Connector H, handsfree microphone. Only on cars manufactured up to week 34, 2001 inclusive

Fig 1: Connector H, handsfree Microphone. Only On Cars Manufactured Up To Week 34, 2001 Inclusive

Courtesy of VOLVO CARS OF NORTH AMERICA.

Control module terminal	Breakout box terminal	Signal type	Ignition on	Other
1	-	HF MIC signal	handsfree microphone signal	Alternating current when there is sound from the handsfree microphone
2	-	HF MIC ground	handsfree microphone ground	Ulow