RM38T0EC _54 Brake _112606 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0608077 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model) C11791C Multi-axis Acceleration Sensor Module "A" Supply Voltage (2WD) Circuit Voltage Out of Range

DESCRIPTION

The airbag ECU 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 ECU assembly).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	DTC Output from	Note
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.	· Wire harness or connector · Acceleration sensor (airbag ECU assembly)	Does not come on	Brake/EPB	Output ECU: Skid control ECU (brake actuator assembly)

WIRING DIAGRAM

0.802,0.719 1.417,0.917 0.615,0.198 10 false CAFL 6.052,0.708 6.667,0.906 0.615,0.198 10 false CANL 0.792,1.323 1.406,1.521 0.615,0.198 10 false CAFH 6.052,1.313 6.667,1.51 0.615,0.198 10 false CANH 0.927,1.927 1.219,2.167 0.292,0.24 10 false IGR 0.979,2.542 1.292,2.74 0.313,0.198 10 false E1 0.979,3.146 1.292,3.344 0.313,0.198 10 false E2 1.292,0.531 1.604,0.729 0.313,0.198 10 false 27 1.292,1.135 1.604,1.333 0.313,0.198 10 false 26 1.302,1.823 1.615,2.021 0.313,0.198 10 false 36 1.292,2.438 1.604,2.635 0.313,0.198 10 false 33 1.302,3.042 1.615,3.24 0.313,0.198 10 false 32 5.76,0.531 6.073,0.729 0.313,0.198 10 false 19 5.823,1.135 5.969,1.323 0.146,0.188 10 false 5 2.115,2.073 2.979,2.26 0.865,0.188 10 false A/BAG-IGR 3.927,1.917 5.75,2.271 1.823,0.354 10 false from IGR NO. 1 Relay 0.083,3.875 0.542,4.073 0.458,0.198 10 false I47 0.073,4.021 2.208,4.469 2.135,0.448 10 false Yaw Rate and Acceleration Sensor (Airbag ECU Assembly) 5.552,4.063 7.104,4.448 1.552,0.385 10 false Skid Control ECU (Brake Actuator Assembly) 5.563,3.896 6.021,4.094 0.458,0.198 10 false A151 3.667,3.396 5.531,3.677 1.865,0.281 10 false : CAN Communication Line

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 (-) auxiliary battery terminal before performing the procedure.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION202201,202405,_58,_115188,_0511913,RM1000000020FQM,202405,999999,_58,_115188,_0511913,RM100000002MT79,

PROCEDURE

1.CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

0.219,0.583 0.583,0.865 0.365,0.281 2.802,2.823 2.271,2.333 true 0.177,0.229 0.49,0.385 0.313,0.156 10 false *a 0.302,0.646 0.76,0.844 0.458,0.198 10 false I47 2.771,2.833 3.229,3.031 0.458,0.198 10 false IGR

*a	Front view of wire harness connector (to Yaw Rate and Acceleration Sensor (Airbag ECU Assembly))

Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:: Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.; Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION202201,202405,_58,_115188,_0511913,RM1000000020FQM,202405,999999,_58,_115188,_0511913,RM100000002MT79,

Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:: The connector is securely connected.

Disconnect the I47 yaw rate and acceleration sensor (airbag ECU assembly) connector.

Check both the connector case and the terminals for deformation and corrosion.

OK:: No deformation or corrosion.

Connect the cable to the negative (-) auxiliary battery terminal.

Turn the ignition switch to ON.

Operate all the components of the electrical system (defogger, wipers, headlights, heater blower, etc.).

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

Result:

Proceed to
OK
NG

2.CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

Turn the ignition switch off.

Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:: Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.; Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION202201,202405,_58,_115188,_0511913,RM1000000020FQM,202405,999999,_58,_115188,_0511913,RM100000002MT79,

Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:: The connector is securely connected.

Disconnect the I47 yaw rate and acceleration sensor (airbag ECU assembly) connector.

Check both the connector case and the terminals for deformation and corrosion.

OK:: No deformation or corrosion.

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 (-) auxiliary battery terminal	Below 1 Ω
I47-32 (E2) - Body ground	1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL202307,999999,_58,_115188,_0510630,RM100000002BZXJ,

REPAIR OR REPLACE HARNESS OR CONNECTOR