DESCRIPTION
If the back door entry lock function does not operate but the back door open function operates, the communication between the vehicle and key is normal. As a faulty part, the entry lock switch circuit (from the back door opener switch assembly (lock switch) to the certification ECU (smart key ECU assembly)) is suspected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation (See page ).
OK:
Door locks operate normally.
NG |
GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) |
|
2. |
READ VALUE USING TECHSTREAM (BACK DOOR OPENER 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 (Certification ECU (Smart Key ECU Assembly))
Tester Display |
Measurement Item/Display |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Tr/B-Door Lock SW |
Back door opener switch assembly (lock switch) / ON or OFF |
ON: Back door opener switch assembly (lock switch) pushed OFF: Back door opener switch assembly (lock switch) not pushed |
- |
OK:
On the Techstream screen, the display changes between ON and OFF as shown in the chart above.
OK |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
3. |
INSPECT BACK DOOR OPENER SWITCH ASSEMBLY |
(a) Remove the back door opener switch assembly (See page ). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Position |
Specified Condition |
---|---|---|
1 (L) - 2 (E) |
Back door opener switch assembly (lock switch) not pushed (OFF) |
10 kΩ or higher |
1 (L) - 2 (E) |
Back door opener switch assembly (lock switch) pushed (ON) |
Below 1 Ω |
*1 |
Component without harness connected (Back Door Opener Switch Assembly) |
NG |
REPLACE BACK DOOR OPENER SWITCH ASSEMBLY |
|
4. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BACK DOOR OPENER SWITCH) |
(a) Disconnect the certification ECU (smart key ECU assembly) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-1 (TSW6) - R13-1 (L) |
Always |
Below 1 Ω |
D25-1 (TSW6) - Body ground |
Always |
10 kΩ or higher |
R13-1 (L) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
*2 |
Front view of wire harness connector (to Back Door Opener Switch Assembly) |
OK |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR BUMPER ASSEMBLY
(See page )
2. REMOVE ULTRASONIC SENSOR CLIP
(a) Disconnect the connector.
Text in Illustration
*A
LH Side
*B
...
Reverse Signal Circuit
DESCRIPTION
The radio and display receiver assembly receives a reverse signal from the park/neutral
position switch assembly.
WIRING DIAGRAM
PROCEDURE
1.
CHECK BACK-UP LIGHT
(a) Move the shift lever to R and check if th ...