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

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SLIDING ROOF OPERATION)

1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the sliding roof operates normally.

Sliding roof ECU:

Item	Test Details	Diagnostic Note
Sliding Roof	Operate sliding roof SLIDE CLOSE / TILT UP CLOS / UP: Sliding roof SLIDE CLOSE or TILT UP operation occurs OFF: Sliding roof is not operating	-
Sliding Roof	Operate sliding roof SLIDE OPEN/TILT DOWN OPEN/DOWN: Sliding roof SLIDE OPEN or TILT DOWN operation occurs OFF: Sliding roof is not operating	-

NG	Go to step 2

OK
REPLACE SLIDING ROOF ECU

2. INSPECT FUSE (S/ROOF, DC/DC, ECU-B No.1)

1. Remove the S/ROOF fuse from the instrument panel J/B.

2. Remove the DC/DC fuse and ECU-B No.1 fuse from the fusible link block.

3. Measure the resistance of the fuses.

   Standard resistance:

   Below 1 Ω
   

NG	REPLACE FUSE

OK

3. CHECK SLIDING ROOF ECU (POWER SOURCE)

1. Disconnect the M5 sliding roof ECU connector.

2. Check the voltage between the wire harness side connector and the body ground.

   Standard voltage:

   Tester Connection	Specified Condition
   M5-5 (ECUB) - Body ground	10 to 14 V
   M5-1 (B) - Body ground	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4. CHECK SLIDING ROOF ECU (GROUND)

1. Disconnect the M5 sliding roof ECU connector.

2. Check the resistance between the wire harness side connector and the body ground.

   Standard resistance:

   Tester Connection	Specified Condition
   M5-7 (E) - Body ground	Below 1 Ω

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE MAP LIGHT ASSEMBLY