Power Window Control System (Diagnostics - Introduction): Diagnosis Toyota Corolla XI

PROBLEM SYMPTOMS TABLE [08/2013 - ]

HINT

1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

POWER WINDOW CONTROL SYSTEM

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Scheme 7

1. POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Disconnect the H5 power window regulator master switch assembly connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition H5-1 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms H5-6 (B) - H5-1 (E) V - W-B Power supply Ignition switch ON 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the H5 power window regulator master switch assembly connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition H5-8 (U) - H5-1 (E) W - W-B Power window motor up output Ignition switch ON, driver door power window regulator switch off 11 to 14 V Ignition switch ON, driver door power window regulator switch up (Manual operation) Below 1 V H5-4 (A) - H5-1 (E) SB - W-B Power window motor auto up output Ignition switch ON, driver door power window fully open 11 to 14 V Ignition switch ON, driver door power window regulator switch up (Auto up position) Below 1 V Ignition switch ON, driver door power window fully closed 11 to 14 V Power window motor auto down output Ignition switch ON, driver door power window fully closed 11 to 14 V Ignition switch ON, driver door power window regulator switch down (Auto down position) Below 1 V Ignition switch ON, driver door power window fully open 11 to 14 V H5-5 (D) - H5-1 (E) B - W-B Power window motor down output Ignition switch ON, driver door power window regulator switch off 11 to 14 V Ignition switch ON, driver door power window regulator switch down (Manual operation) Below 1 V H5-16 (U) - H5-1 (E) G - W-B Power window motor up output Ignition switch ON, front passenger door power window regulator switch off Below 1 V Ignition switch ON, front passenger door power window regulator switch up (Manual operation) 11 to 14 V H5-15 (D) - H5-1 (E) W - W-B Power window motor down output Ignition switch ON, front passenger door power window regulator switch off Below 1 V Ignition switch ON, front passenger door power window regulator switch down (Manual operation) 11 to 14 V H5-12 (U) - H5-1 (E) R - W-B Power window motor up output Ignition switch ON, rear LH door power window regulator switch off Below 1 V Ignition switch ON, rear LH door power window regulator switch up (Manual operation) 11 to 14 V H5-13 (D) - H5-1 (E) L - W-B Power window motor down output Ignition switch ON, rear LH door power window regulator switch off Below 1 V Ignition switch ON, rear LH door power window regulator switch down (Manual operation) 11 to 14 V H5-10 (U) - H5-1 (E) B - W-B Power window motor up output Ignition switch ON, rear RH door power window regulator switch off Below 1 V Ignition switch ON, rear RH door power window regulator switch up (Manual operation) 11 to 14 V H5-18 (D) - H5-1 (E) Y - W-B Power window motor down output Ignition switch ON, rear RH door power window regulator switch off Below 1 V Ignition switch ON, rear RH door power window regulator switch down (Manual operation) 11 to 14 V If the result is not as specified, the power window regulator master switch assembly may be malfunctioning.
2. CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY Disconnect the G4 power window regulator switch assembly connector. Measure the voltage according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition G4-3 (B) - Body ground Y - Body ground Power supply Ignition switch ON 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the G4 power window regulator switch assembly connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition G4-4 (U) - Body ground R - Body ground Power window motor up output Ignition switch ON, power window regulator switch assembly off Below 1 V Ignition switch ON, power window regulator switch assembly up (Manual operation) 11 to 14 V G4-1 (D) - Body ground B - Body ground Power window motor down output Ignition switch ON, power window regulator switch assembly off Below 1 V Ignition switch ON, power window regulator switch assembly down (Manual operation) 11 to 14 V If the result is not as specified, the power window regulator switch assembly may be malfunctioning.
3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door) Disconnect the K1 rear power window regulator switch assembly (for LH door) connector. Measure the voltage according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition K1-3 (B) - Body ground P - Body ground Power supply Ignition switch ON 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the K1 rear power window regulator switch assembly (for LH door) connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition K1-4 (U) - Body ground G - Body ground Power window motor up output Ignition switch ON, rear power window regulator switch assembly (for LH door) off Below 1 V Ignition switch ON, rear power window regulator switch assembly (for LH door) up (Manual operation) 11 to 14 V K1-1 (D) - Body ground Y - Body ground Power window motor down output Ignition switch ON, rear power window regulator switch assembly (for LH door) off Below 1 V Ignition switch ON, rear power window regulator switch assembly (for LH door) down (Manual operation) 11 to 14 V If the result is not as specified, the rear power window regulator switch assembly (for LH door) may be malfunctioning.
