Toyota Sienna Quiz
Mirror

How to proceed with troubleshooting

In this manual: Mirror
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
2steps
~12min
1/5difficulty
Done 0 of 2

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 PROBLEM ANALYSIS CHECK

HINT:

  • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
  • Gather as much information as possible for reference.

    Past problems that seem unrelated may also help in some cases.

  • The following 5 items are important points in the problem analysis:
What Vehicle model, system name
When Date, time, occurrence frequency
Where Road conditions
Under what conditions? Running conditions, driving conditions, weather conditions
How did it happen? Problem symptoms

3 INSPECT BATTERY VOLTAGE

Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.

4 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally

Result

Result

5 PROBLEM SYMPTOMS TABLE

Result

Result

6 OVERALL ANALYSIS AND TROUBLESHOOTING

  1. Terminals of ECU
  2. DATA LIST/ACTIVE TEST

7 REPAIR OR REPLACE

8 CONFIRMATION TEST

END

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A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.