Module I/O Signal

Unit body 

Courtesy of SUBARU OF AMERICA, INC.

• Power supply and speaker output terminal
  • Model without power amplifier

    Terminal No.	Contents	Measuring condition	Measurement value	Note
    (i85) No. 1	FR+	-	-	-
    (i85) No. 2	FL+	-	-	-
    (i85) No. 3 ↔ Chassis ground	ACC	ACC ON	11 - 15 V	-
    (i85) No. 4 ↔ Chassis ground	+B	Always	11 - 15 V	-
    (i85) No. 5	FR-	-	-	-
    (i85) No. 6	FL-	-	-	-
    (i85) No. 7 <-<↔Chassis ground	GND	Always	0 V	-
    (i85) No. 8	ANT-ON	-	-	-
    (i85) No. 9	NC	-	-	-
    (i85) No. 10	ILL+	-	-	-
    (i131) No. 1	RR+	-	-	-
    (i131) No. 2	RL+	-	-	-
    (i131) No. 3	RR-	-	-	-
    (i131) No. 4	NC	-	-	-
    (i131) No. 5	ILL-	-	-	-
    (i131) No. 6	RL-	-	-	-

  • Model with power amplifier

    Terminal No.	Contents	Measuring condition	Measurement value	Note
    (i35) No. 1	FR+	-	-	-
    (i35) No. 2	FL+	-	-	-
    (i35) No. 3 <-<↔ Chassis ground	ACC	ACC ON	11 - 15 V	-
    (i35) No. 4 <-<↔ Chassis ground	+B	Always	11 - 15 V	-
    (i35) No. 5	FR-	-	-	-
    (i35) No. 6	FL-	-	-	-
    (i35) No. 7 <-<↔ Chassis ground	GND	Always	0 V	-
    (i35) No. 8	ANT-ON	-	-	-
    (i35) No. 9	NC	-	-	-
    (i35) No. 10	ILL+	-	-	-
    (i36) No. 1	NC	-	-	-
    (i36) No. 2	INT+	-	-	-
    (i36) No. 3	NC	-	-	-
    (i36) No. 4	SLD2	-	-	-
    (i36) No. 5	ILL-	-	-	-
    (i36) No. 6	INT-	-	-	-

• Steering switch and AUX input terminal for microphone etc.

  Terminal No.	Contents	Measuring condition	Measurement value	Note
  (i87) No. 1 ↔ Chassis ground	IGN	IGN ON	11 - 15 V	-
  (i87) No. 2	REVERSE	-	-	-
  (i87) No. 3	BRIGHT	-	-	-
  (i87) No. 4	VCC	-	-	-
  (i87) No. 5	MIC+	-	-	-
  (i87) No. 6	DET	-	-	-
  (i87) No. 7	NC- (1)/AMP CAN+ (for AMP communication)(1)	-	-	-
  (i87) No. 8	NC- (1)/AMP CAN- (for AMP communication)(2)	-	-	-
  (i87) No. 9	CAN+	-	-	-
  (i87) No. 10	CAN-	-	-	-
  (i87) No. 11	AC-UART (+)	-	-	-
  (i87) No. 12	AC-UART(-)	-	-	-
  (i87) No. 13	MIC2+	-	-	-
  (i87) No. 14	MIC2-	-	-	-
  (i87) No. 15 ↔ Chassis ground	PKB	At parking ON	1 V or less	-
  (i87) No. 16	NC- (1)/MUTE(2)	-	-	-
  (i87) No. 17 ↔ Chassis ground	SPEED	When the tire is rotating	Pulse signal	-
  (i87) No. 18	SGND	-	-	-
  (i87) No. 19	MIC-	-	-	-
  (i87) No. 20	TEST	-	-	-
  (i87) No. 21	STEERING SW1+	-	-	-
  (i87) No. 22	STEERING SW2+	-	-	-
  (i87) No. 23	STEERING SW GND	-	-	-
  (i87) No. 24	DC MODULE MUTE	-	-	-
  (i87) No. 25	FRONT ON	-	-	-
  (i87) No. 26	R SIG	-	-	-
  (i87) No. 27	R/L SIG	-	-	-
  (i87) No. 28	L SIG	-	-	-
  (1) Model without power amplifier (2) Model with power amplifier

• Rearview camera

  Terminal No.	Contents	Measuring condition	Measurement value	Note
  (i146) No. 1 <↔ Chassis ground	GND	Always	0 V	-
  (i146) No. 2	6 V+	-	-	-
  (i146) No. 3	CA+	-	-	-
  (i146) No. 4	CA-	-	-	-
  (i146) No. 5	NC	-	-	-

Power amplifier 

Courtesy of SUBARU OF AMERICA, INC.