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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Electronically Controlled Brake System (HV) - Diagnostic Codes (07 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1240-00: Yaw Rate Sensor / Multi-axis Acceleration Sensor Module "A" [11/2023 - ] >> Description

DTC C1240-00: Yaw Rate Sensor / Multi-axis Acceleration Sensor Module "A" [11/2023 - ]: Description

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The airbag sensor assembly has a built-in yaw rate and acceleration sensor.

If the identification ID of the yaw rate and acceleration sensor (airbag sensor assembly) is different to that stored in the No. 2 skid control ECU (brake actuator assembly), this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C1240-00 Yaw Rate Sensor / Multi-axis Acceleration Sensor Module "A" The yaw rate and acceleration sensor (airbag sensor assembly) identification information stored in the No. 2 skid control ECU (brake actuator assembly) is not consistent with the yaw rate and acceleration sensor (airbag sensor assembly) identification information sent via CAN communication continuously for 1 second or more.
  • Incorrect yaw rate and acceleration sensor (airbag sensor assembly) installed
  • No. 2 skid control ECU (brake actuator assembly)
Comes on
  • SAE Code: C1240
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)