| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001H3NK |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - ] |
| Title: POWER OUTLETS (INT): WIRELESS CHARGING SYSTEM (for HV Model): Status Signal Circuit; 2020 - 2025 MY Corolla Corolla HV [01/2019 - ] | ||
|
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 Service Bulletin.
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 |
|---|---|---|
|
I73-7 (DIS) - Body ground |
For 5 seconds after turning power switch from off to on (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 power 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 power 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.
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![2020 - 2025 MY Corolla Corolla HV [01/2019 - ]; POWER OUTLETS (INT): WIRELESS CHARGING SYSTEM (for HV Model): SYSTEM DESCRIPTION](/t3Portal/stylegraphics/info.gif)
| OK |
|
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 O61 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the I73 mobile wireless charger cradle assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O61-11 (WCSW) - I73-7 (DIS) |
Always |
Below 1 Ω |
|
O61-11 (WCSW) or I73-7 (DIS) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|