DESCRIPTION
If the entry lock function does not operate for the driver door only, but the entry unlock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the front door outside handle assembly LH (lock sensor) (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly LH [lock sensor]).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK CONTROL SYSTEM |
(a) When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation (See page ).
OK:
Door locks operate normally.
NG |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
2. |
READ VALUE USING TECHSTREAM (D-DOOR TRIGGER SWITCH) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Data List.
(e) Read the Data List according to the display on the Techstream.
Smart Key
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
D-Door Trigger Switch |
Driver door touch sensor (lock sensor) / ON or OFF |
ON: Driver door touch sensor (lock sensor) touched OFF: Driver door touch sensor (lock sensor) not touched |
|
OK:
The Techstream display changes correctly in response to the operation of the front door outside handle assembly LH.
Result
Result |
Proceed to |
---|---|
NG |
A |
OK |
B |
B |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
3. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH) |
(a) Disconnect the C29 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the F40 front door outside handle assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
C29-4 (CLG1) - F40-6 (ANT1) |
Always |
Below 1 Ω |
C29-3 (CG1B) - F40-4 (ANT2) |
Always |
Below 1 Ω |
C29-4 (CLG1) or F40-6 (ANT1) - Body ground |
Always |
10 kΩ or higher |
C29-3 (CG1B) or F40-4 (ANT2) - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the F40 front door outside handle assembly LH connector.
(e) Reconnect the C29 certification ECU (smart key ECU assembly) connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH (INPUT TO DRIVER DOOR LOCK SENSOR) |
(a) Using an oscilloscope, check the waveform.
Text in Illustration
*a |
Component with harness connected (Certification ECU (smart key ECU assembly)) |
*b |
Waveform 1 |
*c |
Lock sensor not touched |
*d |
Lock sensor touched |
OK:
Tester Connection |
Switch Condition |
Tool Setting |
Specified Condition |
---|---|---|---|
C29-4 (CLG1) - C29-11 (E) |
Procedure:
|
5 V/DIV., 40 ms/DIV. |
Pulse generation (See waveform 1) |
OK |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG |
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH |
Distance Control Switch Circuit
DESCRIPTION
The distance control switch is used to set the distance for vehicle-to-vehicle
distance control mode. The distance control switch is installed in the steering
pad switch assembly. The vehicle-to-vehicle distance set value can be changed by
operating the steering pad switch assembl ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
VSC OFF Switch Circuit
DESCRIPTION
The skid control ECU assembly is connected to the combination meter assembly
via CAN communication.
Pressing the VSC OFF switch turns off TRAC operation, and pressing and holding
this switch turns off TRAC and VSC operation.
If TRAC and VSC operations are turned off, the TRAC OFF ...