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:

Motor Malfunction (C1427)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area C1427 Motor Malfunction Actuator pump motor does not operate properly. Brake actuator assembly (Ground circuit) Brak ...

Problem Symptoms Table
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 sy ...

Output Speed Sensor Circuit Short to Battery (P072012,P072014,P072031)
DESCRIPTION This sensor detects the rotation speed of the transmission output shaft and sends signals to the ECM. By comparing the input turbine speed signal (NT) with the output shaft speed sensor signal (SP2), the ECM detects the shift timing of the gears and appropriately controls the engi ...

© 2011-2021 Copyright www.ttguide.net