Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component (U030557)
DESCRIPTION
The millimeter wave radar sensor assembly receives vehicle information from the forward recognition camera via CAN communication.
If the vehicle information stored in the forward recognition camera differs from that stored in the millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U030557 | Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component | When the engine switch is on (IG), the vehicle information stored in the millimeter wave radar sensor assembly differs from that received from the forward recognition camera |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
-
When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly adjustment and front radar acceleration sensor calibration, and to clear the vehicle control history.
Click here
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- When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.
-
If the forward recognition camera has been replaced with a new one, forward recognition camera adjustment must be performed.
HINT:
Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.
One Time Recognition: Click here
Sequential Recognition: Click here
PROCEDURE
| 1. | CHECK FOR DTCs |
(a) Check for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes Chassis > Front Recognition Camera > Trouble Codes| Result | Proceed to |
|---|---|
| DTC U030557 (Front Radar Sensor) and U032257 (Front Recognition Camera) are output | A |
| Only DTC U030557 (Front Rader Sensor) is output | B |
| A | .gif) | REPLACE FORWARD RECOGNITION CAMERA |
| B | | REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
Lost Communication with Cruise Control Module Missing Message (U010487)
DESCRIPTION The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication. If a communication error is detected between the forward recognition camer ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Front Radar Sensor System: Parts Location
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vehicle Stability Control System: ABS Operates Before Necessary When Braking
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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