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:
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may not be completely set.
The malfunction indicator lamp comes on indicating a temporary malfunction and your vehicle may not pass the i/m test.
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.
General maintenanceMaintenance requirements
To ensure safe and economical driving, day-to-day care and regular
maintenance are essential. It is the owner’s responsibility to
perform regular checks. Toyota recommends the following maintenance:
General maintenance
General maintenance should be performed on a daily basis. This can
be done ...
Brk relay
On-vehicle inspection
Inspect brk relay
Remove the brk relay from the engine room no. 1
Relay block.
Measure the resistance of the relay.
Standard resistance
If the result is not as specified, replace the relay. ...
Removal
Notice:
Do not heat the vehicle body, emblem and name plate
excessively.
Hint:
When removing the emblem and name plate, heat the vehicle
body, emblem and name plate using a heat light.
Standard heating temperature
Remove no. 1 Back door emblem assembly
Put protective tape aroun ...