OBDII Code List

P1766 HYUNDAI - CAN Communication Bus Off

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • CAN Bus
  • ABS Module, TCCU connector looseness and poor terminal to wire connection
  • CAN comm line circuit open/short
  • Faulty ECU
  • Faulty ABS Module

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1766 Hyundai Description

Due to vehicle electronic control, many control units apply to the vehicle and these perform many controls by receiving signals from the sensor. So the common use among each sensor and the need of comunizing informations became a prominent figure. CAN communication method is used at power train (ABS, transmission, engine, ECS etc) control of vehicle because it withstands electronic external noise by generating spark and can high-speed communication. Though CAN communication, ECM, and TCM hold engine RPM, APS, step of transmission, decreasing of torque in common and perform the active control.
OBDII Code P1766 Hyundai - CAN Communication Bus Off -

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P1766 HYUNDAI Comments

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