Toyota Sienna Service Manual: Problem symptoms table

Toyota Sienna Service Manual / Mirror / Power mirror control system (w/ Memory) / Problem symptoms table

HINT:

Use the table below to help determine the cause of the problem symptoms. 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Power Mirror Control System

Symptom	Suspected area
Power mirror cannot be adjusted manually	ECU power source circuit Mirror switch circuit Mirror motor circuit Replace outer mirror control switch Replace outer mirror control ECU
Either driver side or passenger side power mirror cannot be adjusted manually.	ECU power source circuit Mirror switch circuit Mirror motor circuit Replace outer mirror control switch Replace outer rear view mirror Replace outer mirror control ECU
Power mirrors do not move to memorized positions.	ECU power source circuit Mirror switch circuit Mirror motor circuit Replace outer mirror control switch Replace outer rear view mirror Replace outer mirror control ECU
Foot lamp does not light up.	Lighting System HINT: Front interior light, illumination and center console spots is abnormal light up. Foot light circuit Replace outer mirror control ECU Replace outer rear view mirror
Memory function does not operate.	Position sensor circuit Replace power seat control ECU & power seat switch Replace outer mirror control ECU Replace outer rear view mirror
Automatic glare-resistant clectrochromic mirror system does not operate	Inner rear view mirror Outer rear view mirror Wire harness
Mirror heater system does not operate.	Check window defogger system Replace outer rear view mirror Wire harness

How to proceed with troubleshooting

HINT: Use these procedures to troubleshoot the power door lock control system. The intelligent tester should be used in steps 4 and 5. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER ...

Terminals of ECU

1. CHECK OUTER MIRROR CONTROL ECU LH Disconnect the O9 and O10 connectors. Measure the voltage and resistance according to the value(s) in the table below. Voltage Resistance If t ...

Other materials:

MIL Circuit
DESCRIPTION The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions detected by the ECM. When the ignition switch is turned to the ON position, power is supplied to the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL. The MIL operation ...

Removal
1. PRECAUTION CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing. 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working. 3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 4. REMOVE STEE ...

Problem symptoms table
HINT: Before inspecting the suspected areas listed in the table below, check the fuse and relay. Before inspecting the suspected areas listed in the table below, check the DTCs. Methods used to verify the cause of the problem are listed in order of probability in the ...