ECU defect
â–¶ How to fix
If inactive DTC: Spare part program the ECU. If active DTC: Replace the ECU.
What you'll see
No driver-visible symptom recorded.
System reaction
Automatic movement of window is possibly disabled. Key remote control could possibly not be used. SUB-CAN could possibly not be enabled.
Diagnostic depth
Detection
RAM/ROM/NVRAM checksum error, communication with RF-transeiver not possible, ECU internal voltages wrong
Possible cause
Defect on ECU-Hardware or Main/Sub MCU RAM/ROM/NVRAM. Defect radio tranceiver