Lighting System Back Door Courtesy Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH)
INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY)
INSPECT BACK WINDOW LOCK ASSEMBLY (GLASS HATCH COURTESY LIGHT SWITCH)
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK WINDOW LOCK ASSEMBLY AND BODY GROUND)
LIGHTING SYSTEM - Back 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
1.READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH) |
Using the intelligent tester, read the Data List (LandCruiser RM000000PKV0J5X.html).
Main BodyTester Display
| Measurement Item/Range
| Normal Condition
| Diagnostic Note
|
Back Door Courtesy SW
| Back door courtesy switch signal / ON or OFF
| ON: Back door open OFF: Back door closed
| -
|
Glass Hatch Courtesy Switch*
| Glass hatch courtesy switch signal / ON or OFF
| ON: Glass hatch open OFF: Glass hatch closed
| -
|
- *: w/ Glass Hatch Opener System
- OK:
- The display is as specified in the normal condition column.
ResultResult
| Proceed to
|
OK
| A
|
NG (Back door courtesy light switch does not operate)
| B
|
NG (Glass hatch courtesy light switch does not operate)
| C
|
2.INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY |
Remove the back door courtesy light switch (LandCruiser RM000003YNI01FX.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Switch Condition
| Specified Condition
|
1 - Switch body
| Pin not pushed
| Below 1 Ω
|
Pin pushed
| 10 kΩ or higher
|
3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY) |
Disconnect the G64 main body ECU connector.
Disconnect the R9 back door courtesy light switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
G64-19 (BCTY) - R9-1
| Always
| Below 1 Ω
|
G64-19 (BCTY) - Body ground
| Always
| 10 kΩ or higher
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4.INSPECT BACK WINDOW LOCK ASSEMBLY (GLASS HATCH COURTESY LIGHT SWITCH) |
Remove the back window lock (LandCruiser RM0000045AR00EX.html).
Text in Illustration
| Open
| -
| -
|
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
1 (-) - 2 (+)
| Open
| Below 1 Ω
|
Closed
| 10 kΩ or higher
|
5.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK WINDOW LOCK ASSEMBLY AND BODY GROUND) |
Disconnect the G64 main body ECU connector.
Disconnect the X4 back window lock connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
G64-1 (GCTY) - X4-2 (+)
| Always
| Below 1 Ω
|
G64-1 (GCTY) - Body ground
| Always
| 10 kΩ or higher
|
X4-1 (-) - Body ground
| Always
| Below 1 Ω
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|