Inspection Procedure

1. Connect the positive lead from the voltmeter to terminal VSRL (M3-6) and the negative lead to terminal E1 (M3-14).
2. Check that the voltage gradually changes according to the table below while the mirror moves from the uppermost position to lowermost position.

1. Standard: 

NG: REPLACE OUTER REAR VIEW MIRROR ASSY LH 

Fig 1: Identifying Mirror Position Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go To Next Step 

1. Connect the positive lead from the voltmeter to terminal HSRL (M3-13) and the negative lead to terminal E1 (M3-14).
2. Check that the voltage gradually changes according to the table below while the mirror moves from the left-most position to right-most position.
   1. Standard: 
   MIRROR LEFTMOST & RIGHTMOST POSITION
   
   

   Mirror position	Left-most	->	Right-most
   Voltage	2.8 - 5.0	Changes gradually	0 - 1.0

NG: REPLACE OUTER REAR VIEW MIRROR ASSY LH 

Fig 2: Identifying Mirror Position Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go To Next Step 

1. Disconnect the M3 outer rear view mirror and M2 outer mirror control ECU connectors.
2. Check the continuity between connectors.
   1. Standard: 
   TERMINAL SPECIFICATION
   
   

   Symbols (Terminal No.) (Mirror - Mirror ECU)	Specified condition
   VSRL <=> VSRL (M3-6 <=> M2-8)	Continuity
   HSRL <=> HSRL (M3-13 <=> M2-9)	Continuity
   E1 <=> E1 (M3-14 <=> M2-19)	Continuity

   Fig 3: Identifying M3 Outer Rear View Mirror & M2 Outer Mirror Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 

OK: REPLACE OUTER MIRROR CONTROL ECU ASSY 

1. Check the mirror position sensors operation.
   1. Connect the positive lead from the voltmeter to terminal VSSR (M4-6) and the negative lead to terminal E1 (M4-14).
   2. Check that the voltage gradually changes according to the table below while the mirror moves between the uppermost position and lowermost position.
      1. Standard: 
      MIRROR LOWERMOST & UPPER MOST POSITION
      
      

      Mirror position	Lowermost	->	Uppermost
      Voltage	2.8 - 5.0	Changes gradually	0 - 1.0

   NG: REPLACE OUTER REAR VIEW MIRROR ASSY RH 

   Fig 4: Identifying Mirror Position Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: Go To Next Step 

2. CHECK OUTER REAR VIEW MIRROR ASSY RH (FROM UPPERMOST POSITION TO LOWERMOST POSITION MIRROR SENSORS VOLTAGE) 
   1. Check the mirror potion sensors operation.
      1. Connect the positive lead from the voltmeter to terminal HSSR (M4-13) and the negative lead to terminal E1 (M4-14).
      2. Check that the voltage gradually changes according to the table below while the mirror moves between the left-most position and right-most position.
         1. Standard: 
         MIRROR LEFTMOST & RIGHTMOST POSITION
         
         

         Mirror position	Left-most	->	Right-most
         Voltage	0 - 1.0	Changes gradually	2.8 - 5.0

      NG: REPLACE OUTER REAR VIEW MIRROR ASSY RH 

      Fig 5: Identifying Mirror Position Sensor Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: Go To Next Step 

3. CHECK WIRE HARNESS (OUTER MIRROR CONTROL ECU - OUTER REAR VIEW MIRROR RH) 
   1. Disconnect the M4 outer rear view mirror and M2 outer mirror control ECU connectors.
   2. Check the continuity between connectors.
      1. Standard: 
      TERMINAL SPECIFICATION
      
      

      Symbols (Terminal No.) (Mirror - Mirror ECU)	Specified condition
      VSSR <=> VSSR (M4-6 <=> M2-20)	Continuity
      HSSR <=> HSSR (M4-13 <=> M2-21)	Continuity
      E1 <=> E1 (M4-14 <=> M2-19)	Continuity

   NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 

   Fig 6: Identifying M4 Outer Rear View Mirror & M2 Outer Mirror Control ECU Connectors Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE OUTER MIRROR CONTROL ECU ASSY