Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

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CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the air conditioning system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
CUSTOMIZE PARAMETERS CUSTOMIZE AIR CONDITIONING SYSTEM
(a) Customizing with the GTS.
NOTICE:
When the customer requests a change in a function, first make sure that the function can be customi
INITIALIZATION SERVO MOTOR INITIALIZATION (a) Press the OFF switch.
(b) According to the GTS display, perform servo motor initialization. Body Electrical > Air Conditioner > Utility
Te
SEE MORE:
CHECK MODE PROCEDURE
DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that cannot be detected in normal mode. Check mode can also detect all of the malfunctions
that can be detected in normal mode. In check mode, DTCs are stored with 1-trip
dete
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) Disconnect the I49 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT: Measure the values on the wire harness side with the connector disconnected.