Unlock Warning Switch Circuit

THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: Unlock Warning Switch Circuit
- Unlock Warning Switch Circuit

DESCRIPTION

The key unlock warning switch assembly comes on when the ignition key is inserted into the ignition key cylinder and goes off when the ignition key is removed.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) According to the display on the Techstream, read the Data List.

Main Body (Main Body ECU (Multiplex Network Body ECU))





OK:

When the key is in the ignition key cylinder, "ON" appears on the screen.

NG -- INSPECT UNLOCK WARNING SWITCH ASSEMBLY

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Theft Deterrent System

2. INSPECT UNLOCK WARNING SWITCH ASSEMBLY

(a) Remove the unlock warning switch assembly Removal.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE UNLOCK WARNING SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - UNLOCK WARNING SWITCH - BODY GROUND)

(a) Disconnect the I13 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal