Rear Door Courtesy Switch Circuit
LIGHTING (INT): LIGHTING SYSTEM: Rear Door Courtesy Switch Circuit
- Rear Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the rear door courtesy light switch using this circuit.
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 REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Interior Lighting System
2. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH)
(a) Remove the rear door courtesy light switch assembly Removal.
(b) Inspect the rear door courtesy light switch assembly Rear Door Courtesy Switch.
OK:
Rear door courtesy light switch assembly is normal.
Result:
B -- CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
C -- REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY Removal
A -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
(a) Disconnect the I13 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the N15 rear door courtesy light switch assembly LH 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. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
(a) Disconnect the I13 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the O16 rear door courtesy light switch assembly RH 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