Reverse Shift-linked Function of Power Mirrors does not Operate [08/2015 - ]: Procedure

1. Check if a CAN communication DTC is output (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2019] , or refer to DIAGNOSIS SYSTEM [08/2019 - 08/2020] , or refer to DIAGNOSIS SYSTEM [08/2020 - 08/2021] , or refer to DIAGNOSIS SYSTEM [08/2021 - ] ).
   RESULT
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] )

Result: 

A 

See step  2

1. Check the electrical remote control mirror function (Refer to OPERATION CHECK [08/2015 - ] ).

   OK

   Electrical remote control mirror function is normal.

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - ] )

Result: 

OK 

See step  3

1. Check if the shift position indicator light in the combination meter assembly operates normally.

   OK

   Shift position indicator light indicates actual shift position correctly.

Result: 

NG 

GO TO METER / GAUGE SYSTEM 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] , or refer to PROBLEM SYMPTOMS TABLE [08/2019 - ] )

Result: 

OK 

See step  4

1. Using the Techstream, read the Data List (Refer to DATA LIST / ACTIVE TEST [08/2015 - ] ).
   MIRROR L / MIRROR R
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Mirror Vertical Sensor Vol	Vertical mirror position/MIN: 0, MAX: 4.98 V	Within range from 0 to 4.98 V	-
   Mirror Horizontal Sensor Vol	Horizontal mirror position/MIN: 0, MAX: 4.98 V	Within range from 0 to 4.98 V	-

   ON

   Output voltage is as shown in table above.

   RESULT
   
   

   Result	Proceed to
   Driver side mirror does not operate normally	A
   Driver side mirror operates normally	B
   Passenger side mirror does not operate normally	C
   Passenger side mirror operates normally	D

Result: 

B 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

Result: 

C 

See step  6

Result: 

D 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH 

(Refer to REMOVAL [08/2015 - ] )

Result: 

A 

See step  5

1. Remove the outer mirror control ECU assembly LH with its connectors still connected (Refer to REMOVAL [08/2015 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   z3-5 (VDD) - z3-14 (GND)	Engine switch on (IG)	4.7 to 5.3 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z3-14 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Outer Mirror Control ECU Assembly LH)

Result: 

OK 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - 08/2019] , or refer to REMOVAL [08/2019 - ] )

Result: 

NG 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

1. Remove the outer mirror control ECU assembly RH with its connectors still connected (Refer to REMOVAL [08/2015 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   z2-5 (VDD) - z2-14 (GND)	Engine switch on (IG)	4.7 to 5.3 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z2-14 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Outer Mirror Control ECU Assembly RH)

Result: 

OK 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH 

(Refer to REMOVAL [08/2015 - 08/2019] , or refer to REMOVAL [08/2019 - ] )

Result: 

NG 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH 

(Refer to REMOVAL [08/2015 - ] )