4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Door) Disconnect the J1 rear power window regulator switch assembly (for RH door) connector. Measure the voltage according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition J1-3 (B) - Body ground P - Body ground Power supply Ignition switch ON 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the J1 rear power window regulator switch assembly (for RH door) connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition J1-4 (U) - Body ground G - Body ground Power window motor up output Ignition switch ON, rear power window regulator switch assembly (for RH door) off Below 1 V Ignition switch ON, rear power window regulator switch assembly (for RH door) up (Manual operation) 11 to 14 V J1-1 (D) - Body ground Y - Body ground Power window motor down output Ignition switch ON, rear power window regulator switch assembly (for RH door) off Below 1 V Ignition switch ON, rear power window regulator switch assembly (for RH door) down (Manual operation) 11 to 14 V If the result is not as specified, the rear power window regulator switch assembly (for RH door) may be malfunctioning.
5. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) Disconnect the H9 power window regulator motor assembly (for driver door) connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition H9-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms H9-2 (B) - Body ground GR - Body ground Power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the H9 power window regulator motor assembly (for driver door) connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto up input Ignition switch ON, driver door power window fully open 11 to 14 V H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto up input Ignition switch ON, driver door power window moving, power window regulator master switch assembly (driver door power window regulator switch) fully pulled up (Auto operation) Below 1 V H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto up input Ignition switch ON, driver door power window fully closed 11 to 14 V H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto down input Ignition switch ON, driver door power window fully closed 11 to 14 V H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto down input Ignition switch ON, driver door power window moving, power window regulator master switch assembly (driver door power window regulator switch) fully pushed down (Auto operation) Below 1 V H9-4 (AUTO) - H9-1 (GND) SB - W-B Power window motor auto down input Ignition switch ON, driver door power window fully open 11 to 14 V H9-5 (LED) - H9-1 (GND) LG - W-B LED illumination signal Ignition switch ON 11 to 14 V H9-5 (LED) - H9-1 (GND) LG - W-B LED illumination signal Ignition switch off Below 1 V H9-7 (DOWN) - H9-1 (GND) B - W-B Power window motor down input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) not pushed or pulled 11 to 14 V H9-7 (DOWN) - H9-1 (GND) B - W-B Power window motor down input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) pushed halfway down (Manual operation) Below 1 V H9-7 (DOWN) - H9-1 (GND) B - W-B Power window motor down input Ignition switch ON, driver door power window fully closed 11 to 14 V H9-7 (DOWN) - H9-1 (GND) B - W-B Power window motor down input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) fully pushed down (Auto operation) Below 1 V H9-7 (DOWN) - H9-1 (GND) B - W-B Power window motor down input Ignition switch ON, driver door power window fully open 11 to 14 V H9-10 (UP) - H9-1 (GND) W - W-B Power window motor up input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) not pushed or pulled 11 to 14 V H9-10 (UP) - H9-1 (GND) W - W-B Power window motor up input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) pulled halfway up (Manual operation) Below 1 V H9-10 (UP) - H9-1 (GND) W - W-B Power window motor up input Ignition switch ON, driver door power window fully open 11 to 14 V H9-10 (UP) - H9-1 (GND) W - W-B Power window motor up input Ignition switch ON, power window regulator master switch assembly (driver door power window regulator switch) fully pulled up (Auto operation) Below 1 V H9-10 (UP) - H9-1 (GND) W - W-B Power window motor up input Ignition switch ON, driver door power window fully closed 11 to 14 V If the result is not as specified, the power window regulator motor assembly (for driver door) may be malfunctioning.
6. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Disconnect the MB main body ECU (multiplex network body ECU) connector. *A Main Body ECU (Multiplex Network Body ECU) with 1 Connector - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 1 Connector - - *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 2 Connectors - - Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connectors disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition MB-11 (GND1) - Body ground - Ground Always Below 1 ohms MB-30 (BECU) - Body ground - Battery power supply Always 11 to 14 V MB-29 (ACC) - Body ground - ACC power supply Ignition switch ACC 11 to 14 V MB-29 (ACC) - Body ground - ACC power supply Ignition switch off Below 1 V MB-32 (IG) - Body ground - Ignition switch power supply Ignition switch ON 11 to 14 V MB-32 (IG) - Body ground - Ignition switch power supply Ignition switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the MB main body ECU (multiplex network body ECU) connector. Measure the voltage and check for pulses according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition E31-2 (KOFF) - Body ground G - Body ground Power window relay operation signal Ignition switch ON 11 to 14 V E31-2 (KOFF) - Body ground G - Body ground Power window relay operation signal Approximately 43 seconds after ignition switch turned off Below 1 V 3E-34 (FLCY) - Body ground W - Body ground Front door courtesy switch LH input Front door LH open Below 1 V 3E-34 (FLCY) - Body ground W - Body ground Front door courtesy switch LH input Front door LH closed Pulse generation E31-19 (FRCY) - Body ground V - Body ground Front door courtesy switch RH input Front door RH open Below 1 V E31-19 (FRCY) - Body ground V - Body ground Front door courtesy switch RH input Front door RH closed Pulse generation If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may be malfunctioning.

