Toyota Corolla Cross: Status Signal Circuit

Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Interior / Power Outlets (int) / Wireless Charging System / Status Signal Circuit

DESCRIPTION

This circuit sends a charging suspension signal from the certification ECU (smart key ECU assembly) to the mobile wireless charger cradle assembly. Based on this signal, the mobile wireless charger cradle assembly suspends or resumes wireless charging.

HINT:

The wireless charging system uses the same radio wave frequency that is used to perform verification of the electrical key transmitter sub-assembly. Therefore, when the electrical key transmitter sub-assembly verification is being performed, the certification ECU (smart key ECU assembly) sends a charging suspension signal to the wireless charging system to suspend charging.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the certification ECU (smart key ECU assembly), refer to Registration.

for HEV Model: Click here
for Gasoline Model: Click here

PROCEDURE

1.	CHECK MOBILE WIRELESS CHARGER CRADLE ASSEMBLY (DIS TERMINAL)

*a	Component with harness connected (Mobile Wireless Charger Cradle Assembly)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
I213-8 (DIS) - Body ground	For 5 seconds after turning ignition switch from off to ACC*1	4.5 to 6.0 V
	Device being charged	Below 1 V
	Charging suspended due to smart key system status*2	4.5 to 6.0 V

*1: When the ignition switch is turned from off to ON (ACC), the mobile wireless charger cradle assembly monitors the charging suspension signal for 5 seconds. If the charging suspension signal is not 4 V or more for 0.8 seconds or more during monitoring, the mobile wireless charger cradle assembly determines that there is an open in the charging suspension signal line, blinks (pattern 1) the indicator light (amber), and prohibits operation until the ignition switch is turned from off to ON (ACC) again.
*2: For details about conditions when the certification ECU (smart key ECU assembly) sends the charging suspension signal, refer to System Description.
Click here

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

2.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - MOBILE WIRELESS CHARGER CRADLE ASSEMBLY)

(a) Disconnect the O200 certification ECU (smart key ECU assembly) connector.

(b) Disconnect the I213 mobile wireless charger cradle assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
O200-20 (WCSW) - I213-8 (DIS)	Always	Below 1 Ω
O200-20 (WCSW) or I213-8 (DIS) - Body ground	Always	10 kΩ or higher

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

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Toyota Corolla Cross: Status Signal Circuit

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