From 08/2009
LIGHTING (INT): LIGHTING SYSTEM: Door Courtesy Switch Circuit
- Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the door courtesy light switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body or Back Door / Data List.
(e) Read the display on the Techstream.
Main Body
Back Door (w/ Power Back Door)
OK:
Normal conditions listed above are displayed.
Result:
D -- INSPECT BACK DOOR LOCK ASSEMBLY
C -- INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
B -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE From 08/2009
2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
(a) Remove the front door courtesy light switch assembly Components.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Components
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - SWITCH)
(a) for Front LH
(1) Disconnect the 2H instrument panel junction block assembly connector.
(2) Disconnect the P3 front door courtesy light switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(b) for Front RH
(1) Disconnect the 2D instrument panel junction block assembly connector.
(2) Disconnect the O4 front door courtesy light switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
(a) for Front LH
(1) Remove the instrument panel junction block assembly.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(b) for Front RH
(1) Remove the instrument panel junction block assembly.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
5. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
(a) Remove the rear door courtesy light switch assembly Components.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY Components
OK -- Continue to next step.
6. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR COURTESY LIGHT SWITCH)
(a) for Rear LH
(1) Disconnect the F12 main body ECU (multiplex network body ECU) connector.
(2) Disconnect the P13 rear door courtesy light switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(b) for Rear RH
(1) Disconnect the F13 main body ECU (multiplex network body ECU) connector.
(2) Disconnect the O14 rear door courtesy light switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
7. INSPECT BACK DOOR LOCK ASSEMBLY
(a) w/o Power Back Door
(1) Remove the back door lock assembly Components.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(b) w/ Power Back Door
(1) Remove the back door lock assembly Components.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE BACK DOOR LOCK ASSEMBLY Components
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - MAIN BODY ECU OR POWER BACK DOOR UNIT)
(a) w/o Power Back Door
(1) Disconnect the F13 main body ECU (multiplex network body ECU) connector.
(2) Disconnect the Y9 back door lock assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(b) w/ Power Back Door
(1) Disconnect the P33 power back door unit assembly connector.
(2) Disconnect the Y10 back door lock assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
Result:
C -- REPAIR OR REPLACE HARNESS OR CONNECTOR
B -- REPLACE POWER BACK DOOR UNIT ASSEMBLY
A -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)