CRU - Control Software

Diagnostic Trouble Code			Light	System	Description
CRU	000639	.12	-	Radio, CAN BUS	Data from the vehicle CAN BUS (500 kBd) are faulty or incomplete. Restart engine to attempt vehicle recovery.
CRU	520772	.12	-	Radio, MP3-CD replay	Problem with decoding of CD data. Restart engine to attempt vehicle recovery.
CRU	521156	.12	-	Radio, XM tuner	Problem in data transfer between XM tuner and radio. Restart engine to attempt vehicle recovery. Fault applies only with Premium Radio for North America.
CRU	521780	.6	-	Radio, USB connection	USB connection circuit fault. Remove appliance connected to USB connection. Restart engine to attempt vehicle recovery.
CRU	524259	.00	-	Radio, CD drive	Temperature inside the CD drive is too high. Stop operating the CD and allow drive time to cool down.
CRU	524259	.31	-	Radio, amplifier	Temperature inside the radio is too high. Switch off the radio and allow time for it cool down. Continue operation at reduced volume.