Theft Deterrent Keyless Entry. Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200

Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

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 - REAR DOOR OUTSIDE HANDLE)

REPLACE DOOR ELECTRICAL KEY OSCILLATOR

CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

REPLACE REAR DOOR OUTSIDE HANDLE

CHECK REAR DOOR OUTSIDE HANDLE (OPERATION)

ENTRY AND START SYSTEM (for Entry Function) - Rear Door LH Entry Unlock Function does not Operate

DESCRIPTION

If the rear door LH 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) → rear door outside handle LH → rear door electrical key oscillator LH).

HINT:

For vehicles with entry function for rear doors.

WIRING DIAGRAM

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Entry Function) Rear Door Lh Entry Unlock Function Does Not Operate

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 (Click here)

OK

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.

for LHD

Main Body
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
DR Door Lock Position SW	Driver side rear door lock position switch signal / ON or OFF	ON: Driver side rear door unlocked OFF: Driver side rear door locked	-

OK:: On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.

for RHD

Main Body
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
PR Door Lock Position SW	Passenger side rear door lock position switch signal / ON or OFF	ON: Passenger side rear door unlocked OFF: Passenger side rear 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 Rear Door LH LOCK/UNLOCK Functions do not Operate) (Click here)

OK

3.READ VALUE USING INTELLIGENT TESTER (TOUCH SENSOR)

Using the intelligent tester, read the Data List.

for LHD

Entry & Start
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Dr-Door Touch Sensor
Driver side rear 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.

for RHD

Entry & Start
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Pr-Door Touch Sensor	Passenger side rear 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.

Go to step 4

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

4.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - DOOR ELECTRICAL KEY OSCILLATOR)

Disconnect the E30 ECU connector.

Disconnect the z28 oscillator connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

for LHD:

Tester Connection	Condition	Specified Condition
E30-1 (SEL3) - z28-4 (SEL)	Always	Below 1 Ω
E30-28 (SEN3) - z28-6 (SENS)	Always	Below 1 Ω
E30-1 (SEL3) - Body ground	Always	10 kΩ or higher
E30-28 (SEN3) - Body ground	Always	10 kΩ or higher

for RHD:

Tester Connection	Condition	Specified Condition
E30-2 (SEL4) - z28-4 (SEL)	Always	Below 1 Ω
E30-27 (SEN4) - z28-6 (SENS)	Always	Below 1 Ω
E30-2 (SEL4) - Body ground	Always	10 kΩ or higher
E30-27 (SEN4) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE)

Disconnect the z27 handle connector.

Disconnect the z28 oscillator connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
z27-6 (SGT) - z28-2 (SGT)
Always
Below 1 Ω
z27-6 (SGT) - Body ground
Always
10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.REPLACE DOOR ELECTRICAL KEY OSCILLATOR

Replace the door electrical key oscillator (Click here).

NEXT

7.CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

Check that the entry function operates normally.
OK:
Operates normally.

Go to step 8

END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

8.REPLACE REAR DOOR OUTSIDE HANDLE

Replace the rear door outside handle (Click here).

NEXT

9.CHECK REAR DOOR OUTSIDE HANDLE (OPERATION)

Check that the entry function operates normally.
OK:
Operates normally.

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

END (REAR DOOR OUTSIDE HANDLE IS DEFECTIVE)