Code : P1766
Make : HYUNDAI
Description : P1766 HYUNDAI CAN Communication Bus Off
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
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.
