Door Unlock Detection Switch Circuit

LIGHTING (INT): LIGHTING SYSTEM: Door Unlock Detection Switch Circuit
- Door Unlock Detection Switch Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

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

(e) Read the display on the Techstream.

Main Body

OK:

Normal conditions listed above are displayed.

Result:

B -- INSPECT FRONT DOOR LOCK ASSEMBLY LH

C -- INSPECT FRONT DOOR LOCK ASSEMBLY RH

D -- INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY LH

E -- INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY RH

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Interior Lighting System

2. INSPECT FRONT DOOR LOCK ASSEMBLY LH

(a) Inspect the front door lock assembly LH Front Door Lock.

OK:

Front door lock assembly LH is normal.

NG -- REPLACE FRONT DOOR LOCK ASSEMBLY LH Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

(a) Disconnect the O8 front door lock assembly LH connector.

(b) Disconnect the L7 main body ECU (multiplex network body ECU) connector.

(c) 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

4. INSPECT FRONT DOOR LOCK ASSEMBLY RH

(a) Inspect the front door lock assembly RH Front Door Lock.

OK:

Front door lock assembly RH is normal.

NG -- REPLACE FRONT DOOR LOCK ASSEMBLY RH Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

(a) Disconnect the N8 front door lock assembly RH connector.

(b) Disconnect the L7 main body ECU (multiplex network body ECU) connector.

(c) 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

6. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY LH

(a) Inspect the rear door lock with motor assembly LH Rear Door Lock.

OK:

Rear door lock with motor assembly LH is normal.

NG -- REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY LH Removal
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

(a) Disconnect the Q1 rear door lock with motor assembly LH connector.

(b) Disconnect the 2D instrument panel junction block assembly connector.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

8. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Remove the instrument panel junction block assembly Removal.

(b) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly Removal.

Text in Illustration

NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Removal

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

9. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY RH

(a) Inspect the rear door lock with motor assembly RH Rear Door Lock.

OK:

Rear door lock with motor assembly RH is normal.

NG -- REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY RH Removal
OK -- Continue to next step.

10. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

(a) Disconnect the P1 rear door lock with motor assembly RH connector.

(b) Disconnect the 2B instrument panel junction block assembly connector.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

11. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Remove the instrument panel junction block assembly Removal.

(b) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly Removal.

Text in Illustration

NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Removal

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