Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSHYUNDAI2013EQUUS ULTIMATEREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLELECTRONIC STABILITY CONTROL DIAGNOSISDTC C1282: YAW RATE & LATERAL G SENSOR-ELECTRICALW/HARNESS INSPECTIONINSPECTION/REPAIRSIGNAL CIRCUIT INSPECTION

2013 Hyundai Equus Ultimate

Signal Circuit Inspection

2013 Hyundai Equus UltimateSECTION Signal Circuit Inspection

Check for open in harness
1. IG "OFF"
2. Disconnect Yaw-rate & Lateral G & Longitudinal G sensor connector and HECU connector.
3. IG "ON"
4. Measure resistance between CAN-High terminal of the sensor harness connector and CAN-High terminal of the HECU harness connector.
5. Measure resistance between CAN-Low terminal of the sensor harness connector and CAN-Low terminal of the HECU harness connector.
  Specification: Below approx. 1Ω
  
  Fig 1: Measuring Resistance Between CAN High/Low Terminal Of Yaw-rate & Lateral G & Longitudinal G Sensor And HECU
  Courtesy of HYUNDAI MOTOR AMERICA
6. Is the measured value within specifications?
  YES
  - Go to " 2Check for short in harness" procedure.
  NO
  - Repair open in signal circuit between the sensor and HECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short in harness
1. IG "OFF"
2. Disconnect Yaw-rate & Lateral G & Longitudinal G sensor connector and HECU connector.
3. Measure resistance between CAN-High terminal and CAN-Low terminal of the sensor harness connector.
  Specification: Infinite
  
  Fig 2: Measuring Resistance Between CAN High And Low Terminals Of Yaw-Rate & Lateral G & Longitudinal G Sensor
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured value within specifications?
  YES
  - Substitute with a known-good Yaw-rate & Lateral G & Longitudinal G sensor and check for proper operation. If problem is corrected, replace Yaw-rate & Lateral G & Longitudinal G sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    In a case of replacing the Yaw-rate & Lateral G & Longitudinal G sensor, operate the sensor's calibration by scantool.
  NO
  - Repair short in signal circuit between the sensor and HECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.