Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

READ NEXT:
CAUTION / NOTICE / HINT
HINT:
*: Use the GTS.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
TEST MODE PROCEDURE
NOTICE:
After replacing or removing and installing a speed sensor, perform Dealer
Mode (Signal Check) inspection to confirm that the speed sensors are operating
correc
UTILITY
DESCRIPTION
(a) If any of the parts listed in the following table are replaced
or adjusted, it is necessary to perform the specified operation.
NOTICE:
Learning cannot be performed again
SEE MORE:
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 PRECAUTION
-
- -
2 CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
- -
- -
3 ENGINE WIRE
82121
- -
MONITOR DESCRIPTION The ECM uses air fuel ratio sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor (sensor 1), sends pre-catalyst information to the ECM. The second sensor, the air fuel ratio sensor