Power Mirror Surface Position Is Not Memorized

MIRROR (EXT): POWER MIRROR CONTROL SYSTEM: Power Mirror Surface Position is not Memorized

Power Mirror Surface Position is not Memorized

SYSTEM DESCRIPTION

The outer rear view mirror assembly has a mirror position sensor. The position control ECU and switch sends instructions to the outer mirror control ECU. Then the outer mirror control ECU receives mirror information from the mirror position sensors, and memorizes the mirror positions.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Use the Techstream to check if the CAN communication system is functioning normally. Diagnosis System

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. CHECK SEAT MEMORY SWITCH FUNCTION (SEAT POSITION MEMORY FUNCTION)
(a) Check that the driver side seat can be moved using the seat memory switch.
OK:
Driver side seat can be moved using seat memory switch.
NG -- GO TO POWER SEAT CONTROL SYSTEM
OK -- Continue to next step.
3. CHECK SEAT MEMORY SWITCH FUNCTION (REGISTRATION OF SEAT MEMORY SWITCH)
(a) Check that the memory operation is properly completed.
NOTICE:
- The seat position will not be recorded if the seat memory SET switch and 2 or more of the seat memory switches (for example, seat memory switch 1 and seat memory switch 2) are pressed simultaneously.
- If the operation fails, the mirror facing direction will not be memorized until the seat memory SET switch is turned off.
- The mirror facing direction will not be memorized when the mirror is operated manually.

OK:
Driver side seat position can be memorized using seat memory switch (for Driver Side).
NG -- READ VALUE USING TECHSTREAM (MIRROR POSITION MEMORY)
OK -- SYSTEM IS OK
4. READ VALUE USING TECHSTREAM (MIRROR POSITION MEMORY)
(a) Check the Data List for proper functioning of the mirror position memory Scan Tool Testing and Procedures.

Mirror





OK:
On the Techstream screen, each item changes between ON and OFF according to above chart.
NG -- REPLACE OUTER MIRROR CONTROL ECU
OK -- REPLACE POSITION CONTROL ECU AND SWITCH