Reverse Shift-linked Function of Power Mirrors does not Operate [12/2019 - 10/2022]: Procedure

1. Check the electrical remote control mirror function operates normally.

   Refer to OPERATION CHECK [12/2019 - 10/2022]

   OK

   Power electrical remote control mirror function operates normally.

   Result

   Result	Proceed to
   Electrical remote control mirror function is normal	A
   Driver door electrical remote control mirror function is not normal	B
   Front passenger door electrical remote control mirror function is not normal	C

Result: 

B 

GO TO OTHER DIAGNOSTIC PROCEDURE (Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch) 

Refer to Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch [12/2019 - 11/2023] 

Result: 

C 

GO TO OTHER DIAGNOSTIC PROCEDURE (Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch) 

Refer to Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch [12/2019 - 11/2023] 

Result: 

A 

See step  2

1. Turn the ignition switch to ON.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Turn to Fully Left Position

2. Using the outer mirror switch assembly, turn the mirror surface to the fully left position.
3. Press the M1 switch while the SET switch is being pressed.
4. Check that the buzzer sounds for 0.5 seconds and the mirror surface position is memorized.
5. Using the outer mirror switch assembly, turn the mirror surface to the fully right position.
6. Press the M1 switch.
7. Check that the buzzer sounds for 0.1 seconds and the outer mirror automatically moves to the memorized fully left position.

   Result

   Result	Proceed to
   Memory and reactivation functions are normal	A
   Memory function is not normal	B
   Reactivation function is not normal	C

Result: 

B 

GO TO OTHER DIAGNOSTIC PROCEDURE (Power Mirror Surface Position is not Memorized) 

Refer to Power Mirror Surface Position is not Memorized [12/2019 - 11/2023] 

Result: 

C 

GO TO OTHER DIAGNOSTIC PROCEDURE (Power Mirrors do not Return to Memorized Position) 

Refer to Power Mirror Surface Position is not Memorized [12/2019 - 11/2023] 

Result: 

A 

See step  3

1. Check if hybrid control system DTCs are output.*
   1. *: for HV Model

   Powertrain > Hybrid Control > Trouble Codes 

2. Check if SFI system DTCs are output.*
   1. *: for Gasoline Model

   Powertrain > Engine > Trouble Codes 

   OK

   SFI system DTCs are not output.

   Result

   Result	Proceed to
   OK	A
   NG (for HV Model)	B
   NG (for Gasoline Model)	C

Result: 

B 

GO TO HYBRID CONTROL SYSTEM 

for 2WD: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023]

for AWD: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023]

Result: 

C 

GO TO SFI SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022]

Result: 

A 

See step  4

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

   OK

   Shift position indicator light indicates the actual shift position correctly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO METER / GAUGE SYSTEM 

Refer to REMOVAL [12/2019 - ]

Result: 

OK 

See step  5

1. Turn the ignition switch to ON.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Turns Downward

2. Turn the mirror select switch R or L switch on.
3. Check that the mirror surface turns downward when the shift lever is moved to R.

   Result

   Result	Proceed to
   Reverse shift-linked functions on both mirrors are not normal	A
   Reverse shift-linked function on driver door is not normal	B
   Reverse shift-linked function on front passenger door is not normal	C

Result: 

A 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2019 - 10/2022]

Result: 

B 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR) 

Refer to REMOVAL [12/2019 - ]

Result: 

C 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR) 

Refer to REMOVAL [12/2019 - ]