No.7 ALC Function Is Inoperative [Entire Audio System]: Notes

7	ALC function is inoperative
Possible DTC	Using the M-MDS	U0155:00, U0010:88
Possible DTC	Without using M-MDS (On-board diagnostic test mode)	16:Er12
Possible cause	Open or short circuit in vehicle speed signal wiring harness (e.g., instrument cluster) CAN signal wiring harness malfunction Audio unit malfunction NOTE: Inspect the ALC function while driving the vehicle with playing the CD, etc.