3.
Has a problem been found ?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Check CAN communication Line" procedure. |
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.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
Has a problem been found ?
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "Check CAN communication Line" procedure. |
Connect all of control module connector.
IG KEY ON.
Make CAN communication is wake up status. (Ex. . ON/OFF Door SW)
Measure signal waveform of B-CAN-HIGH terminal of SMK Module connector and chassis ground.
Measure signal waveform of B-CAN-LOW terminal of SMK Module connector and chassis ground.
Specification : Refer to Signal waveform and Data
Is the measrured signal waveform normal ?
| ▶ Go to next procedure. |
| ▶ If the measured value is battery voltage, check short to battery in CAN line. Repair or replace as necessary. And then, go to "Verification of Vehicle Repair" procedure. In case that Communication is in sleep mode, 12V will be measured. Therefore, check that communication is in Wake up status. ▶ If 0V is detected, Check short to ground, short between CAN high and low each other or open in CAN high or CAN low harness. Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure. |
IG KEY OFF.
Disconnect BCM(IPM)(Intelligent integrated Platform Module), SMK Module, SJB(Smart Junction Box) connector.
Measure resistance between communication line terminal of Smartkey Module connector and communication line of SJB harness connector.
Specification : About below 1Ω
Is the measured resistance within specification ?
| ▶ Check poor connection between harness connector and Smartkey Module or SJB : Thoroughly check the looseness, poor connection, bent, corrison, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure. ▶ Substitute with a known-good "SMK IMMO, SJB" and check for proper operation. If the problem is corrected, replace "SMK IMMO, SJB" and Go to "verification of vehicle repair" procedure. ▶ Perform "Key Teaching" procedure for SMK IMMO. with GDS. |
| ▶ Repair or replace open in CAN communication line and go to 'Verification of Vehicle Repair" procedure. |
