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 exteriorShort to GND in Immobiliser System Power Source Circuit (B278A)
DESCRIPTION
This DTC is stored when the engine switch power source supply line is open or
shorted.
DTC No.
DTC Detection Condition
Trouble Area
B278A
Engine switch power source supply line is ope ...
Touch Sensor Circuit
DESCRIPTION
When the power back door ECU receives a jam signal from the touch sensor while
the power back door is operating, the ECU reverses the back door operation and opens
the door.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE US ...
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR SEAT HEADREST ASSEMBLY
2. REMOVE REAR SEAT CENTER HEADREST ASSEMBLY
3. REMOVE REAR SEAT INNER TRACK BRACKET COVER
4. REMOVE REAR SEAT OUTER TRACK BRACKET COVER
5. DISCONNECT REAR SEAT RECLINING CONTROL CABLE S ...