| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002ZS0005X |
| Title: LIGHTING (INT): LIGHTING SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Door Courtesy Switch Circuit |
DESCRIPTION
The main body ECU receives a door open/closed signal from each door courtesy light switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH) |
(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
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
D Door Courtesy SW |
Front door courtesy light switch LH signal / ON or OFF |
ON: Front door courtesy light switch LH ON OFF: Front door courtesy light switch LH OFF |
- |
|
P Door Courtesy SW |
Front door courtesy light switch RH signal / ON or OFF |
ON: Front door courtesy light switch RH ON OFF: Front door courtesy light switch RH OFF |
- |
|
RL Door Courtesy SW |
Rear door courtesy light switch LH signal / ON or OFF |
ON: Rear door courtesy light switch LH ON OFF: Rear door courtesy light switch LH OFF |
- |
|
RR Door Courtesy SW |
Rear door courtesy light switch RH signal / ON or OFF |
ON: Rear door courtesy light switch RH ON OFF: Rear door courtesy light switch RH OFF |
- |
Result
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (Front door courtesy light switch LH does not operate) |
B |
|
NG (Front door courtesy light switch RH does not operate) |
C |
|
NG (Rear door courtesy light switch LH does not operate) |
D |
|
NG (Rear door courtesy light switch RH does not operate) |
E |
|
|
3. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH |
(a) Remove the front door courtesy light switch LH
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
Pushed |
10 kΩ or higher |
(c) Reinstall the front door courtesy light switch LH.
|
|
5. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU) |
(a) Disconnect the O8 front door courtesy light switch LH connector.
(b) Disconnect the H4 main body ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O8-1 - H4-24 (DCTY) |
Always |
Below 1 Ω |
|
O8-1 - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the main body ECU connector.
(e) Reconnect the front door courtesy light switch LH connector.
|
|
7. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH |
(a) Remove the front door courtesy light switch RH
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
Pushed |
10 kΩ or higher |
(c) Reinstall the front door courtesy light switch RH.
|
|
9. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU) |
(a) Disconnect the P6 front door courtesy light switch RH connector.
(b) Disconnect the H3 main body ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P6-1 - H3-21 (PCTY) |
Always |
Below 1 Ω |
|
P6-1 - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the main body ECU connector.
(e) Reconnect the front door courtesy light switch RH connector.
|
|
10. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH LH |
(a) Remove the rear door courtesy light switch LH
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
Pushed |
10 kΩ or higher |
(c) Reinstall the rear door courtesy light switch LH.
|
|
12. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU) |
(a) Disconnect the O7 rear door courtesy light switch LH connector.
(b) Disconnect the DC main body ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O7-1 - DC-2 (LCTY) |
Always |
Below 1 Ω |
|
O7-1 - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the main body ECU connector.
(e) Reconnect the rear door courtesy light switch LH connector.
|
|
13. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH RH |
(a) Remove the rear door courtesy light switch RH
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
Pushed |
10 kΩ or higher |
(c) Reinstall the rear door courtesy light switch RH.
|
|
15. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU) |
(a) Disconnect the P7 rear door courtesy light switch RH connector.
(b) Disconnect the H3 main body ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P7-1 - H3-25 (RRCY) |
Always |
Below 1 Ω |
|
P7-1 - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the main body ECU connector.
(e) Reconnect the rear door courtesy light switch RH connector.
|
|
|