Vitara error codes

[onlystunna]

Can anyone assist with what these codes mean? Picked them up with a diagnostic scan on my J20 vitara 07 model. Been getting some idling issues even after servicing fuel injection

1685 - CAN communication receiving signal is abnormal (ABS)

1678 - CAN communication receiving signal is abnormal (BCM)

1676 - CAN communication receiving signal is abnormal (AT)

[Big Z]

Get a copy of the service manual and see what it says.
You also need access to a scan tool that checks the ecm, tcm,bcm and abs.