| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM1000000028D7O |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - 08/2023] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C11791C; Multi-axis Acceleration Sensor Module "A" Supply Voltage (2WD) Circuit Voltage Out of Range; 2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 08/2023] | ||
|
DTC |
C11791C |
Multi-axis Acceleration Sensor Module "A" Supply Voltage (2WD) Circuit Voltage Out of Range |
DESCRIPTION
The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.
This DTC is stored when the skid control ECU (brake actuator assembly) receives a sensor supply voltage malfunction signal from the yaw rate and acceleration sensor (airbag sensor assembly).
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C11791C |
Multi-axis Acceleration Sensor Module "A" Supply Voltage (2WD) Circuit Voltage Out of Range |
Vehicle speed is 6 km/h (4 mph) or more and yaw rate and acceleration sensor power supply malfunction signal is received for 1 second or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
When removing/installing a supplemental restraint systems related component, disconnect the cable from the negative (-) battery terminal before performing the procedure.
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![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
|
(a) Turn the ignition switch off. |
|
(b) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Click here
(c) Make sure that there is no looseness at the locking part and the connecting part of the connector.
OK:
The connector is securely connected.
(d) Disconnect the I47 yaw rate and acceleration sensor (airbag sensor assembly) connector.
(e) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(f) Connect the cable to the negative (-) battery terminal.
(g) Turn the ignition switch to ON.
(h) Operate all the components of the electrical system (defogger, wipers, headlights, heater blower, etc.).
(i) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I47-36 (IGR) - Body ground |
Ignition switch ON |
8 to 16 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
|
2. |
CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) |
|
(a) Turn the ignition switch off. |
|
(b) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Click here
(c) Make sure that there is no looseness at the locking part and the connecting part of the connector.
OK:
The connector is securely connected.
(d) Disconnect the I47 yaw rate and acceleration sensor (airbag sensor assembly) connector.
(e) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(f) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I47-33 (E1) - Body ground |
1 minute or more after disconnecting the cable from the negative (-) battery terminal |
Below 1 Ω |
|
I47-32 (E2) - Body ground |
1 minute or more after disconnecting the cable from the negative (-) battery terminal |
Below 1 Ω |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) |
|
|