The yaw-rate & Lateral G sensor is for the stability of a vehicle. The yaw-rate is to measure angular velocity while the Lateral G is to measure the force that makes a vehicle away from the center, when a vehicle cornering.
This code shows in case that there is an open or short in the circuit of the yaw-rate & lateral G sensor.
DTC No. | Detecting Condition | Possible Cause |
C1282 | [Yaw Rate Sensor Open, short to GND, B+] 1) When Vyaw > 4.85V or Vyaw < 0.15V continue 1sec, 2) The Monitoring starts 1 s after Power Up [Lateral G Sensor Open, Short to GND, B+] 1) When Vlg > 4.85V or Vlg < 0.15V continue 1sec, 2) The Monitoring starts 1 s after Power Up | - Yaw Rate & Lateral G Sensor Open, short to GND - Faulty Yaw Rate & Lateral G Sensor - Faulty HECU |
The ESP function is inhibited, while the ABS and EBD controls allowed.
The ESP warning lamp is ON, but the ABS and EBD warning lamps OFF.
CHECK POWER OF YAW-RATE & LATERAL G SENSOR
Disconnect the connector from the yaw-rate& Lateral G sensor, and measure the voltage between terminal 3 and 4 of the yaw-rate& Lateral G sensor.
Specification : 4.75~5.25 V
Is the voltage within the specification?
▶ Check harness and connector between the HECU and the yaw-rate & lateral G sensor.
▶ Check output of yaw-rate & lateral G sensor
CHECK OUTPUT OF YAW-RATE & LATERAL G SENSOR
When the ignition switch is OFF, measure the output voltage between terminal 1 of the yaw-rate sensor connector and the body ground.
When the ignition switch is OFF, measure the output voltage between terminal 2 of the lateral G sensor connector and the body ground.
Specification : 2.25~2.75V
Is the output voltage within the specification?
▶ Check harness and connector of the yaw-rate & lateral G sensor. If no error on harness and connector, replace and recheck the yaw-rate & lateral G sensor.
▶ Check output voltage of HECU connector for yaw-rate & lateral G sensor
CHECK OUTPUT VOLTAGE OF HECU CONNECTOR FOR YAW-RATE&LATERAL G SENSOR
When the ignition switch is OFF, measure the output voltage between terminal 41 of the HECU connector and the body ground.
When the ignition switch is OFF, measure the output voltage between terminal 9 of the HECU connector and the body ground.
Specification : 2.25~2.75V
Is the output voltage within the specification?
▶ Repair harness and connector between the HECU and the yaw-rate & lateral G sensor.
▶ After clearing the DTC and driving the vehicle at 40Km/h speed or more, if the ESP lamp is ON and the same DTC shows again, replace the HECU and recheck.
