Check At Ecu Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Terminal No.	Terminal code	Check item	Check condition	Normal condition
1	IND4	SOS switch indicator light (Green)	SOS switch: "ON"	5 V
2	IND1	SOS switch indicator light (Red)	SOS switch: "ON"	5 V
3	-	-	-	-
4	SW3+	Information switch input	Information switch: "ON"	5 V
5	MI-	Microphone input from microphone unit to TCU (-)	Always	1 V or less
6	MISH	Microphone input from microphone unit to TCU (shield)	Always	1 V or less
7	MO-	Microphone input from TCU to Audio device (-)	Always	1 V or less
8	-	-	-	-
9	SPO-	Voice output from TCU to ECALL relay box assembly [Digital/analog signal conversion terminal (-)]	When front door speaker (RH) or ECALL speaker is activated	5 V
10	SPO+	Voice output from TCU to ECALL relay box assembly [Digital/analog signal conversion terminal (+)]	When front door speaker (RH) or ECALL speaker is activated	5 V
11	RL02	Switching voice output from ECALL speaker to front door speaker (RH)	When front door speaker (RH) is activated	5 V
12	RL01	Switching voice output from front door speaker (RH) to ECALL speaker	When ECALL speaker is activated	5 V
13	CANL	CAN L	-	-
14 - 15	-	-	-	-
16	JDSP	Terminals for judging the tone color parameter	Always	<Vehicles without audio amplifier> Normally opened
16	JDSP	Terminals for judging the tone color parameter	Always	<Vehicles with audio amplifier> 1 V or less
17	CSIG	Air bag collision input signal	Ignition switch: ON	5 V
18	IG	ECU power supply (Ignition switch: IG1)	Ignition switch: ON	Battery positive voltage
18	IG	ECU power supply (Ignition switch: IG1)	Ignition switch: OFF	1 V or less
19	ACC	ACC input signal	Ignition switch: ACC	Battery positive voltage
19	ACC	ACC input signal	Ignition switch: Other than ACC	1 V or less
20	GND2	Earth (ECU)	Always	1 V or less
21	IND6	Information switch indicator light (Green)	Information switch: "ON"	5 V
22	IND5	Information switch indicator light (Red)	Information switch: "ON"	5 V
23	SW-	SOS switch/information switch (-)	SOS switch or information switch: "ON"	1 V or less
24	SW1+	SOS switch input	SOS switch: "ON"	5 V
25	MI+	Microphone input from microphone unit to TCU (+)	When voice is input from microphone unit	8 V
26	SNSI	Connection detection of microphone unit	Ignition switch: ON	5 V
27	MO+	Microphone output from TCU to audio device (+)	When voice is input from microphone unit	8 V
28	SNSO	Microphone input from TCU to Audio device (Detect)	When voice is input from microphone unit	5 V
29 - 32	-	-	-	-
33	CANH	CAN H	-	-
34	MUTE	Mute operation of audio device	When SOS emergency assist or information assist is activated	Battery positive voltage
35 - 37	-	-	-	-
38	+B	ECU power supply (battery)	Always	Battery positive voltage
39	-	-	-	-
40	GND	Earth (ECU)	Always	1 V or less