U050E

Code

Generic U — Network/User

Invalid Data Received From Wireless Accessory Charging Module B

Brand: Generic

Type: U — Network/User

Views: UK: 25 EN: 31 RU: 27

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty or intermittent wiring/connectors between Module B and the vehicle data bus
Loss of power or ground to Wireless Accessory Charging Module B
Faulty Wireless Accessory Charging Module B (hardware or firmware)
CAN/LIN bus faults (open circuit, short to power/ground, missing termination)
Network message collisions or ID conflicts from another module
Corrupted module programming or mismatched software/calibration

Symptoms

Wireless accessory charging may not start or may stop intermittently
Charge status indicator or infotainment message about charger fault
Stored network communication faults or multiple related U-codes
Other systems that rely on charger data may show warnings or degraded operation
Intermittent loss of accessory charging functionality

What to check

Read and record all stored U-codes and freeze-frame data with a factory-level scan tool
Check for additional related codes (other U-codes, B-codes, or module-specific codes)
Verify module B appears on the network (module present, correct ID) with a scanner
Inspect connectors and wiring at Wireless Accessory Charging Module B for damage, corrosion, or water intrusion; reseat connectors
Measure module power and ground circuits at the module connector for correct voltage and continuity
Check vehicle battery voltage and charging system health

Signal parameters

Network type: CAN (common) or LIN (vehicle specific) — confirm which bus the charging module uses
Arbitration ID(s) used by Wireless Accessory Charging Module B (verify expected IDs with OEM data)
Data length (DLC) and expected message periodicity (e.g., message interval in ms)
Checksum/CRC or parity field presence and expected value rules
CAN high/low voltages during idle and dominant states, expected ~2.5V mid-line with proper transceivers (verify OEM spec)
Bus termination resistance (typically ~60 ohms total for CAN) and presence of transceiver activity

Diagnostic algorithm

Confirm the U050E code and note freeze-frame & related codes. Do not assume a replacement without testing.
Check vehicle battery voltage and fuses for the charging module circuit. Repair any low-voltage conditions.
Visually inspect and reseat connectors at Wireless Accessory Charging Module B. Look for bent pins, corrosion, or moisture.
Verify power and ground at the module connector with a multimeter. Repair wiring or grounds if out of spec.
Use a scan tool to confirm the module is present on the network and to view live data from the module (if available). Note any invalid fields or missing parameters.
Check for additional network U-codes or module-specific faults that may point to a different source or root cause.
Monitor the bus with an oscilloscope or CAN/LIN logger while reproducing the fault. Look for malformed frames, unexpected IDs, incorrect voltage levels, or CRC errors.
Inspect bus wiring and termination. Measure total termination resistance and repair shorts/opens or damaged sections.
If wiring and bus integrity are good and intermittent behavior persists, check module firmware/calibration part numbers and compare with OEM records. Reprogram/update module software per OEM procedures if a mismatch or update is available.
If a suspected defective module remains after the above checks, consider swapping with a known-good Wireless Accessory Charging Module B (if available) to confirm module fault.
After any repair or module replacement, clear codes, perform relearn or configuration procedures required by the manufacturer, then road-test to confirm the fault is resolved.
If the problem cannot be resolved, consult OEM technical bulletins or advanced diagnostics (manufacturer data logger, dealer support).

Likely causes

Poor connector contact or damaged wiring at the charging module
Module B powered but producing malformed CAN/LIN frames due to internal fault
Bus termination missing or short causing corrupted messages
Software/firmware mismatch after module replacement or update
Intermittent battery/ignition voltage causing incorrect transmit timing

Fault status

⚠️ Status

Invalid data received from Wireless Accessory Charging Module B — messages from the module are corrupted, out of expected format, or failing integrity checks.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0 - 3.0 hours