Steering. Lexus Is250, Is220D. Gse20 Ale20
Power Steering. Lexus Is250, Is220D. Gse20 Ale20
DTC U0105 Lost Communication with ECM |
DTC U0121 Lost Communication with Anti-lock Brake System (ABS) Control Module |
DESCRIPTION
The power steering ECU assembly receives signals from the ECM, skid control ECU, and steering control ECU via CAN communication.| DTC No. | DTC Detection Item | Inspection Area |
| U0105 | ECM communication error | CAN communication system ECM (when only U0105 is output) |
| U0121 | Skid control ECU communication error | CAN communication system Skid control ECU (when only U0121 is output) |
- HINT:
- When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.
- If the power steering ECU assembly detects DTC U0121 only, it adjusts the amount of power assistance for a speed of 100 km/h (62 mph) and continues system control.
INSPECTION PROCEDURE
Refer to the U0105 (CAN communication system (4GR-FSE LHD)) (Click here).Refer to the U0105 (CAN communication system (4GR-FSE RHD)) (Click here).
Refer to the U0105 (CAN communication system (2AD-FHV LHD)) (Click here).
Refer to the U0105 (CAN communication system (2AD-FHV RHD)) (Click here).
Refer to the U0121 (CAN communication system (4GR-FSE LHD)) (Click here).
Refer to the U0121 (CAN communication system (4GR-FSE RHD)) (Click here).
Refer to the U0121 (CAN communication system (2AD-FHV LHD)) (Click here).
Refer to the U0121 (CAN communication system (2AD-FHV RHD)) (Click here).