ENTRY AND START SYSTEM(for Entry Function) Driver Side Door Entry Unlock Function does not Operate
| DTC Code | DTC Name |
|---|---|
| Driver Side Door Entry Unlock Function does not Operate |
DESCRIPTION
If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the touch sensor (connection between the certification ECU [smart key ECU assembly] and front door outside handle assembly [for driver door] [unlock sensor]).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
The entry and start system (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click hereClick here). Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
When using the GTS with the vehicle engine switch off, connect the GTS to the vehicle 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 Model Code "KEY REGIST" 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.
Check that there are no electrical key transmitter sub-assemblies in the vehicle.
Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output.
Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) precaution.
After repair, confirm that no DTCs are output by performing the "DTC Output Confirmation Operation".
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
Proceed to
OK
NG
READ VALUE USING GTS (UNLOCK DETECTION SWITCH)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Data List.
Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List
Tester Display
Measurement Item
Range
Normal Condition
Diagnostic Note
FR Door Lock Pos
Front RH door unlock detection switch signal*1
UNLOCK or LOCK
UNLOCK: Front RH door unlocked
LOCK: Front RH door locked
-
FL Door Lock Pos
Front LH door unlock detection switch signal*2
UNLOCK or LOCK
UNLOCK: Front LH door unlocked
LOCK: Front LH door locked
-
*1: for RHD
*2: for LHD
OK
On the GTS screen, the display changes between LOCK and UNLOCK as shown in the chart above.
Result
Proceed to
OK
NG
READ VALUE USING GTS (UNLOCK SENSOR)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Entry & Start / Data List.
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
D-Door Touch Sensor
Driver door touch sensor (unlock sensor)
ON or OFF
ON: Driver door touch sensor (unlock sensor) touched
OFF: Driver door touch sensor (unlock sensor) not touched
Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
OK
The GTS display changes correctly in response to the operation of the front door outside handle assembly (for driver door).
Result
Proceed to
OK
NG
OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY - CERTIFICATION ECU AND BODY GROUND)
Disconnect the J6*1 or I6*2 front door outside handle assembly (for driver door) connector.
*1: for LHD
*2: for RHD
Disconnect the G82 and G84 certification ECU (smart key ECU assembly) connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
for LHD
Tester Connection
Condition
Specified Condition
J6-4 (SENS) - G84-22 (SEN1)
Always
Below 1 Ω
G82-11 (E) - Body ground
Always
Below 1 Ω
J6-4 (SENS) or G84-22 (SEN1) - Body ground
Always
10 kΩ or higher
for RHD
Tester Connection
Condition
Specified Condition
I6-4 (SENS) - G84-22 (SEN1)
Always
Below 1 Ω
G82-11 (E) - Body ground
Always
Below 1 Ω
I6-4 (SENS) or G84-22 (SEN1) - Body ground
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) (DRIVER DOOR UNLOCK SENSOR SIGNAL INPUT)
Connect the J6*1 or I6*2 front door outside handle assembly (for driver door) connector.
*1: for LHD
*2: for RHD
*a
Component with harness connected
(Certification ECU [Smart Key ECU Assembly])
*b
Waveform
*c
In actuality, sampling is being performed
-
-
Connect the G82 and G84 certification ECU (smart key ECU assembly) connectors.
Using an oscilloscope, check the waveform.
OK
Tester Connection
Switch Condition
Tool Setting
Specified Condition
G84-22 (SEN1) - G82-11 (E)
Procedure
Engine switch off
Electrical key transmitter sub-assembly brought outside vehicle
All doors locked
Electrical key transmitter sub-assembly not sufficiently close to vehicle
Driver door unlock sensor not touched → touched
2 V/DIV., 500 ms/DIV.
Pulse generation
(See waveform)
Result
Proceed to
OK
NG
OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)