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.
*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 |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE MASTER CYLINDER FLUID PRESSURE CHANGE
(a) Inspect the battery positive voltage.
Battery positive voltage:
10 to 14 V
(b) Turn the ignition switch to OFF, and depress the brake pedal more than 20
times.
HINT:
When pressure in the accumulator ...
Electronic Circuit Inspection Procedure
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
1. BASIC INSPECTION
(a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS
(1) Unless otherwise stated, all resistance measurements should be made at an
ambient temperature of 20°C (68°F). Resistance measurements may be inaccurate if
measured at high tempe ...
Disposal
DISPOSAL
CAUTION / NOTICE / HINT
CAUTION:
Before performing pre-disposal deployment of any SRS part, review and closely
follow all applicable environmental and hazardous material regulations. Predisposal
deployment may be considered hazardous material treatment.
PROCEDURE
1. PRECAUTION
...