Sunroof Motor 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, inspect the parts under Inspection item(s) and related wiring harnesses.
- If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the sunroof motor. (See SUNROOF MOTOR REMOVAL/INSTALLATION .)
Terminal Voltage Table (Reference)
- If the voltage is not as specified in the terminal voltage table, inspect the parts under Inspection item(s) and related wiring harnesses.
| Terminal | Signal | Connected to | Test condition | Voltage (V) | Inspection item |
|---|---|---|---|---|---|
| A | Slide open | Sunroof switch | Sunroof is opening | B+ |
|
| Other | 1.0 or less | ||||
| B | Slide close/tilt down | Sunroof switch | Sunroof is closing/tilting down | B+ |
|
| Other | 1.0 or less | ||||
| C | Tilt up | Sunroof switch | Sunroof is tilting up | B+ |
|
| Other | 1.0 or less | ||||
| E | IG1 | F47 15A fuse | Switch the ignition ON (engine on or off) | B+ |
|
| Other | 1.0 or less | ||||
| F | Car speed signal | Instrument cluster | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible |
|
|
| I | GND | GND | Under any condition | Approx. 0 |
|
| J | Power supply | F52 10A fuse | Under any condition | B+ |
|