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:
Also, depending on your driving habits, the readiness codes may not be completely set.
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.
Maintenance requirements
Do-it-yourself service precautionsPrecaution
Troubleshooting precaution
When there are malfunctions in the contact points of
the terminals or installation problems with any parts,
removal and installation of the suspected problem
parts may return the system to its normal condition
either entirely or temporarily.
In order to ...
Knock sensor 1 circuit
Description
Flat type knock sensors (non-resonant type) have structures that can detect
vibrations over a wide band
of frequencies: between approximately 6 khz and 15 khz.
A knock sensor is fitted onto the engine block to detect engine knocking.
The knock sensor contains a piezoelectri ...
Installation (2005/11-2006/01)
Install no. 1 Roof silencer pad
W/o sliding roof:
Install the 5 silencer pads.
W/ sliding roof:
Install the 2 silencer pads.
Install no. 3 Roof silencer pad
Install no. 1 Roof wire
Only when replacing the roof headlining:
Align the marking, and then ...