CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
Disconnect the S38 sliding roof ECU (sliding roof drive gear assembly) connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Tester Connection | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| S38-1 (IG) - Body ground | L - Body ground | IG power supply | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| S38-8 (B) - Body ground | SB - Body ground | Battery power supply | Always | 11 to 14 V |
| S38-12 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
Reconnect the S38 sliding roof ECU (sliding roof drive gear assembly) connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| S38-5 (CLS) - Body ground | GR - Body ground | Slide roof switch (CLOSE) signal | Slide roof switch (CLOSE) off → on | 11 to 14 V → Below 1 V |
| S38-7 (OPN) - Body ground | BR - Body ground | Slide roof switch (OPEN) signal | Slide roof switch (OPEN) off → on | 11 to 14 V → Below 1 V |
Measure the waveform according to the value(s) in the table below.
| Tester Connection | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| S38-11 (MPX1) - Body ground | LG - Body ground | LIN communication line | Engine switch on (IG) | Pulse generation |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)