Sunroof Switch Inspection
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
- Remove the front map light. (See FRONT MAP LIGHT REMOVAL/INSTALLATION (US) .)
- Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
- Measure the voltage at each terminal.
- If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item(s)" and related wiring harnesses.
- If the system does not work properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the sunroof switch. (See SUNROOF SWITCH REMOVAL/INSTALLATION )
- If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item(s)" and related wiring harnesses.
| Terminal | Signal name | Connected to | Measured condition | Voltage (V) | Inspection item(s) |
|---|---|---|---|---|---|
| 1A | GND | Body ground | Under any condition | Approx. 0 |
|
| 1B | LIN3 | BCM | Terminal used for communication therefore determination based on terminal voltage is not possible. | ||
| 1C | - | - | - | - | - |
| 1D | - | - | - | - | - |
| 1E | SR_CLOSE | Sunroof motor | Sunroof is closed | B+ |
|
| Except above. | 1.0 or less | ||||
| 1F | SR_TILT | Sunroof motor | Sunroof is tilted | B+ |
|
| Except above. | 1.0 or less |
|
|||
| 1G | SR_OPEN | Sunroof motor | Sunroof is opened | B+ |
|
| Except above. | 1.0 or less | ||||
| 1H | BATT_ROOM | F50 15A fuse | Under any condition | B+ |
|