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 exteriorPower Management Control Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE RH
2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH
3. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
4. REMOVE LOWER INSTRUMENT PANEL SUB-ASS ...
Room Temperature Sensor Circuit (B1411/11)
DESCRIPTION
The room temperature sensor is installed in the instrument panel. It detects
the cabin temperature to control the air conditioning AUTO mode. The resistance
of the room temperature sensor changes in accordance with the cabin temperature.
As ...
Readiness Monitor Drive Pattern
READINESS MONITOR DRIVE PATTERN
1. PURPOSE OF READINESS TESTS
The On-Board Diagnostic (OBD II) system is designed to monitor the performance
of emission related components, and indicate any detected abnormalities
using DTCs (Diagnostic Trouble ...