Self-Diagnostic System: Pre-Check
NOTE:
P/W refers to power window.
- Check the power window operation mode. See Fig 1.
- Check the power window fail-safe function. When an abnormality is detected in the limit switch and the pulse sensor for operating the jam protection function (DTCs: B1231, B1232, B1233, B1234), the following power windows will be prohibited for fail-safe. See Fig 2. In case of the normal limit switch, prohibition (fail-safe function) will be cancelled by fully opening the door glass from fully closed by manual operation then AUTO operation will be possible.
- Retrieve DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES .
- Clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES .
- According to the DATA LIST displayed on the OBD II scan tool or hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Connect the OBD II scan tool or hand-held tester to the DLC3. Turn the ignition switch ON. According to the display on the tester, read the DATA LIST:
- Body ECU (data monitor of switch signal by DTC check). DTC B1221 and B1223 are the codes to inform of each switch condition and will be output when the switch is ON. These codes are displayed when operating the switch. If the codes are displayed even when not operating the switch, there may be trouble in the switch circuit. See INSPECTING BODY ECU DATA LIST table.INSPECTING BODY ECU DATA LIST
Item Measurement Item/Range (DTC) Normal Condition Power Window Switch Circuit On Driver Door P/W Master Switch Signal (Except Window Lock Switch)/B1221 B1221: Operating (ON) Either Switch Of The Master Switch, No Output Of B1221: No Operation Of Any Switch (OFF) Power Window Switch Circuit On Passenger Door P/W Master Switch Signal (Except Window Lock Switch)/B1223 B1223: Passenger's Door P/W Switch Or Manual Door Lock Switch Is On, No Operation Of Any Switch (OFF) - Driver Door ECU. See INSPECTING DRIVER'S DOOR ECU DATA LIST table.INSPECTING DRIVER'S DOOR ECU DATA LIST
Item Measurement Item/Display (Range) Normal Condition D P/W AUTO Switch, P P/W AUTO Switch, RR P/W AUTO Switch & RL P/W AUTO Switch P/W Auto Switch Signal/ ON Or OFF ON: P/W Auto UP/DOWN Switch Is ON, OFF: P/W Auto UP/DOWN Switch Is OFF LIMIT Switch Jam Protection Limit Switch/ON Or OFF ON: Window Is Almost Fully Open, OFF: Window Is Open (1) (1) With the jam protection limit switch ON, the function of the jam protection will stop. If the switch does not come ON at the position where the windows are almost fully open, the windows will not fully close as the jam protection operates at the upper portion during the automatic UP performance. - Passenger Door ECU. See INSPECTING PASSENGER'S DOOR ECU DATA LIST table.INSPECTING PASSENGER'S DOOR ECU DATA LIST
Item Measurement Item/Display (Range) Normal Condition P P/W AUTO Switch P/W Auto Switch Signal/ ON Or OFF ON: P/W Auto UP/DOWN Switch Is ON, OFF: P/W Auto UP/DOWN Switch Is OFF LIMIT Switch Jam Protection Limit Switch/ON Or OFF ON: Window Is Almost Fully Open, OFF: Window Is Open (1) (1) With the jam protection limit switch ON, the function of the jam protection will stop. If the switch does not come ON at the position where the windows are almost fully open, the windows will not fully close as the jam protection operates at the upper portion during the automatic UP performance. - Driver's Door/Passenger's Door ECU. The next data monitor is possible when the power window operated with Manual UP during the Active Test. See INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU DATA LIST table.INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU DATA LIST
Item Measurement Item/Display (Range) Normal Condition GRASS POS-1/4 To Monitor The Detection Of Something Caught In The P/W / OK Or CAUTION (Displayed During Active Test) OK: Nothing Caught In The Range Between Fully Open & 1/4 Open (1) GRASS POS-2/4 To Monitor The Detection Of Something Caught In The P/W / OK Or CAUTION (Displayed During Active Test) OK: Nothing Caught In The Range Between Fully 1/4 Open & 2/4 Open (1) GRASS POS-3/4 To Monitor The Detection Of Something Caught In The P/W / OK Or CAUTION (Displayed During Active Test) OK: Nothing Caught In The Range Between Fully 2/4 Open & 3/4 Open (1) GRASS POS-OPEN To Monitor The Detection Of Something Caught In The P/W / OK Or CAUTION (Displayed During Active Test) OK: Nothing Caught In The Range Between Fully 3/4 Open & Open (1) (1) In case that the CAUTION is displayed even without applying resistance in each range, there must be something caught somewhere in that range.
- Body ECU (data monitor of switch signal by DTC check). DTC B1221 and B1223 are the codes to inform of each switch condition and will be output when the switch is ON. These codes are displayed when operating the switch. If the codes are displayed even when not operating the switch, there may be trouble in the switch circuit. See INSPECTING BODY ECU DATA LIST table.
- Perform the ACTIVE TEST. Connect the OBD II scan tool or the hand-held tester to the DLC3. Turn the ignition switch ON. According to the display on the tester, perform the ACTIVE TEST:
- Driver's Door/Passenger's Door ECU. See INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU ACTIVE TEST table.INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU ACTIVE TEST
Item Test Details Diagnostic Note P/W UP/DOWN Drive The P/W Motor UP/DOWN During This ACTIVE TEST, Jam Protection/Something Caught Detection Can Be Monitored (1) (1) For details, refer to INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU DATA LIST table. - Rear Left Hand Door/Rear right hand Door Body ECU. See INSPECTING REAR LH DOOR/REAR RH DOOR ECU ACTIVE TEST table.INSPECTING REAR LH DOOR/REAR RH DOOR ECU ACTIVE TEST
Item Test Details RL P/W Drive The RL P/W Motor UP/DOWN RR P/W Drive The RR P/W Motor UP/DOWN
- Driver's Door/Passenger's Door ECU. See INSPECTING DRIVER'S DOOR/PASSENGER'S DOOR ECU ACTIVE TEST table.