Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

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CAUTION / NOTICE / HINT
HINT:
*: Use the GTS.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
TEST MODE PROCEDURE
SENSOR CHECK USING DEALER MODE (SIGNAL CHECK)
NOTICE:
After replacing or removing and installing a speed sensor, perform Dealer
Mode (Signal Check) inspection to confirm
UTILITY
DESCRIPTION
(a) Refer to the table below and then perform the necessary operation
according to the part to be replaced in order to perform calibration.
Parts to be Replaced / O
SEE MORE:
DESCRIPTION
This DTC is stored when an internal circuit malfunction is detected
by the DCM (telematics transceiver) self check.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B15A804
DCM System Internal Failure
DESCRIPTION If none of the switch indicators on the air conditioning control assembly illuminate, the following factors may be the cause.
Symptom Factor
A/C switch indicator does not illuminate
Air conditioning amplifier assembly malfunction
Air conditioning control