| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000XUQ01IX |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): DESCRIPTION (2008 LX570) | ||
|
Rear Door RH Entry Lock Function does not Operate |
DESCRIPTION
If the passenger side rear door entry lock function does not operate but the entry unlock function operates, the communication line between the vehicle and electrical key transmitter is normal. The part at fault may be an entry lock switch circuit (certification ECU [smart key ECU assembly] → passenger side rear door outside handle [entry lock switch] → passenger side rear door electrical key oscillator).
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) When the master switch assembly door control switch is operated, check that the locked doors unlock.
OK:
Door locks operate normally.
|
|
2. |
READ VALUE USING TECHSTREAM (LOCK SWITCH) |
(a) Using the Techstream, read the Data List.
Smart Access
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Pr-Door Trigger Switch |
Passenger side rear door outside handle lock switch / ON or OFF |
ON: Entry lock switch pushed OFF: Entry lock switch not pushed |
- |
OK:
On Techstream screen, item changes between ON and OFF according to above chart.
|
|
3. |
CHECK HARNESS AND CONNECTOR (REAR DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR) |
|
(a) Disconnect the z26 oscillator connector. |
(b) Disconnect the z25 handle connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
z26-9 (TRG-) - z25-1 (TRG-) |
Always |
Below 1 Ω |
|
z26-9 (TRG-) - Body ground |
Always |
10 kΩ or higher |
|
|
4. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - REAR DOOR OUTSIDE HANDLE) |
|
(a) Disconnect the E30 ECU connector. |
(b) Disconnect the z25 handle connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E30-26 (TSW4) - z25-3 (TRG+) |
Always |
Below 1 Ω |
|
E30-26 (TSW4) - Body ground |
Always |
10 kΩ or higher |
|
|
5. |
INSPECT REAR DOOR OUTSIDE HANDLE RH |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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|
|
6. |
REPLACE DOOR ELECTRICAL KEY OSCILLATOR |
(a) Replace the door electrical key oscillator
.
|
|
7. |
CHECK DOOR ELECTRICAL KEY OSCILLATOR OPERATION |
(a) Check that the entry function operates normally.
OK:
Operates normally.
|
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