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Toyota Sienna 2010-2022 Owners Manual: Emission inspection and maintenance (I/M) programs

Toyota Sienna 2010-2022 Owners Manual / Maintenance and care / Maintenance / Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system.

If the malfunction indicator lamp comes on

The OBD system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the I/M test and may need to be repaired. Contact your Toyota dealer to service the vehicle.

Your vehicle may not pass the I/M test in the following situations:

When the malfunction indicator lamp still remains on after several driving trips

The error code in the OBD system will not be cleared unless the vehicle is driven 40 or more times

If your vehicle does not pass the I/M test

Contact your Toyota dealer to prepare the vehicle for re-testing.

Vehicle exterior
Items Check points Doors Do the doors operate smoothly? Engine hood Does the engine hood lock system work properly? ...

Do-it-yourself maintenance
...

Other materials:

Diagnosis system
1. CHECK DLC3  The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and meets the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the igniti ...

Television Display Power Source Circuit
DESCRIPTION This is the power source circuit to operate the television display assembly. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT TELEVISION DISPLAY ASSEMBLY Disconnect the connector from the television display assembly.  Measure the resistance according to the value(s) ...

How to proceed with troubleshooting
HINT: Troubleshoot in accordance with the procedures on the following pages. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) Use the intelligent tester to check for norma ...

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