DESCRIPTION
When the wireless door lock and unlock functions operate, the communication circuit between the door lock receiver assembly and certification ECU (smart key ECU assembly) is normal. When the entry lock and unlock functions do not operate, radio wave interference, a customized entry cancel function, or a communication error between the key and vehicle in the smart communication circuit, is suspected.
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 (ENTRY CANCEL FUNCTION) |
(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/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Auto Entry Cancel SW |
Entry function cancel / ON or OFF |
Mode status displayed |
- |
Result |
Proceed to |
---|---|
Entry function cancel is off. |
A |
Entry function cancel is on. |
B |
B |
PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION |
|
3. |
CHECK WAVE ENVIRONMENT |
(a) Move the key as described below and perform the operation inspection.
HINT:
(b) Bring the key near the driver door outside handle assembly, and perform a front driver door entry lock and unlock operation check. NOTICE: If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible. |
|
(c) Bring the key near the front passenger door outside handle assembly, and perform a front passenger door entry lock and unlock operation check. NOTICE: If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible. |
|
(d) Bring the key near the outside electrical key oscillator (for rear side), and perform an entry back door open function check. NOTICE: If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication is not possible. HINT: If the inspection result indicates that the problem only occurs in certain locations or 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. Result:
|
|
B |
AFFECTED BY WAVE INTERFERENCE |
C |
GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) |
|
4. |
PERFORM KEY DIAGNOSTIC MODE INSPECTION |
(a) Diagnostic mode inspection (door electrical key oscillator (for driver side)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Driver Side. (5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds. |
|
(b) Diagnostic mode inspection (door electrical key oscillator (for front passenger side)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Passenger Side. (5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds. |
|
(c) Diagnostic mode inspection (indoor electrical key oscillator (for front floor)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Front Room. (5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds. |
|
(d) Diagnostic mode inspection (indoor electrical key oscillator (for center floor)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Rear Room. (5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds. |
|
(e) Diagnostic mode inspection (indoor electrical key oscillator (for rear floor)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Back Door (inside). (5) When the key is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds. |
|
(f) Diagnostic mode inspection (outside electrical key oscillator (for rear side)) (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Enter the following menus: Body Electrical / Smart Key / Key Communication Check / Overhead + Back Door (outside). (5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds. Result:
|
|
B |
GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table for Each Door) |
C |
GO TO OTHER PROBLEM (Proceed to Room Oscillator does not Recognize Key) |
D |
GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) |
E |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
5. |
CHECK ELECTRICAL KEY TRANSMITTER |
(a) Check if another registered key is available.
Result |
Proceed to |
---|---|
Another registered key is not available. |
A |
Another registered key is available. |
B |
B |
GO TO STEP 7 |
|
6. |
REGISTER ELECTRICAL KEY TRANSMITTER |
(a) Register a new key (See page ).
|
7. |
CHECK ELECTRICAL KEY TRANSMITTER (OPERATION) |
(a) Using the key registered in the previous step or another registered key, check that the entry function operates normally (See page ).
OK:
Entry function operates normally.
OK |
REPLACE ELECTRICAL KEY TRANSMITTER (REPLACE MALFUNCTIONING KEY) |
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Speed Signal Circuit
DESCRIPTION
The combination meter assembly receives the vehicle speed signal from this circuit.
The wheel speed sensors produce an output that varies according to the vehicle speed.
The wheel speed sensor output is received by the skid control ECU which u ...
TC and CG Terminal Circuit
DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic
mode. If a malfunction is present, the MIL will blink.
HINT:
When a particular warning light remains blinking, a ground short in the wiring
of terminal TC ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the air conditioning system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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