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Home >> Lexus >> 2009 >> IS 250 AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Mirrors >> Power Mirror Control System (Diagnostics) >> Power Mirror Control System (W/ Memory) >> Problem Symptoms Table >> Problem Symptoms Table
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Problem Symptoms Table

HINT: 

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

POWER MIRROR CONTROL SYSTEM

Symptom Suspected Area Reference
Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch Multiplex communication system Refer to Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch 
Outer mirror switch assembly -
Main body ECU (cowl side junction block RH) -
Outer mirror control ECU assembly (driver side) -
Outer mirror actuator assembly LH -
Wire harness or connector -
Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch Multiplex communication system Refer to Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch 
Outer mirror switch assembly -
Main body ECU (cowl side junction block RH) -
Outer mirror control ECU assembly (passenger side) -
Outer mirror actuator assembly RH -
Wire harness or connector -
Power Mirror cannot be Adjusted with Power Mirror Switch Multiplex communication system Refer to Power Mirror cannot be Adjusted with Power Mirror Switch 
Outer mirror switch assembly -
Main body ECU (cowl side junction block RH) -
Wire harness or connector -
Mirror Heater does not Operate with Rear Defogger Switch Multiplex communication system Refer to Mirror Heater does not Operate with Rear Defogger Switch 
Window defogger system -
Wiper and washer system -
Heater mirror relay -
Air conditioning amplifier assembly -
Outer rear view mirror assembly LH -
Outer rear view mirror assembly RH -
Wire harness or connector -
Power Retract Mirrors do not Operate with Power Retract Mirror Switch Multiplex communication system Refer to Power Retractable Mirrors do not Operate with Power Retract Mirror Switch 
Outer mirror switch assembly -
Main body ECU (cowl side junction block RH) -
Outer mirror control ECU assembly (driver side) -
Outer mirror control ECU assembly (passenger side) -
Outer mirror actuator assembly LH -
Outer mirror actuator assembly RH -
Wire harness or connector -
AUTO Power Retract Mirrors do not operate Multiplex communication system Refer to AUTO Power Retract Mirrors do not operate 
Outer mirror switch assembly -
Main body ECU (cowl side junction block RH) -
Combination meter assembly -
Outer mirror control ECU assembly (driver side) -
Outer mirror control ECU assembly (passenger side) -
Outer mirror actuator assembly LH -
Outer mirror actuator assembly RH -
Wire harness or connector -
Power Mirror Surface Position is not Memorized Multiplex communication system Refer to Power Mirror Surface Position is not Memorized 
Power seat control system -
Position control ECU and switch (driver side) -
Outer mirror actuator assembly LH -
Outer mirror actuator assembly RH -
Outer mirror control ECU assembly (driver side) -
Outer mirror control ECU assembly (passenger side) -
Wire harness or connector -
Power Mirrors do not Return to Memorized Position Multiplex communication system Refer to Power Mirrors do not Return to Memorized Position 
Power seat control system -
Outer mirror actuator assembly LH -
Outer mirror actuator assembly RH -
Outer mirror control ECU assembly (driver side) -
Outer mirror control ECU assembly (passenger side) -
Wire harness or connector -
Reverse Shift-linked Function of Power Mirrors does not Operate Multiplex communication system Refer to Reverse Shift-linked Function of Power Mirrors does not Operate 
CAN communication system -
Park / Neutral position switch (for AT) -
Back up light switch (for MT) -
Gate way ECU -
ECM -
Main body ECU (cowl side junction block LH) -
Outer mirror control ECU assembly (driver side) -
Outer mirror control ECU assembly RH (passenger side) -
Outer mirror actuator assembly LH -
Outer mirror actuator assembly RH -
Wire harness or connector -
Automatic glare-resistant EC mirror does not operate Inner rear view mirror Refer to INSPECTION
Outer rear view mirror assembly LH Refer to INSPECTION
Outer rear view mirror assembly RH Refer to INSPECTION
Wire harness or connector -