Lexus IS250 IS220d GSE20 ALE20 - CRUISE CONTROL
DTC P1630 Communication Error from VSC to ECM
DTC U0122 Lost Communication with Vehicle Dynamics Control Module
DESCRIPTION
The skid control ECU sends signals such as cruise control cancel demand signals and brake operation demand from ECM response signals to the ECM when the dynamic radar cruise control system is in operation.
| DTC No. | DTC Detection Condition | Trouble Area |
| P1630 | While the dynamic radar cruise control is either preparing for operation or operating, if communication data from the skid control ECU is logically inconsistent for a certain amount of time, the ECM records this logical error code | Communication circuit ABS & traction actuator (Skid control ECU) ECM |
| U0122 | While dynamic radar cruise control is either preparing for operation or operating, if communication data from the skid control ECU is invalid for a certain amount of time, the ECM records the communication cut off code | Communication circuit ABS & traction actuator (Skid control ECU) ECM |
INSPECTION PROCEDURE
- HINT:
- This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
| 1.CHECK CAN COMMUNICATION SYSTEM |
Refer to HOW TO PROCEED WITH TROUBLESHOOTING.
for LHD:
for RHD: