Inspection Procedure
- READ VALUE USING TECHSTREAM
- Connect Techstream to the DLC3.
- Turn the ignition switch ON.
- Turn the tester on.
- Enter the following menus: Body Electrical/Immobilizer/Data List.
- Read the Data List according to the display on the tester.
Immobilizer:
DATA LISTTester Display Measurement Item/Range Normal Condition Diagnostic Note KEY SW Un-lock warning switch signal/ON or OFF ON: Key is in ignition key cylinder
OFF: No key is in ignition key cylinder- OK: "ON" (Key is in ignition key cylinder) appears on the screen.
NG: Go to step 2
OK: REPLACE TRANSPONDER KEY ECU ASSEMBLY
- INSPECT UN-LOCK WARNING SWITCH ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Remove the un-lock warning switch assembly.
- Measure the resistance according to the value(s) in the table below.
Resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Condition D31-1 - D31-2 Pushed Below 1 Ω D31-1 - D31-2 Not pushed 10 kΩ or higher NG: REPLACE UN-LOCK WARNING SWITCH ASSEMBLY
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (UN-LOCK WARNING SWITCH ASSEMBLY - BODY GROUND)
- Disconnect the D31 switch connector.
- Measure the resistance according to the value(s) in the table below.
Resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Condition D31-1 - Body ground Always Below 1 Ω NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UN-LOCK WARNING SWITCH)
- Disconnect the D33 ECU and D31 switch connectors.
- Measure the resistance according to the value(s) in the table below.
Resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Condition D33-3 (KSW)-D31-2 Always Below 1 Ω D31-2 - Body ground Always 10 kΩ or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE TRANSPONDER KEY ECU ASSEMBLY