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:

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use this procedure to troubleshoot the seat heater system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. ...

Back-up Power Source Circuit
DESCRIPTION The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even when the ignition switch is off. The power is used for diagnostic trouble code memory, etc. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for ...

Low Power Supply Voltage Malfunction (C1241)
DESCRIPTION If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation. This DTC is stored when the +BS terminal voltage deviates from the DTC detection condition due to a malfunc ...

© 2011-2019 Copyright www.ttguide.net