DTC B1A89:42 [Connectivity Master Unit]: Notes

DTC B1A89:42 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSES

Description	Tuner and amp unit internal malfunction
Detection condition	The connectivity master unit detects an XM module malfunction in the tuner and amp unit with the ignition switched ON (engine off or on).
Fail-safe	Not applicable
Possible cause	Tuner and amp unit malfunction XM module malfunction
System wiring diagram	Not applicable