POWER MIRROR CONTROL SYSTEM TERMINALS OF ECU

for LHD:

1. Disconnect the I17 ECU connector.

2. Measure the voltage and resistance of the wire harness side connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   I17-9 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   I17-3 (B) - I17-9 (GND)	R - W-B	Battery (ECU power source)	Always	11 to 14 V
   I17-4 (ACC) - I17-9 (GND)	GR - W-B	ACC power supply	Engine switch off	Below 1 V
   			Engine switch on (ACC)	11 to 14 V

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the I17 ECU connector.

4. Measure the voltage of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   I17-1 (RL) - I17-9 (GND)	LG - W-B	Mirror retract motor output (retracting)	Mirror retract switch in fold position (Outer rear view mirror LH retracting)	10.3 to 14 V
   I17-2 (FL) - I17-9 (GND)	SB - W-B	Mirror retract motor output (returning)	Mirror retract switch in return position (Outer rear view mirror LH returning)	10.3 to 14 V
   I17-5 (RR) - I17-9 (GND)	BR - W-B	Mirror retract motor output (retracting)	Mirror retract switch in fold position (Outer rear view mirror RH retracting)	10.3 to 14 V
   I17-6 (FR) - I17-9 (GND)	R - W-B	Mirror retract motor output (returning)	Mirror retract switch in return position (Outer rear view mirror RH returning)	10.3 to 14 V
   I18-18 (M+L) - I17-9 (GND)	Y - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch up or left	Below 1 V
   			Mirror master switch L, Mirror control switch down or right	10 to 14 V
   I18-19 (MHL) - I17-9 (GND)	G - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch right	Below 1 V
   			Mirror master switch L, Mirror control switch left	10 to 14 V
   I18-20 (MVL) - I17-9 (GND)	L - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch down	Below 1 V
   			Mirror master switch L, Mirror control switch up	10 to 14 V
   I18-38 (M+R) - I17-9 (GND)	Y - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch up or left	Below 1 V
   			Mirror master switch R, Mirror control switch down or right	10 to 14 V
   I18-39 (MHR) - I17-9 (GND)	G - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch right	Below 1 V
   			Mirror master switch R, Mirror control switch left	10 to 14 V
   I18-40 (MVR) - I17-9 (GND)	R - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch down	Below 1 V
   			Mirror master switch R, Mirror control switch up	10 to 14 V
   I18-4 (VSR) - I18-3 (LE1)	GR - BR	Vertical direction position signal	Mirror master switch L Mirror control switch up or down	Voltage fluctuates between 0 and 5 V
   I18-5 (HSRL) - I18-3 (LE1)	L - BR	Horizontal direction position signal	Mirror master switch L Mirror control switch right or left	Voltage fluctuates between 0 and 5 V
   I18-2 (LVC) - I18-3 (LE1)	B - BR	Power source for mirror position sensor	Engine switch off during sleep mode	Below 1 V
   			Engine switch on (IG)	4.7 to 5.5 V
   I18-24 (VSRR) - I18-23 (RE1)	GR - BR	Vertical direction position signal	Mirror master switch R Mirror control switch up or down	Voltage fluctuates between 0 and 5 V
   I18-25 (HSRR) - I18-23 (RE1)	W - BR	Horizontal direction position signal	Mirror master switch R Mirror control switch right or left	Voltage fluctuates between 0 and 5 V
   I18-22 (RVC) - I18-23 (RE1)	B - BR	Power source for mirror position sensor	Engine switch off during sleep mode	Below 1 V
   			Engine switch on (IG)	4.7 to 5.5 V

   If the result is not as specified, the ECU may have a malfunction.

for RHD:

1. Disconnect the I31 ECU connector.

2. Measure the voltage and resistance of the wire harness side connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   I31-9 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   I31-3 (B) - I31-9 (GND)	R - W-B	Battery (ECU power source)	Always	11 to 14 V
   I31-4 (ACC) - I31-9 (GND)	GR - W-B	ACC power supply	Engine switch off	Below 1 V
   			Engine switch on (ACC)	11 to 14 V

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the I31 ECU connector.

4. Measure the voltage of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   I31-1 (RL) - I31-9 (GND)	BR - W-B	Mirror retract motor output (retracting)	Mirror retract switch in fold position (Outer rear view mirror LH retracting)	10.3 to 14 V
   I31-2 (FL) - I31-9 (GND)	R - W-B	Mirror retract motor output (returning)	Mirror retract switch in return position (Outer rear view mirror LH returning)	10.3 to 14 V
   I31-5 (RR) - I31-9 (GND)	LG - W-B	Mirror retract motor output (retracting)	Mirror retract switch in fold position (Outer rear view mirror RH retracting)	10.3 to 14 V
   I31-6 (FR) - I31-9 (GND)	R - W-B	Mirror retract motor output (returning)	Mirror retract switch in return position (Outer rear view mirror RH returning)	10.3 to 14 V
   I32-18 (M+L) - I31-9 (GND)	Y - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch up or left	Below 1 V
   			Mirror master switch L, Mirror control switch down or right	10 to 14 V
   I32-19 (MHL) - I31-9 (GND)	G - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch right	Below 1 V
   			Mirror master switch L, Mirror control switch left	10 to 14 V
   I32-20 (MVL) - I31-9 (GND)	R - W-B	Mirror motor output	Mirror master switch L, Mirror control switch off	Below 1 V
   			Mirror master switch L, Mirror control switch down	Below 1 V
   			Mirror master switch L, Mirror control switch up	10 to 14 V
   I32-38 (M+R) - I31-9 (GND)	Y - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch up or left	Below 1 V
   			Mirror master switch R, Mirror control switch down or right	10 to 14 V
   I32-39 (MHR) - I31-9 (GND)	G - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch right	Below 1 V
   			Mirror master switch R, Mirror control switch left	10 to 14 V
   I32-40 (MVR) - I31-9 (GND)	L - W-B	Mirror motor output	Mirror master switch R, Mirror control switch off	Below 1 V
   			Mirror master switch R, Mirror control switch down	Below 1 V
   			Mirror master switch R, Mirror control switch up	10 to 14 V
   I32-4 (VSR) - I32-3 (LE1)	GR - BR	Vertical direction position signal	Mirror master switch L Mirror control switch up or down	Voltage fluctuates between 0 and 5 V
   I32-5 (HSRL) - I32-3 (LE1)	W - BR	Horizontal direction position signal	Mirror master switch L Mirror control switch right or left	Voltage fluctuates between 0 and 5 V
   I32-2 (LVC) - I32-3 (LE1)	B - BR	Power source for mirror position sensor	Engine switch off during sleep mode	Below 1 V
   			Engine switch on (IG)	4.7 to 5.5 V
   I32-24 (VSRR) - I32-23 (RE1)	GR - BR	Vertical direction position signal	Mirror master switch R Mirror control switch up or down	Voltage fluctuates between 0 and 5 V
   I32-25 (HSRR) - I32-23 (RE1)	L - BR	Horizontal direction position signal	Mirror master switch R Mirror control switch right or left	Voltage fluctuates between 0 and 5 V
   I32-22 (RVC) - I32-23 (RE1)	B - BR	Power source for mirror position sensor	Engine switch off during sleep mode	Below 1 V
   			Engine switch on (IG)	4.7 to 5.5 V

   If the result is not as specified, the ECU may have a malfunction.

Disconnect the 2B, 2A and 2D ECU connectors.

Measure the voltage and resistance of the wire harness side connectors.

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the 2B, 2A and 2D ECU connectors.

Measure the voltage of the connectors.

If the result is not as specified, the ECU may have a malfunction.