DESCRIPTION
When the back door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) the power door lock control system, 2) the electrical key antenna (outside luggage) or 3) the certification ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) 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
(See page ).
OK:
Door locks operate normally.
NG | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
2. |
CHECK WAVE ENVIRONMENT |
(a) Bring the electrical key transmitter approximately 0.3 m (0.984 ft.) from
the electrical key antenna (outside luggage) and perform an entry back door unlock
function check (See page ).
NOTICE:
If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication may not possible.
HINT:
If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
OK:
Entry function operates normally.
OK | ![]() |
AFFECTED BY WAVE INTERFERENCE |
|
3. |
CHECK ELECTRICAL KEY ANTENNA IN KEY DIAGNOSTIC MODE |
(a) Check the following antenna in the key diagnostic mode (See page
).
(1) Check the electrical key antenna (outside luggage).
When the electrical key transmitter is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage), check that the wireless door lock buzzer sounds.
OK:
Wireless door lock buzzer sounds.
OK | ![]() |
REPLACE CERTIFICATION ECU |
|
4. |
CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU) |
(a) Disconnect the N21 antenna connector.
(b) Disconnect the F78 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N21-1 (CLG5) - F78-19 (CLG8) |
Always |
Below 1 Ω |
N21-2 (CLGB) - F78-20 (CG8B) |
Always |
Below 1 Ω |
F78-19 (CLG8) - Body ground |
Always |
10 kΩ or higher |
F78-20 (CG8B) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE) |
(a) Remove the electrical key antenna (outside luggage) (See page
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1 (CLG5) - 2 (CLGB) |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE CERTIFICATION ECU |
NG | ![]() |
REPLACE ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE) |
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Certification ECU
Main body ECU
Door unlock standby control signal
Door lock/unlock output req ...
Rear No. 1 Seat Inner Belt Assembly(for 60/40 Split Double-folding Seat Type
Rh Side)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT REAR NO. 1 SEAT OUTER BELT ASSEMBLY RH
(a) Pull the rear seat cushion band, release the lock and lift up the
back of the seat cushion to rotate it forward.
...