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.
Vehicle exteriorSpeed Sensor Rotor Faulty (C1237/37,C1275/75-C1278/78)
DESCRIPTION
The skid control ECU measures the speed of each wheel by receiving signals from
the speed sensor.
These signals are used for recognizing that all four wheels are operating properly.
Therefore, all wheel signals must be equal.
DTCs C1275/75 to ...
Light Sensor Circuit Malfunction (B1244)
DESCRIPTION
The automatic light control sensor detects ambient light, converts it into an
electrical signal, and outputs it to the main body ECU (driver side junction block
assembly). The main body ECU (driver side junction block assembly) turns on or off ...
LVDS Signal Malfunction (from Extension Module) (B1532)
DESCRIPTION
The stereo component tuner assembly and the navigation receiver assembly are
connected by the LVDS communication line.
This DTC is stored when an LVDS communication error occurs between the stereo
component tuner assembly and the navigation r ...