DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT ENTRY LOCK SWITCH
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ENTRY LOCK SWITCH)
CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY OSCILLATOR - ENTRY LOCK SWITCH)
CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR
ENTRY AND START SYSTEM - Entry Lock Switch Circuit
DESCRIPTION
The entry lock switches (trigger switch) are built into the outside handles of the LH/RH door. The certification ECU detects the conditions of the each lock switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT ENTRY LOCK SWITCH |
Remove the outside handle.
Disconnect the connectors.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
| Tester Connection (Symbols) | Condition | Specified Condition |
| o1-1 (TRG-) - o1-3 (TRG+) | Lock switch not pushed | 10 kΩ or higher |
| Lock switch pushed | Below 1 Ω |
| n1-1 (TRG-) - n1-3 (TRG+) | Lock switch not pushed | 10 kΩ or higher |
| Lock switch pushed | Below 1 Ω |
| | REPLACE OUTSIDE HANDLE ASSEMBLY |
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| 2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ENTRY LOCK SWITCH) |
Disconnect the P33 ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
| Tester Connection (Symbols) | Condition | Specified Condition |
| P33-3 (TSW1) - o1-3 (TRG+) | Always | Below 1 Ω |
| P33-4 (TSW1) - n1-3 (TRG+) | Always | Below 1 Ω |
| P33-3 (TSW1) - Body ground | Always | 10 kΩ or higher |
| P33-4 (TSW1) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 3.CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY OSCILLATOR - ENTRY LOCK SWITCH) |
Disconnect the door oscillator connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
(Symbols) | Condition | Specified condition |
| o2-9 (TRG-) - o1-1 (TRG-) | Always | Below 1 Ω |
| n2-9 (TRG-) - n1-1 (TRG-) | Always | Below 1 Ω |
| o2-9 (TRG-) - Body ground | Always | 10 kΩ or higher |
| n2-9 (TRG-) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 4.CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR |
Replace the electrical key oscillator.
Check that the entry LOCK / UNLOCK function operates normally.
- OK:
- Entry LOCK / UNLOCK function operates normally.
| | PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
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| OK | |
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| END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) |
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LEXUS IS250, IS220d / GSE20 ALE20
