RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0385049 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch)  C14D71C  Multi-axis Acceleration Sensor Module "A" Supply Voltage 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
C14D71C Multi-axis Acceleration Sensor Module "A" Supply Voltage 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

·

Yaw rate sensor (airbag ECU assembly)



WIRING DIAGRAM

C521115E01
0.802,0.719 1.417,0.917 0.615,0.198 10 false CANL 6.052,0.719 6.667,0.917 0.615,0.198 10 false CANL 0.792,1.333 1.406,1.531 0.615,0.198 10 false CANH 6.052,1.323 6.667,1.521 0.615,0.198 10 false CANH 0.938,1.938 1.229,2.177 0.292,0.24 10 false IG2 0.979,2.552 1.292,2.75 0.313,0.198 10 false E1 0.979,3.167 1.292,3.365 0.313,0.198 10 false E2 1.292,0.552 1.604,0.75 0.313,0.198 10 false 27 1.292,1.156 1.604,1.354 0.313,0.198 10 false 26 1.302,1.844 1.615,2.042 0.313,0.198 10 false 36 1.292,2.448 1.604,2.646 0.313,0.198 10 false 33 1.302,3.052 1.615,3.25 0.313,0.198 10 false 32 5.76,0.542 6.073,0.74 0.313,0.198 10 false 14 5.75,1.146 6.01,1.323 0.26,0.177 10 false 26 2.125,2.094 2.896,2.281 0.771,0.188 10 false A/BAG-IG2 3.927,1.958 5.01,2.156 1.083,0.198 10 false from IG Circuit 0.083,3.875 0.542,4.073 0.458,0.198 10 false N45 0.073,4.021 2.229,4.375 2.156,0.354 10 false Yaw Rate and Acceleration Sensor (Airbag ECU Assembly) 5.51,4.042 7.042,4.51 1.531,0.469 10 false Skid Control ECU (Brake Actuator Assembly) 5.51,3.896 5.969,4.094 0.458,0.198 10 false A28 3.677,3.406 5.542,3.688 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.

·

After replacing or reinstalling the yaw rate and acceleration sensor (airbag ECU assembly), perform acceleration sensor zero point calibration and store system information memorization after performing "Reset Memory".

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>UTILITY

·

When removing/installing a supplemental restraint systems related component, disconnect the cable from the negative (-) battery terminal before performing the procedure.

for Type A: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type A)>PRECAUTION

for Type B: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type B)>PRECAUTION



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)
a.
C374261C56
0.219,0.583 0.583,0.865 0.365,0.281 2.771,2.823 2.24,2.333 true 0.177,0.229 0.49,0.385 0.313,0.156 10 false *a 0.271,0.635 0.729,0.833 0.458,0.198 10 false N45 2.802,2.771 3.26,2.969 0.458,0.198 10 false IG2
*a Front view of wire harness connector
(to Yaw Rate and Acceleration Sensor (Airbag ECU Assembly))


Turn the ignition switch off.


b.

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

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

for Type A: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type A)>PRECAUTION

for Type B: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type B)>PRECAUTION



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 N45 yaw rate and acceleration sensor (airbag ECU 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
N45-36 (IG2) - Body ground Ignition switch ON 8 to 16 V



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

2.CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)
a.
C374261C57
0.219,0.583 0.583,0.865 0.365,0.281 2.344,3.042 1.854,2.333 true 1.24,3.042 1.698,2.333 true 0.177,0.229 0.49,0.385 0.313,0.156 10 false *a 0.271,0.635 0.729,0.833 0.458,0.198 10 false N45 2.292,3.052 2.75,3.25 0.458,0.198 10 false E1 1.167,3.052 1.479,3.25 0.313,0.198 10 false E2
*a Front view of wire harness connector
(to Yaw Rate and Acceleration Sensor (Airbag ECU Assembly))


Turn the ignition switch off.


b.

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

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

for Type A: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type A)>PRECAUTION

for Type B: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type B)>PRECAUTION



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 N45 yaw rate and acceleration sensor (airbag ECU 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
N45-33 (E1) - Body ground Always Below 1 Ω
N45-32 (E2) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)