U05BE

Code

Generic U — Network/User

Invalid Data Received From Night Vision Control Module

Brand: Generic

Type: U — Network/User

Views: UK: 14 EN: 33 RU: 16

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty Night Vision Control Module (software or hardware error)
Intermittent or failed CAN/LIN bus communication
Damaged wiring or connector to the night vision module
Poor or missing ground or supply voltage to the module
Electrical noise or bus contention from another module
Corrupted module programming or firmware mismatch

Symptoms

Instrument cluster or infotainment displays error message about night vision
Night vision function partially or completely disabled
Intermittent or persistent warning lamp related to driver assistance
Stored communication or invalid-data diagnostic trouble codes
Other networked systems showing faults or degraded functionality

What to check

Retrieve freeze frame and related U-codes with a capable scan tool
Visually inspect the night vision module connector for corrosion, bent pins, or water intrusion
Check battery voltage and charging system; ensure stable supply (12V nominal)
Scan the CAN bus for errors (bus off, error counters) and for presence of night vision messages
Inspect wiring harness for abrasion, chafing, or repair sections near hinges and common failure points
Measure module supply and ground circuits for proper voltage and low resistance

Signal parameters

CAN bus physical levels: recessive ~2.5 V on CAN_H and CAN_L, dominant ~3.5 V (CAN_H) and ~1.5 V (CAN_L) — verify with scope
Typical CAN bitrates used by safety systems: 250 kb/s or 500 kb/s (verify vehicle specification)
Night vision module message frequency: regularly timed frames (e.g., 10–100 ms) and event-driven frames — check for missing or malformed IDs
Message payload checks: expected byte length, plausibility ranges (temperature, object coordinates), checksum or CRC presence if used
Error counters: CAN error frame counts and nodes reporting bus off

Diagnostic algorithm

Connect a full-function scan tool and read all stored and pending DTCs; record freeze frame and active network errors.
Note whether U05BE is accompanied by other communication codes (U0100, U0140, etc.). If multiple modules report issues, suspect bus-level fault.
Visually inspect the night vision module connector and harness for damage, corrosion, moisture, or signs of repair.
With key on engine off, measure module supply voltage at the harness pin and check ground resistance to chassis (
Use an oscilloscope or CAN bus analyzer to monitor CAN_H and CAN_L at the night vision module connector. Look for correct recessive/dominant levels, expected bitrate, excessive noise, or repeated malformed frames.
Wiggle-test the harness while monitoring bus traffic to try to reproduce communication errors; inspect any intermittent behavior.
If bus looks healthy at module connector, trace and inspect wiring back to the gateway/bus master and body control module for damage or pin issues.
If wiring and bus are good, check for required software updates or known technical service bulletins for the night vision module; reflash or update firmware per OEM procedures if available.
If programming is required after replacement, follow OEM security and calibration procedures; verify no other modules show new errors after replacement.
Clear codes and perform a road test or functional test to confirm the fault does not return before final repair.

Likely causes

Open, short, or high resistance in CAN high/low wires near the night vision module
Loose, corroded, or pushed-out connector pins at the night vision module
Low battery voltage or unstable supply during module operation
Faulty night vision module hardware (internal failure)
Bus message ID conflicts or repeaters/adapters causing malformed frames

Fault status

⚠️ Status

Invalid or malformed data received from the Night Vision Control Module reported by the vehicle communications network. The data failed plausibility or integrity checks or the module transmitted unexpected frame content.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-3.0 hours