U0460: Invalid Data Received From Automated Driving System Interface Module B

What it means

A receiving module detected implausible data from the automated driving system interface module B (HMI/handover gateway between ADS and conventional vehicle systems). Status flags or take-over requests fail plausibility checks and are rejected.

At a glance

• Usually lights the warning light of the system that lost communication
• The engine or gearbox may go into limp mode

How it works

The receiving module checks messages from automated driving system interface module B, which carries status and handover information between the ADS and conventional vehicle systems. U0460 sets when module B's status flags or take-over requests fail plausibility checks and are rejected.

Common causes

Most likely first.

1. Module internal fault or sensor input drift
2. Software version mismatch after replacement
3. Gateway module routing CAN messages incorrectly

Symptoms

• Multiple warning lights may illuminate
• Affected modules may go into limp mode or shut down
• Specific functions inoperative depending on module
• Diagnostic tools may show communication faults

How to diagnose it

1. Scan all modules and record freeze-frame data to identify which module set U0460 and whether ADS, handover, or network faults accompany it.
2. Check live status and handover-request data from interface module B for missing, contradictory, or implausible flags.
3. Inspect module B's connectors, wiring, power, and grounds for loose terminals, damage, corrosion, or water intrusion.
4. Check whether an interface module replacement or software update preceded the fault, and verify the module's configuration and software compatibility.
5. If the data remains invalid, check CAN communication and gateway routing, then test interface module B using the manufacturer's diagnostic procedure.

Common fixes

• Repair loose, corroded, or damaged interface module B wiring or connectors.
• Correct the module's software or configuration mismatch after replacement or an update.
• Repair CAN wiring or gateway routing that affects interface module B messages.
• Repair a faulty input or connection if testing identifies the source of invalid status data.
• Replace automated driving system interface module B if its internal fault is confirmed.

Can I keep driving?

Do not rely on automated driving handover or status features while this fault is active; remain ready to control the vehicle yourself. If a handover alert appears, take control promptly and stop safely if the vehicle does not respond as expected.