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Home / DTC / U0460 — Invalid Data Received From Automated Driving System Interface Module “B”

U0460 — Invalid Data Received From Automated Driving System Interface Module “B”

Detailed page for trouble code U0460.

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U0460

Generic U — Network/User

Invalid Data Received From Automated Driving System Interface Module “B”

Brand: Generic
Type: U — Network/User
Views: UK: 13 EN: 27 RU: 14
AI status
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Page language: EN

Causes

  • Faulty or unresponsive Automated Driving System Interface Module B
  • Corrupt or malformed CAN/LIN/FlexRay messages from Module B
  • Damaged wiring, poor connector contact, or intermittent bus connection
  • Power supply or ground fault at Module B
  • Module software/firmware mismatch or corrupted calibration
  • Bus contention, high error rate, or missing/incorrect message timing

Symptoms

  • Automated driving / driver assistance features disabled or unavailable
  • Warning or fault message for autonomous driving system displayed
  • Reduced functionality of adaptive cruise, lane keep, or similar systems
  • Multiple communication-related DTCs present on scan tool
  • Intermittent or permanent loss of information from Module B (speed, steering, status)
  • Possible MIL or indicator lamps related to stability / ADAS

What to check

  • Connect a diagnostic scan tool, read all DTCs and freeze frame data; note which modules report the error
  • Verify vehicle battery voltage is within specification while key on/engine running
  • Visually inspect Module B connectors, harness for corrosion, damage, or water ingress
  • Check for blown fuses and proper power/ground at Module B with a multimeter
  • Monitor the vehicle network (CAN/LIN/FlexRay) for traffic, errors, and message frequency using a scope or data logger
  • Perform a wiggle test on wiring harness while monitoring network for errors

Signal parameters

  • Expected message ID(s) from Module B and their update intervals (e.g., CAN ID 0x2XX @ 20–100 ms)
  • Data length (DLC) and expected bitfield mapping for critical signals (steering angle, vehicle speed, brake torque)
  • Valid signal ranges and scaling (e.g., steering angle -720 to +720 deg, vehicle speed 0–300 km/h)
  • Message CRC or checksum fields (if used) and expected values or calculation method
  • Bus voltage levels: CAN_H ~2.5V idle, CAN_L ~2.5V idle; differential ~0V idle, ~2V dominant
  • Error counters: CAN error frames, transmit/receive error counts on failing node

Diagnostic algorithm

  1. Record DTCs and freeze frame. Note if U0460 is current or history and if other network DTCs are present.
  2. Verify battery voltage and inspect Module B power and ground circuits. Repair any low voltage or poor ground first.
  3. Visually inspect connectors and wiring for Module B; repair corroded pins or damaged insulation.
  4. With a suitable network tool, monitor the bus while reproducing the fault. Look for malformed frames, unexpected CAN IDs, missing periodic messages, or high error rates.
  5. If malformed messages are seen, trace wiring to identify intermittent connector or short to supply/ground. Perform wiggle tests while observing network traffic.
  6. Check transceiver function: measure CAN_H/CAN_L signals at Module B relative to ground and compare to a known-good node.
  7. If network traffic appears normal but data fields are invalid, attempt to query Module B with a diagnostic tool to verify software ID and configuration. Compare calibration file/part numbers to factory records.
  8. Reflash or update Module B software if an update or corruption is suspected. Follow manufacturer procedures and security/authentication steps.
  9. If Module B is unresponsive to diagnostics or continues to transmit invalid data after wiring and software verification, consider replacing Module B and verifying system operation.
  10. After repairs, clear codes and perform full system test under the same conditions that produced the fault to confirm the issue is resolved.

Likely causes

  • Open/short in the CAN bus or at Module B connectors
  • Module B lost power or ground intermittently causing corrupted transmissions
  • Module B firmware incompatible after a recent software update or replacement
  • Other ECU on the network sending malformed message ID or data
  • Failed Module B hardware (processor, transceiver or internal memory corruption)

Fault status

⚠️ Status
Invalid or out-of-range data received from Automated Driving System Interface Module B; automated driving features may be disabled.
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.5-4 hours

Similar codes

U0461 U0401 U0415 U0073 U0100 P0706
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