DTC P1630 Communication Error from VSC to ECM; DTC U0122 Lost Communication with Vehicle Dynamics Control Module: Description
WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
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 TROUBLE DETECTION CONDITION
| 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 |
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| 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 this communication cut off code |
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