DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK POWER DOOR LOCK OPERATION
READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)
READ VALUE USING INTELLIGENT TESTER (TOUCH SENSOR)
CHECK WAVE ENVIRONMENT
PERFORM KEY DIAGNOSTIC MODE INSPECTION
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - DOOR ELECTRICAL KEY OSCILLATOR)
CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE)
CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - BATTERY AND BODY GROUND)
REPLACE DOOR ELECTRICAL KEY OSCILLATOR
CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)
REPLACE FRONT DOOR OUTSIDE HANDLE
CHECK FRONT DOOR OUTSIDE HANDLE OPERATION
ENTRY AND START SYSTEM (for Entry Function) - Driver Side Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
When the driver side door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock system, 2) driver side door electrical key oscillator, or 3) certification ECU (smart key ECU assembly).
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK POWER DOOR LOCK OPERATION |
When the master switch assembly door control switch is operated, check that the locked doors unlock.
- OK:
- Door locks operate normally.
| | GO TO POWER DOOR LOCK CONTROL SYSTEM ()
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| 2.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH) |
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Main Body / Data List.
Read the Data List according to the display on the intelligent tester.
Main Body| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| D Door Lock Position SW | Driver side door lock position switch signal / ON or OFF | ON: Driver side door unlocked
OFF: Driver side door locked | - |
- OK:
- On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.
| | GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK/UNLOCK Functions do not Operate) ()
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| 3.READ VALUE USING INTELLIGENT TESTER (TOUCH SENSOR) |
Using the intelligent tester, read the Data List.
Entry & Start| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| D-Door Touch Sensor | Driver side door touch sensor / ON or OFF | ON: Touch sensor touched
OFF: Touch sensor not touched | - |
| D-Door Trigger Switch | Driver side door outside handle lock switch / ON or OFF | ON: Entry lock switch pushed
OFF: Entry lock switch not pushed | - |
Result| Result | Proceed to |
| Display changes according to manual operation | A |
| Display does not change according to manual operation | B |
Bring the electrical key transmitter near the driver side door outside handle, and perform a driver side door entry lock and unlock operation check.
- If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.
When the electrical key transmitter is brought near the driver side door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
If the operation check is normal, 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| Result | Proceed to |
| Operation check fails | A |
| Operation check is normal | B |
| | AFFECTED BY WAVE INTERFERENCE |
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| 5.PERFORM KEY DIAGNOSTIC MODE INSPECTION |
Diagnostic mode inspection (driver side door electrical key oscillator).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Driver Side.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
- If the buzzer sounds, it can be determined that the driver seat outside transmitter is operating normally.
- OK:
- Wireless door lock buzzer sounds.
| OK | |
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| REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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| 6.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - DOOR ELECTRICAL KEY OSCILLATOR) |
Disconnect the E29 ECU connector.
Disconnect the z24 or z22 oscillator connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for LHD:
| Tester Connection | Condition | Specified Condition |
| E29-5 (SEL1) - z24-4 (SEL) | Always | Below 1 Ω |
| E29-33 (CLG1) - z24-10 (CLG) | Always | Below 1 Ω |
| E29-34 (CG1B) - z24-5 (CLGB) | Always | Below 1 Ω |
| E29-5 (SEL1) - Body ground | Always | 10 kΩ or higher |
| E29-33 (CLG1) - Body ground | Always | 10 kΩ or higher |
| E29-34 (CG1B) - Body ground | Always | 10 kΩ or higher |
- for RHD:
| Tester Connection | Condition | Specified Condition |
| E29-5 (SEL1) - z22-4 (SEL) | Always | Below 1 Ω |
| E29-33 (CLG1) - z22-10 (CLG) | Always | Below 1 Ω |
| E29-34 (CG1B) - z22-5 (CLGB) | Always | Below 1 Ω |
| E29-5 (SEL1) - Body ground | Always | 10 kΩ or higher |
| E29-33 (CLG1) - Body ground | Always | 10 kΩ or higher |
| E29-34 (CG1B) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 7.CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE) |
Disconnect the z23 or z21 handle connector.
Disconnect the z24 or z22 oscillator connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for LHD:
| Tester Connection | Condition | Specified Condition |
| z23-2 (ANT2) - z24-8 (ANT2) | Always | Below 1 Ω |
| z23-5 (ANT1) - z24-3 (ANT1) | Always | Below 1 Ω |
| z23-2 (ANT2) - Body ground | Always | 10 kΩ or higher |
| z23-5 (ANT1) - Body ground | Always | 10 kΩ or higher |
- for RHD:
| Tester Connection | Condition | Specified Condition |
| z21-2 (ANT2) - z22-8 (ANT2) | Always | Below 1 Ω |
| z21-5 (ANT1) - z22-3 (ANT1) | Always | Below 1 Ω |
| z21-2 (ANT2) - Body ground | Always | 10 kΩ or higher |
| z21-5 (ANT1) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 8.CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - BATTERY AND BODY GROUND) |
Disconnect the z24 or z22 oscillator connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
- for LHD:
| Tester Connection | Condition | Specified Condition |
| z24-1 (B) - z24-7 (GND) | Always | 11 to 14 V |
- for RHD:
| Tester Connection | Condition | Specified Condition |
| z22-1 (B) - z22-7 (GND) | Always | 11 to 14 V |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 9.REPLACE DOOR ELECTRICAL KEY OSCILLATOR |
Replace the door electrical key oscillator ().
| 10.CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) |
Check that the entry function operates normally.
| OK | |
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| END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) |
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| 11.REPLACE FRONT DOOR OUTSIDE HANDLE |
Replace the front door outside handle ().
| 12.CHECK FRONT DOOR OUTSIDE HANDLE OPERATION |
Check that the entry function operates normally.
| | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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| OK | |
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| END (FRONT DOOR OUTSIDE HANDLE IS DEFECTIVE) |
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