Sliding Roof ECU Power Source Circuit

SLIDING ROOF: SLIDING ROOF SYSTEM: Sliding Roof ECU Power Source Circuit

Sliding Roof ECU Power Source Circuit

DESCRIPTION

The sliding roof ECU receives signals from the sliding roof switch and activates the sliding roof. However, fuse, wire harness or sliding roof ECU malfunctions may cause the sliding roof system to stop operating.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (SLIDING ROOF OPERATION)
(a) Select the Active Test, use the Techstream to generate a control command, and then check that the sliding roof operates normally.
Slide Roof:






OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SLIDING ROOF ECU)
NG -- Continue to next step.
2. INSPECT FUSE (S/ROOF, ECU-IG LH, AM2)
(a) Remove the S/ROOF and ECU-IG LH fuses from the cowl side junction block LH.
(b) Remove the AM2 fuse from the cowl side junction block RH.
(c) Measure the resistance of the fuses.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
3. INSPECT MAIN BODY ECU LH (LH-IG2)





(a) Disconnect the PD and PM junction block connectors.
(b) Measure the resistance of the connectors.
Standard resistance:






NG -- REPLACE MAIN BODY ECU LH
OK -- Continue to next step.
4. CHECK WIRE HARNESS (SLIDING ROOF DRIVE GEAR - BATTERY AND BODY GROUND)





(a) Disconnect the W7 drive gear connector.
(b) Measure the resistance and voltage of the wire harness side connector.
Standard resistance:






Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
5. CHECK WIRE HARNESS (SLIDING ROOF DRIVE GEAR - BODY GROUND)





(a) Disconnect the W7 drive gear connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:






OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SLIDING ROOF ECU)
NG -- Continue to next step.
6. CHECK WIRE HARNESS (PERSONAL LIGHT ASSEMBLY - BODY GROUND)





(a) Disconnect the W6 personal light connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
7. CHECK WIRE HARNESS (PERSONAL LIGHT ASSEMBLY - SLIDING ROOF DRIVE GEAR)





(a) Disconnect the W7 drive gear connector.
(b) Disconnect the W6 personal light connector.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE PERSONAL LIGHT ASSEMBLY