Power Window SUBSWITCH Inspection
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION ).
- Remove the power window subswitch. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION ).
- Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION ).
- Connect the power window subswitch connector.
- 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 properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the power window subswitch.
Terminal voltage table (reference)
| Terminal | Signal name | Connected to | Measurement condition | Voltage (V) | Inspection item (s) |
|---|---|---|---|---|---|
| A | Serial communication | Power window main switch | Because this terminal is for communication, integrity determination by terminal voltage is not possible |
|
|
| C | Power supply (passenger's side) | P.WINDOW2 25 A fuse | Under any condition | B+ |
|
| Power supply (LR/RR) | P.WINDOW3 30 A fuse | Under any condition | B+ |
|
|
| D | Pulse 2 | Power window motor | Door glass operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) ). |
|
| F | Pulse 1 | Power window motor | Door glass operating | Wave pattern (See Inspection Using an Oscilloscope (Reference) ). |
|
| H | Close output | Power window motor | Door glass closing | B+ |
|
| While door glass is closing for approx. 40 s after ignition is switched OFF (LOCK) from ON | B+ | ||||
| Other | 1.0 or less | ||||
| I | Open output | Power window motor | Door glass opening | B+ |
|
| While door glass is opening for approx. 40 s after ignition is switched OFF (LOCK) from ON | B+ | ||||
| Other | 1.0 or less | ||||
| J | Power supply | Power window motor | While the ignition is switched ON (engine on or off) or approx. 40 s after ignition switched OFF (LOCK) from ON | B+ |
|
| Other | 1.0 or less | ||||
| K | GND | Body ground | Under any condition | 1.0 or less |
|
| L | Sensor ground | Power window motor | Under any condition | 1.0 or less |
|
Inspection using an oscilloscope (reference)
- Terminal: D, F(+) ↔ ground (-)
- Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range