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 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)
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 Unlock Function does not Operate
DESCRIPTION
If the driver side door entry unlock function does not operate but the entry lock function operates, the communication line between the vehicle and electrical key transmitter is normal. The part at fault may be a touch sensor circuit (certification ECU (smart key ECU assembly) → driver side door outside handle → driver side door electrical key oscillator).
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 | - |
- OK:
- "ON" (sensor is touched) and "OFF" (sensor is not touched) appears on the screen.
| OK | |
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| REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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| 4.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 |
| E29-22 (SEN1) - z24-6 (SENS) | Always | Below 1 Ω |
| E29-5 (SEL1) - Body ground | Always | 10 kΩ or higher |
| E29-22 (SEN1) - Body ground | Always | 10 kΩ or higher |
- for RHD:
| Tester Connection | Condition | Specified Condition |
| E29-5 (SEL1) - z22-4 (SEL) | Always | Below 1 Ω |
| E29-22 (SEN1) - z22-6 (SENS) | Always | Below 1 Ω |
| E29-5 (SEL1) - Body ground | Always | 10 kΩ or higher |
| E29-22 (SEN1) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 5.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 |
| z23-6 (SGT) - z24-2 (SGT) | Always | Below 1 Ω |
| z23-6 (SGT) - Body ground | Always | 10 kΩ or higher |
- for RHD:
| Tester Connection | Condition | Specified Condition |
| z21-6 (SGT) - z22-2 (SGT) | Always | Below 1 Ω |
| z21-6 (SGT) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 6.REPLACE DOOR ELECTRICAL KEY OSCILLATOR |
Replace the door electrical key oscillator ().
| 7.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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| 8.REPLACE FRONT DOOR OUTSIDE HANDLE |
Replace the front door outside handle ().
| 9.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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