY OVERLOAD MALFUNCTION |
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the Fig 1and proceed to the appropriate page.