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Home >> Toyota >> 2021 >> RAV4 LE, FWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Vacuum Brake Booster) - Diagnostic Codes (3 Of 8) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster) >> DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Deceleration Sensor undone [11/2018 - 02/2019] >> Description

DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Deceleration Sensor undone [11/2018 - 02/2019]: Description

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

The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2).

HINT: 

If there are malfunctions in the bus lines between the yaw rate and acceleration sensor (airbag ECU assembly) and the CAN communication system, DTCs U0123 (Lost Communication with Yaw Rate Sensor Module) and U0124 (Lost Communication with Lateral Acceleration Sensor Module) will be stored.

These DTCs (C1210 and C1336) will also be stored when zero point calibration has not been completed.

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area Note
C1210 Zero Point Calibration of Yaw Rate Sensor Undone - Yaw rate sensor zero point calibration is incomplete.
  • Zero point calibration undone
  • Yaw rate sensor (Airbag ECU assembly)
  • Skid control ECU (Brake booster with master cylinder assembly)
(Perform zero point calibration and check for DTCs. If no DTCs are output again, the sensor is normal.)
-
C1336 Zero Point Calibration of Deceleration Sensor undone - Either of the following is detected:
  1. The vehicle is driven normally without zero point calibration completed.
  2. After completing zero point calibration, zero point voltage of the sensor is not within the range of 2.38 to 2.62 V.
  • Zero point calibration undone
  • Acceleration sensor (Airbag ECU assembly)
  • Skid control ECU (Brake booster with master cylinder assembly)
(Perform zero point calibration and check for DTCs. If no DTCs are output again, the sensor is normal.)
-
DTC DETECTION CONDITIONS: C1336

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status The vehicle is driven normally without zero point calibration completed ◦ -
After completing zero point calibration, zero point voltage of the sensor is not within the range of 2.38 to 2.62 V - ◦
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

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