DIAGNOSIS SYSTEM [08/2013 - ]

1. DESCRIPTION Power window control system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION [08/2013 - ]»(ref-635429-S24386271762014070300000)
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.

DTC CHECK / CLEAR [08/2013 - ]

1. CHECK DTC Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / D-Door Motor / Trouble Codes. Body Electrical > D-Door Motor > Trouble Codes Check the details of the DTC(s). Refer to «DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]»(ref-635456-S00860163792014070300000)
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / D-Door Motor / Trouble Codes. Body Electrical > D-Door Motor > Clear DTCs Clear the DTCs.

DATA LIST / ACTIVE TEST [08/2013 - ]

1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / D-Door Motor or Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > D-Door Motor > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note D Door P/W Auto SW Driver door power window auto switch signal OFF or ON OFF: Driver door power window auto switch not being operated ON: Driver door power window auto switch being operated - D Door P/W Up SW Driver door power window manual up switch signal OFF or ON OFF: Driver door power window manual up switch not being operated ON: Driver door power window manual up switch being operated - D Door P/W Down SW Driver door power window manual down switch signal OFF or ON OFF: Driver door power window manual down switch not being operated ON: Driver door power window manual down switch being operated - Glass Position (Close-1/4) Margin for jam protection triggering force of window glass within range of fully closed to 1/4 open window glass position OK or Caution OK: Normal manual up operation Caution: Jam detected in the specified range Caution is displayed only while the power window ECU built into the power window regulator motor assembly detects a jam. Glass Position (1/4-2/4) Margin for jam protection triggering force of window glass within range of 1/4 to 1/2 open window glass position OK or Caution OK: Normal manual up operation Caution: Jam detected in the specified range Caution is displayed only while the power window ECU built into the power window regulator motor assembly detects a jam. Glass Position (2/4-3/4) Margin for jam protection triggering force of window glass within range of 1/2 to 3/4 open window glass position OK or Caution OK: Normal manual up operation Caution: Jam detected in the specified range Caution is displayed only while the power window ECU built into the power window regulator motor assembly detects a jam. Glass Position (3/4-Open) Margin for jam protection triggering force of window glass within range of 3/4 to fully open window glass position OK or Caution OK: Normal manual up operation Caution: Jam detected in the specified range Caution is displayed only while the power window ECU built into the power window regulator motor assembly detects a jam. Number of Trouble Codes Number of trouble codes Min.: 0 or Max.: 255 Number of DTCs is displayed - Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note IG SW Ignition switch status OFF or ON OFF: Ignition switch off ON: Ignition switch ON "OFF" is displayed even though the ignition switch is turned to ACC. FR Door Courtesy SW Front door courtesy light switch RH OFF or ON OFF: Front door RH closed ON: Front door RH open - FL Door Courtesy SW Front door courtesy light switch LH OFF or ON OFF: Front door LH closed ON: Front door LH open - Communication D-Door Motor Connection status between power window regulator motor assembly (for driver door) and main body ECU (multiplex network body ECU) OK or STOP OK: Normal communication STOP: Communication stopped
2. ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / D-Door Motor or Main Body / Active Test. According to the display on the Techstream, perform the Active Test. WARNING: Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate. Body Electrical > D-Door Motor > Active Test Tester Display Measurement Item Control Range Diagnostic Note Power Window Power window OFF / DOWN / UP - Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note IG OFF P/W Control Permission Output Power window OFF / ON Perform this Active Test with the ignition switch off

DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]

POWER WINDOW CONTROL SYSTEM