Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001EAAB
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): C052096; Multi-axis Acceleration Sensor Module "A" Component Internal Failure; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]

DTC

C052096

Multi-axis Acceleration Sensor Module "A" Component Internal Failure

DESCRIPTION

The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.

The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via CAN communication.

These DTCs may be stored if one of the following occurs:

  • Yaw rate and acceleration sensor (airbag ECU assembly) installation abnormality.
  • Yaw rate and acceleration sensor signal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C052096

Multi-axis Acceleration Sensor Module "A" Component Internal Failure
  • When the vehicle is being driven, the offset of the acceleration sensor is less than -2.25 m/s2 or more than 2.25 m/s2.
  • With the +BS terminal voltage between 9.6 and 16.5 V, an acceleration sensor internal malfunction signal is received from the acceleration sensor (airbag ECU assembly).
  • The value (Forward and rearward G) of the acceleration sensor is less than -14.6 m/s2 or more than 14.6 m/s2 for 3 seconds or more.
  • When the vehicle is stopped, the value (lateral) of the acceleration sensor is less than -7 m/s2 or more than 7 m/s2 for 0.4 seconds or more.
  • The value (lateral) of the acceleration sensor is less than -14.6 m/s2 or more than 14.6 m/s2 for 0.8 seconds or more.
  • Acceleration sensor (airbag ECU assembly) installation
  • Acceleration sensor (airbag ECU assembly)

DTC Detection Conditions: C052096

 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Pattern 5

Diagnosis Condition

The vehicle is being driven.

○

○

-

-

-

With the +BS terminal voltage between 9.6 and 16.5 V.

-

-

○

-

-

Malfunction Status

The offset of the acceleration sensor is less than -2.25 m/s2.

○

-

-

-

-

The offset of the acceleration sensor is more than 2.25 m/s2.

-

○

-

-

-

An acceleration sensor internal malfunction signal is received from the acceleration sensor (airbag ECU assembly).

-

-

○

-

-

The value (Forward and rearward G) of the acceleration sensor is less than -14.6 m/s2.

-

-

-

○

-

The value (Forward and rearward G) of the acceleration sensor is more than 14.6 m/s2.

-

-

-

-

○

Detection Time

-

-

-

3 seconds or more.

3 seconds or more.

Number of Trips

1 trip

1 trip

1 trip

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C052096

 

Vehicle Condition

Pattern 6

Pattern 7

Pattern 8

Pattern 9

Diagnosis Condition

The vehicle is stopped.

○

○

-

-

Malfunction Status

The value (lateral) of the acceleration sensor is less than -7 m/s2.

○

-

-

-

The value (lateral) of the acceleration sensor is more than 7 m/s2.

-

○

-

-

The value (lateral) of the acceleration sensor is less than -14.6 m/s2.

-

-

○

-

The value (lateral) of the acceleration sensor is more than 14.6 m/s2.

-

-

-

○

Detection Time

0.4 seconds or more.

0.4 seconds or more.

0.8 seconds or more.

0.8 seconds or more.

Number of Trips

1 trip

1 trip

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

CAUTION / NOTICE / HINT

NOTICE:

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 here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): UTILITY

PROCEDURE

1.

CHECK FREEZE FRAME DATA (LATERAL G AND FORWARD AND REARWARD G)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

(d) Select a DTC to display the Freeze Frame Data.

(e) Read the freeze frame data of DTC C052096.

Chassis > Brake/EPB

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Lateral G

Lateral G

Min.: -25.105 m/s2

Max.: 24.908 m/s2

Turning right: -25.105 to 0.000 m/s2

Turning left: 0.000 to 24.908 m/s2

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and rearward G

Min.: -25.105 m/s2

Max.: 24.908 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During acceleration/deceleration: Changes in proportion with acceleration

Chassis > Brake/EPB > DTC(C052096) > Freeze Frame Data

Tester Display

Lateral G

Forward and Rearward G

Result

Proceed to

The value of Lateral G or Forward and rearward G is less than -14.6 m/s2 or more than 14.6 m/s2.

A

Other than above.

B
A

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B

2.

CHECK FREEZE FRAME DATA (LATERAL G AND VEHICLE SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

(d) Select a DTC to display the Freeze Frame Data.

(e) Read the freeze frame data of DTC C052096.

Chassis > Brake/EPB

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Lateral G

Lateral G

Min.: -25.105 m/s2

Max.: 24.908 m/s2

Turning right: -25.105 to 0.000 m/s2

Turning left: 0.000 to 24.908 m/s2

During turning: Changes in proportion with lateral acceleration

Vehicle Speed

Vehicle speed (vehicle speed used for each control)

Min.: 0.0 km/h (0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Chassis > Brake/EPB > DTC(C052096) > Freeze Frame Data

Tester Display

Lateral G

Vehicle Speed

Result

Proceed to

The value of Vehicle speed is 0 km/h (0 mph) and the value of Lateral G is less than -7 m/s2 or more than 7 m/s2.

A

Other than above.

B
A

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B

3.

CHECK AIRBAG ECU ASSEMBLY INSTALLATION

(a) Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.

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OK:

The yaw rate and acceleration sensor (airbag ECU assembly) is tightened to the specified torque.

The yaw rate and acceleration sensor (airbag ECU assembly) is not installed in a tilted position.

OK

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NG

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