Toyota Tacoma manuals

Toyota Tacoma Owners Manual: Emission inspection and maintenance (I/M) programs

Toyota Tacoma 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:

● When the battery is disconnected or discharged

Readiness codes that are set during ordinary driving are erased.

Also, depending on your driving habits, the readiness codes may not be completely set.

● When the fuel tank cap is loose

The malfunction indicator lamp comes on as a temporary malfunction and your vehicle may not pass the I/M test.

■ When the malfunction indicator lamp goes off 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.

General maintenance
Listed below are the general maintenance items that should be performed at the intervals specified in the “Scheduled Maintenance Guide” or “Owner’s Manual Supplement”. It is recommended ...

When trouble arises
...

Other materials:

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL UPPER RADIATOR TANK (a) Install a new upper radiator tank. Text in Illustration *1 Upper Radiator Tank *2 Core Plate *a Correc ...

Initialization
INITIALIZATION 1. ZERO POINT CALIBRATION NOTICE: Make sure that the front passenger seat is not occupied before performing the operation. HINT: Perform the zero point calibration and sensitivity check if any of the following conditions apply. The occupant detection ECU is replaced. ...

Data List / Active Test
DATA LIST / ACTIVE TEST HINT: By accessing the Data List displayed by the Techstream, you can check values of switches and sensors without removing any parts. Reading the Data List as the first step of troubleshooting is one method to shorten diagnostic time. 1. DATA LIST FOR OCCUPANT DETECTI ...

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