Follow us on Twitter and win Autohex II Scan Tool for Kia and Hyundai (worth 945.00 USD)

B1604 CAN Timeout between SMK and (IPM or BCM)

AutoHex Online Help: Hyundai TUCSON/ix35(LM/EL) 2012
Component inspection
General Description

CAN Communication is a circuit, consists of CAN LOW and CAN HIGH, in order to communicate among control units.

Control Modules are respectively communicating via CAN line in order to control Body Electrical.



DTC Description

This code is outputted when BCM can't receive data from SMK by CAN Line for 10 sec.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

Checking receiving status of CAN message from IPM

Check IPM installation

Check fuses related to IPM

Check open in CAN high /Low of IPM

Check open in CAN high/low in SMK

Enable Conditions

SMK IGN ON or Engine ON

Threshold value

No CAN signal from IPM for 3 seconds

Diagnostic Time

Right after DTC detected

Diagnostic Circuit Diagram
Signal Waveform & Data