Inspection steps
CAUTION:
- The entry & start system has functions that use the CAN communication. Before performing troubleshooting, perform the inspection in "How to troubleshoot ", and check that there are no communication problems. (Refer to HOW TO PROCEED WITH TROUBLESHOOTING )
- Before replacing the collation ECM (smart key ECM ASSY), refer to "entry & start system (entry function)". (Refer to Entry & start system (entry function) )
- After repair, perform the [DTC output confirmation operation], and check that the DTC is not output.
- Before performing the following inspection steps, check the fuses related to this system.
- Checking the harnesses and connectors (power supply)
- Remove the D48 connector of the collation ECM (smart key ECM ASSY).
- Measure the voltage according to the following table.
VOLTAGE SPECIFICATIONInspection terminals Inspection conditions Standard value D48-2 (+B) - chassis ground Always 9.5 to 16V NG: Rear side of the wiring harness connector (See "collation ECM (smart key ECM ASSY)")
OK: Go to Next Step.
- Checking the harnesses and connectors (grounding)
- Measure the resistance according to the following table.
RESISTANCE SPECIFICATIONInspection terminals Inspection conditions Standard value D48-11 (GND) - Chassis ground Always 1 Ωor less NG: Repair or replacement of the harnesses or connectors of
OK
- Unit inspection of the collation ECM (smart key ECM ASSY)
- Reconnect the D48 connector of the collation ECM (smart key ECM ASSY).
- Measure the voltage according to the following table.
VOLTAGE SPECIFICATIONInspection terminals Inspection conditions Standard value D41-6 (IG1D) - chassis ground Engine switch on (ACC) →Engine switch on (IG) 1V or less →9 V or more D48-9 (IG2D) - chassis ground Engine switch on (ACC) →Engine switch on (IG) 1V or less →9 V or more NG: Replacement of the collation ECM (smart key ECM ASSY)
OK