W/Harness Inspection

Smart Key Unit
B1604 CAN Timeout between SMK and (IPM or BCM) - Inspection/Repair:_:W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
3. Has a problem been found ?






CAN communication Line Inspection

Check CAN communication
1. Connect all of control module connector.
2. IG KEY ON.
3. Make CAN communication is wake up status. (Ex. ON/OFF Door SW)
4. Measure signal waveform of B-CAN-HIGH terminal of SMK Module connector and chassis ground.
5. Measure signal waveform of B-CAN-LOW terminal of SMK Module connector and chassis ground.

Specification :Refer to Signal waveform and Data








6. Is the measrured signal waveform normal ?





Check open in CAN communication line
1. IG KEY OFF.
2. Disconnect BCM(IPM)(Intelligent integrated Platform Module), Cluster(CLU:Cluster), SMK Module, SJB(Smart Junction Box) connector.
3. Measure resistance between communication line terminal of Smartkey Module connector and communication line of BCM(IPM) harness connector.

Specification :About below 1Ohms








4. Is the measured resistance within specification ?