Measurement At The Receiver Terminals

Fig 1: Identifying Receiver Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

TERMINAL VOLTAGE SPECIFICATION

TERMINAL	SIGNAL	REQUIREMENT	TERMINAL VOLTAGE
1	Receiver power supply	Always	Battery positive voltage
2	Ignition switch (ACC) signal	Ignition switch: "ACC" or "ON"	Battery positive voltage
		Ignition switch: "OFF"	0V
4	Ground	Always	0V
5	Data link switching input	Connect scan tool MB991958 (MUT-III sub assembly)	0V
		Disconnect scan tool MB991958 (MUT-III sub assembly).	Battery positive voltage
6	Multiplex communication	Always	0 - 5V (pulse signal)