RM36D0EC _58 Vehicle Interior _083094 THEFT DETERRENT / KEYLESS ENTRY _0402998 SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model) J

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model)  Back Door Entry Unlock Function does not Operate  


DESCRIPTION

If the entry unlock function does not operate for the back door only, but the entry lock function operates, the request code is being transmitted properly from the back door. In this case, there may be a problem related to the unlock switch (connection between the back door opener switch assembly and certification ECU (smart key ECU assembly)).

WIRING DIAGRAM

E402862E24
1.51,1.969 3.823,2.167 2.313,0.198 10 false Back Door Opener Switch Assembly 5.281,2.042 6.813,2.521 1.531,0.479 10 false Certification ECU (Smart Key ECU Assembly) 5.896,0.833 6.354,1.115 0.458,0.281 10 false TSW6 5.896,1.292 6.354,1.573 0.458,0.281 10 false TSW5 5.302,1.875 5.76,2.156 0.458,0.281 10 false M59 5.635,0.677 5.875,0.927 0.24,0.25 10 false 17 5.646,1.177 5.885,1.427 0.24,0.25 10 false 16 2.823,0.656 3.063,0.906 0.24,0.25 10 false 1 2.844,1.208 3.083,1.458 0.24,0.25 10 false 3 2.646,0.667 3.104,0.906 0.458,0.24 10 false L 2.583,1.188 3,1.417 0.417,0.229 10 false UL 1.521,1.167 1.76,1.417 0.24,0.25 10 false 2 1.719,1.167 2.094,1.375 0.375,0.208 10 false E 1.51,1.833 1.969,2.115 0.458,0.281 10 false R10 1.948,0.917 2.75,1.146 0.802,0.229 10 false Lock Switch 1.781,1.406 2.719,1.688 0.938,0.281 10 false Unlock Switch

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Entry&Start. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

The smart entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

·

After repair, confirm that no DTCs are output.

·

Check that there are no electrical key transmitter sub-assemblies in the vehicle.



PROCEDURE

1.CHECK POWER DOOR LOCK CONTROL SYSTEM
a.

When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation.

Click hereVehicle Interior>DOOR LOCK>POWER DOOR LOCK CONTROL SYSTEM>OPERATION CHECK

OK:

Door locks operate normally.



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS (TRUNK LID/BACK DOOR UNLOCK SWITCH)

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

Click hereVehicle Interior>DOOR LOCK>POWER DOOR LOCK CONTROL SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


2.READ VALUE USING GTS (TRUNK LID/BACK DOOR UNLOCK SWITCH)
a.

Read the Data List according to the display on the GTS.

Body Electrical > Entry&Start > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Trunk Lid/Back Door Unlock Switch Back door opener switch assembly (unlock switch) ON or OFF ON: Back door opener switch assembly (unlock switch) pressed
OFF: Back door opener switch assembly (unlock switch) not pressed
·

Displays whether the back door opener switch assembly (unlock switch) is on or off.

·

Use this Data List item to help determine if there is a switch malfunction when the back door unlock function does not operate.


Body Electrical > Entry&Start > Data List
Tester Display
Trunk Lid/Back Door Unlock Switch
50003 440 14
OK:

The GTS display changes correctly in response to the operation of the back door opener switch assembly.



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

3.CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
3.CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
a.

Disconnect the R10 back door opener switch assembly connector.


b.

Disconnect the M59 certification ECU (smart key ECU assembly) connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
R10-3 (UL) - M59-16 (TSW5) Always Below 1 Ω
R10-3 (UL) or M59-16 (TSW5) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT BACK DOOR OPENER SWITCH ASSEMBLY (UNLOCK SWITCH)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT BACK DOOR OPENER SWITCH ASSEMBLY (UNLOCK SWITCH)

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR OPENER SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPLACE BACK DOOR OPENER SWITCH ASSEMBLY

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR OPENER SWITCH>REMOVAL