DESCRIPTION
If the entry lock function does not operate for the front passenger door only, but the entry unlock function operates, the request code is being transmitted properly from the for passenger door. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door)).
WIRING DIAGRAM
Figure 1. for LHD
Figure 2. for RHD
CAUTION / NOTICE / HINT
Note
The 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 entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
When using the GTS with the engine 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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.
Check that there are no electrical key transmitter sub-assemblies in the vehicle.
Before replacing the certification ECU (smart key ECU assembly), refer to Precaution.
After repair, confirm that no DTCs are output.
PROCEDURE
CHECK POWER DOOR LOCK CONTROL SYSTEM
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.
| OK |
|---|
| Door locks operate normally. |
| Result | |||
|---|---|---|---|
|
| NG |
|
GO TO POWER DOOR LOCK CONTROL SYSTEM Click here |
| OK |
|
READ VALUE USING GTS (P-DOOR TRIGGER SWITCH)
Turn the engine switch off.
Open and close the front passenger door.
Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the front passenger door.
Read the Data List according to the display on the GTS.
| *A | for RHD |
| *B | for LHD |
| *a | Lock Sensor |
Touch the lock sensor of the front door outside handle assembly (for front passenger door).
Tech Tips
If the door does not lock even when touching the lock sensor, touch it with your palm.
When checking the operation of the lock sensor again, make sure to perform the procedure from step (a).
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| P-Door Trigger Switch | Front passenger door touch sensor (lock sensor) | ON or OFF | ON: Front passenger door touch sensor (lock sensor) touched OFF: Front passenger door touch sensor (lock sensor) not touched |
|
| Tester Display |
|---|
| P-Door Trigger Switch |
Tech Tips
When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.*
*: w/o Double Locking System
| OK |
|---|
| The GTS display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door). |
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| NG |
|
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))
Disconnect the R1*1 or S5*2 certification ECU (smart key ECU assembly) connector.
*1: for LHD
*2: for RHD
Disconnect the M11*1 or N11*2 front door outside handle assembly (for front passenger door) connector.
*1: for LHD
*2: for RHD
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
Reconnect the M11*1 or N11*2 front door outside handle assembly (for front passenger door) connector.
*1: for LHD
*2: for RHD
Reconnect the R1*1 or S5*2 certification ECU (smart key ECU assembly) connector.
*1: for LHD
*2: for RHD
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) (INPUT TO CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
| *A | for LHD | *B | for RHD |
| *a | Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
*b | Waveform 1 |
| *c | Lock sensor not touched | *d | Lock sensor touched |
Using an oscilloscope, check the waveform.
| OK | ||||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
|
*: For details about the entry function detection area, refer to Operation Check.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| NG |
|
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) Click here |