SLIDING ROOF SYSTEM Sliding Roof ECU Power Source Circuit

DESCRIPTION

If the sliding function and tilt function do not operate, there may be a malfunction in the sliding roof ECU power source circuit.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (S/ROOF, D-IG1-5)

   
   

   1. Remove the S/ROOF and D-IG1-5 fuses from the main body ECU (driver side junction block).

   2. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition S/ROOF fuse Always Below 1 Ω D-IG1-5 fuse Always Below 1 Ω

   
   

   NG

   REPLACE FUSE

   OK

2. CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - BODY GROUND)

   
   

   1. 

      Disconnect the X5 drive gear connector.

   2. Measure the resistance and voltage according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition X5-2 (E) - Body ground Always Below 1 Ω
      Standard voltage
      Tester Connection Switch Condition Specified Condition X5-1 (B) - Body ground Always 11 to 14 V X5-5 (IG) - Body ground Power switch OFF Below 1 V X5-5 (IG) - Body ground Power switch ON (IG) 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) Click here