DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SLIDING ROOF OPERATION)
INSPECT MAP LIGHT ASSEMBLY
CHECK WIRE HARNESS (SLIDING ROOF ECU - MAP LIGHT ASSEMBLY)
SLIDING ROOF SYSTEM - Sliding Roof Control Switch Circuit
DESCRIPTION
The sliding roof drive gear sub-assembly (sliding roof ECU) receives slide switch and tilt switch signals and drives its built-in motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SLIDING ROOF OPERATION) |
Select the Active Test, use the intelligent tester to generate a control command, and then check that the sliding roof slides open/close and tilts up/down.
- SLIDE ROOF:
| Item | Test Details | Diagnostic Note |
SLIDE ROOF
(Slide Roof) | Operate sliding roof CLOSE/UP | - |
SLIDE ROOF
(Slide Roof) | Operate sliding roof OPEN/DOWN | - |
- OK:
- Sliding roof operates normally.
| 2.INSPECT MAP LIGHT ASSEMBLY |
Disconnect the R5 connector.
Check the sliding roof switch.
Measure the resistance of the map light assembly.
- Standard resistance:
| Switch Condition | Tester Connection | Resistance |
| 1 | R5-8 (DOWN) - R5-39 (GND) | Below 1 Ω |
| 1 | R5-9 (UP) - R5-39 (GND) | 10 kΩ or higher |
| 1 | R5-10 (CLS) - R5-39 (GND) | 10 kΩ or higher |
| 1 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 2 | R5-8 (DOWN) - R5-39 (GND) | Below 1 Ω |
| 2 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 2 | R5-10 (CLS) - R5-39 (GND) | 10 kΩ or higher |
| 2 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 3 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 3 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 3 | R5-10 (CLS) - R5-39 (GND) | 10 kΩ or higher |
| 3 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 4 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 4 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 4 | R5-10 (CLS) - R5-39 (GND) | 10 kΩ or higher |
| 4 | R5-11 (OPN) - R5-39 (GND) | Below 1 Ω |
| 5 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 5 | R5-9 (UP) - R5-39 (GND) | 10 kΩ or higher |
| 5 | R5-10 (CLS) - R5-39 (GND) | 10 kΩ or higher |
| 5 | R5-11 (OPN) - R5-39 (GND) | Below 1 Ω |
| 6 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 6 | R5-9 (UP) - R5-39 (GND) | 10 kΩ or higher |
| 6 | R5-10 (CLS) - R5-39 (GND) | Below 1 Ω |
| 6 | R5-11 (OPN) - R5-39 (GND) | Below 1 Ω |
| 7 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 7 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 7 | R5-10 (CLS) - R5-39 (GND) | Below 1 Ω |
| 7 | R5-11 (OPN) - R5-39 (GND) | Below 1 Ω |
| 8 | R5-8 (DOWN) - R5-39 (GND) | 10 kΩ or higher |
| 8 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 8 | R5-10 (CLS) - R5-39 (GND) | Below 1 Ω |
| 8 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 9 | R5-8 (DOWN) - R5-39 (GND) | Below 1 Ω |
| 9 | R5-9 (UP) - R5-39 (GND) | Below 1 Ω |
| 9 | R5-10 (CLS) - R5-39 (GND) | Below 1 Ω |
| 9 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 10 | R5-8 (DOWN) - R5-39 (GND) | Below 1 Ω |
| 10 | R5-9 (UP) - R5-39 (GND) | 10 kΩ or higher |
| 10 | R5-10 (CLS) - R5-39 (GND) | Below 1 Ω |
| 10 | R5-11 (OPN) - R5-39 (GND) | 10 kΩ or higher |
| 11 | R5-7 (CHK) - R5-39 (GND) | Below 1 Ω |
| | REPLACE MAP LIGHT ASSEMBLY |
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| 3.CHECK WIRE HARNESS (SLIDING ROOF ECU - MAP LIGHT ASSEMBLY) |
Disconnect the R6 sliding roof ECU and R5 map light connectors.
Check the resistance between the wire harness side connectors.
- Standard resistance:
| Tester Connection | Specified Condition |
| R6-6 (IG) - R5-24 (IG3) | Below 1 Ω |
| R6-6 (IG) - Body ground | 10 kΩ or higher |
| R6-2 (CHK) - R5-7 (CHK) | Below 1 Ω |
| R6-2 (CHK) - Body ground | 10 kΩ or higher |
| R6-8 (CLS) - R5-10 (CLS) | Below 1 Ω |
| R6-8 (CLS) - Body ground | 10 kΩ or higher |
| R6-9 (OPN) - R5-11 (OPN) | Below 1 Ω |
| R6-9 (OPN) - Body ground | 10 kΩ or higher |
| R6-4 (DWN) - R5-8 (DOWN) | Below 1 Ω |
| R6-4 (DWN) - Body ground | 10 kΩ or higher |
| R6-3 (UP) - R5-9 (UP) | Below 1 Ω |
| R6-3 (UP) - Body ground | 10 kΩ or higher |
| R5-39 (GND) - Body ground | Below 1 Ω |
| R6-7 (E) - Body ground | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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LEXUS IS250, IS220d / GSE20 ALE20
