All Door Entry Lock/Unlock Functions Do Not Operate, But Wireless Functions Operate
THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate
- All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate
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.
INSPECTION PROCEDURE
NOTICE:
* The smart access system with push-button start (for entry function) uses a LIN communication system and BEAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting How To Proceed With Troubleshooting. Troubleshoot the smart access system with push-button start (for entry function) after confirming that the communication system is functioning properly.
* Confirm that another key is not in the cabin.
PROCEDURE
1. 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 Access / Data List.
(e) Read the Data List according to the display on the Techstream.
Smart Access (Certification ECU (Smart Key ECU Assembly))
Result:
B -- PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION Smart Access System With Push-Button Start (for Entry Function)
A -- Continue to next step.
2. CHECK WAVE ENVIRONMENT
(a) Move the key as described below and perform the operation inspection.
HINT
* When the key is brought near the door outside handle assembly or electrical key antenna, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
* The transmitting waves of the wireless functions and entry functions are the same, but the wave logic is different. Therefore, it is possible that only the wireless functions or only the entry functions are affected by wave interference.
(b) Bring the key near the driver door outside handle assembly, and perform a front driver door entry lock and unlock operation check.
HINT
When pressing the lock switch, hold the key about 1 m (3.28 ft.) above the ground and about 0.3 m (0.984 ft.) away from the vehicle as shown in the illustration.
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.
HINT
When pressing the lock switch, hold the key about 1 m (3.28 ft.) above the ground and about 0.3 m (0.984 ft.) away from the vehicle as shown in the illustration.
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 luggage compartment), and perform an entry luggage compartment door open function check.
HINT
When pressing the luggage door opener outer switch, hold the key about 1 m (3.28 ft.) above the ground and about 0.3 m (0.984 ft.) away from the vehicle as shown in the illustration.
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 is 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:
C -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
B -- AFFECTED BY WAVE INTERFERENCE
A -- Continue to next step.
3. 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 Access / Utility / Communication Check (Key Diag Mode) / Overhead + Driver Side.
(5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
HINT
Hold the key at the same height as the door outside handle (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration.
(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 Access / Utility / Communication Check (Key Diag Mode) / Overhead + Passenger Side.
(5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
HINT
Hold the key at the same height as the door outside handle (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration.
(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 Access / Utility / Communication Check (Key Diag Mode) / Overhead + Front Room.
(5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
HINT
Place the key on the driver or front passenger seat cushion.
(d) 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 / Utility / Smart Access / Communication Check (Key Diag Mode) / Overhead + Rear Room.
(5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
HINT
Place the key on the rear seat cushion.
(e) Diagnostic mode inspection (indoor electrical key oscillator (for luggage compartment))
(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 / Utility / Smart Access / Communication Check (Key Diag mode) / Overhead + Luggage (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.
HINT
Place the key on the luggage area.
(f) Diagnostic mode inspection (outside electrical key oscillator (for luggage compartment))
(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 Access / Utility / Communication Check (Key Diag Mode) / Overhead + Luggage (outside).
(5) When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
HINT
Hold the key at the same height as the rear bumper upper surface and align with the center of the rear of the vehicle (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration.
Result:
E -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal
D -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
C -- GO TO OTHER PROBLEM (Room Oscillator does not Recognize Key) Symptom Related Diagnostic Procedures
B -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table Flow Chart for Each Door) Problem Symptoms Table
A -- Continue to next step.
4. REPLACE ELECTRICAL KEY TRANSMITTER
(a) Replace the key.
NEXT -- Continue to next step.
5. REGISTER ELECTRICAL KEY TRANSMITTER
(a) Register the key Engine Immobilizer System.
NEXT -- Continue to next step.
6. CHECK ELECTRICAL KEY TRANSMITTER (OPERATION)
(a) Check that the entry functions operate normally Operation Check.
OK:
Entry functions operate normally.
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal
OK -- END (ELECTRICAL KEY TRANSMITTER WAS DEFECTIVE)