Section 456 (Can Communication System - Diagnostics): Pre-Check
WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.
- DTC COMBINATION TABLE NOTE: Complete CHECK CAN BUS LINE , to confirm there is no disconnection, short circuit, short to +B or short to ground in CAN main bus lines, and then perform troubleshooting according to the DTC combination table.
- Confirm the mode according to the combination of output DTCs.
- Perform troubleshooting for the applicable mode.TROUBLESHOOTING CHART FOR APPLICABLE MODE
Output Code Suspect Area Refer To Skid control ECU communication stop mode (U0121/94, U0123/62, U0124/95 and U0126/63 are output simultaneously) - Open circuit for skid control ECU sub bus line or connector
- Skid control ECU
- When trouble still continues even after completing the troubleshooting above, perform all the following troubleshooting for the communication stop models above (the yaw rate sensor and steering sensor communication stop models).
SKID CONTROL ECU COMMUNICATION STOP MODE Yaw rate sensor communication stop mode (U0123/62 and U0124/95 are output simultaneously) - Open circuit for yaw rate sensor sub bus line or connector
- Yaw rate sensor
YAW RATE SENSOR COMMUNICATION STOP MODE Steering sensor communication stop mode (U0126/63 only) - Open circuit for steering sensor sub bus line or connector
- Steering sensor
STEERING SENSOR COMMUNICATION STOP MODE