Power Window Control System (Diagnostics): Diagnosis Scion xD I

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the power window control system.
2. *: Use a Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. INSPECT BATTERY VOLTAGE Standard voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding. NEXT: Go to next step
3. PROBLEM SYMPTOMS TABLE RESULT Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B --> Go to step 5 A: Go to next step
4. OVERALL ANALYSIS AND TROUBLESHOOTING* Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-388815-S36275224742011031100000) Operation check. Refer to «OPERATION CHECK»(ref-388815-S15706915102011031100000) DATA LIST / ACTIVE TEST. Refer to «DATA LIST / ACTIVE TEST»(ref-388815-S32948866742011031100000) NEXT: Go to next step
5. REPAIR OR REPLACE NEXT: Go to next step
6. CONFIRMATION TEST NEXT --> END

Scheme 17

1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH) Check that the passenger side power window and rear windows cannot be operated when the window lock switch of the power window regulator master switch is pressed. OK Passenger side power window and rear window operation is disabled. Check that the passenger side power window and rear windows can be operated when the window lock switch is pressed again. OK Passenger side power window and rear windows can be operated.
2. CHECK MANUAL UP/DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled up UP (Closes) Pushed halfway down DOWN (Opens) Check that the passenger side power window operates as follows: OK Condition Regulator Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled up UP (Closes) Pushed down DOWN (Opens) Check that the rear LH power window operates as follows: OK Condition Regulator Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Rear LH Pulled up UP (Closes) Pushed down DOWN (Opens) Check that the rear RH power window operates as follows: OK Condition Regulator Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Rear RH Pulled up UP (Closes) Pushed down DOWN (Opens)
3. CHECK AUTO DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Fully pushed down AUTO DOWN (Fully opens)
4. CHECK REMOTE MANUAL UP/DOWN FUNCTION Check that the passenger side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled up UP (Closes) Pushed down DOWN (Opens) Check that the rear LH power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Rear LH Pulled up UP (Closes) Pushed down DOWN (Opens) Check that the rear RH power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Rear RH Pulled up UP (Closes) Pushed down DOWN (Opens)
5. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF Check that all the power windows can be operated with the power window regulator master switch after the ignition switch has been turned OFF. Check that the key-off operation function does not operate after the driver, passenger or rear side door is closed and opened. Check that the driver door power window cannot be operated after more than approximately 43 seconds have elapsed since the ignition switch was turned OFF.
6. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF (DRIVER DOOR POWER WINDOW) HINT: PTC operation is a function that prevents overloading of the power window regulator by stopping the motor. PTC operation activates when the power window regulator switch is operated for a predetermined amount of time. Pull up and hold the power window regulator switch for more than 90 seconds. Then release the switch. Check that pressing the switch does not move the window. Wait until 60 seconds have passed since the switch was released in the first step. Check that pressing the switch results in normal window movement.

PROBLEM SYMPTOMS TABLE

HINT

1. Use the table below to help determine the cause of the problem symptom. 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 the system before inspecting the suspected areas below.

POWER WINDOW CONTROL SYSTEM

Scheme 18

Scheme 19

Scheme 20

Scheme 21

1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Disconnect the J1 power window regulator master switch assembly connector. Measure the voltage and resistance of the wire harness side connector. STANDARD: Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition J1-6 (B) - Body ground GR - Body ground Ignition power supply Ignition switch OFF Below 1 V J1-6 (B) - Body ground GR - Body ground Ignition power supply Ignition switch ON 11 to 14 V J1-1 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the J1 power window regulator master switch assembly connector. Measure the voltage of the connector. STANDARD VOLTAGE: Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition J1-3 (U) - J1-1 (E) R- W-B Power window motor UP output (driver side) Ignition switch ON, driver side power window switch OFF --> UP (manual operation) Below 1 V --> 11 to 14 V J1-4 (D) - J1-1 (E) G - W-B Power window motor DOWN output (driver side) Ignition switch ON, driver side power window switch OFF --> DOWN (manual operation) Below 1 V --> 11 to 14 V J1-4 (D) - J1-1 (E) G - W-B Power window motor DOWN output (driver side) Ignition switch ON, driver side power window fully closed --> driver side power window switch DOWN (AUTO operation) --> driver side power window fully open Below 1 V --> 11 to 14 V --> Below 1 V J1-16 (U) - J1-1 (E) W - W-B Power window motor UP output (passenger side) Ignition switch ON, passenger side power window switch OFF --> UP Below 1 V --> 11 to 14 V J1-15 (D) - J1-1 (E) P- W-B Power window motor DOWN output (passenger side) Ignition switch ON, passenger side power window switch OFF --> DOWN Below 1 V --> 11 to 14 V J1-12 (U) - J1-1 (E) Y - W-B Power window motor UP output (rear LH) Ignition switch ON, rear LH side power window switch OFF --> UP Below 1 V --> 11 to 14 V J1-13 (D) - J1-1 (E) B - W-B Power window motor DOWN output (rear LH) Ignition switch ON, rear LH side power window switch OFF --> DOWN Below 1 V --> 11 to 14 V J1-10 (U) - J1-1 (E) R - W-B Power window motor UP output (rear RH) Ignition switch ON, rear RH side power window switch OFF --> UP Below 1 V --> 11 to 14 V J1-18 (D) - J1-1 (E) G - W-B Power window motor DOWN output (rear RH) Ignition switch ON, rear RH side power window switch OFF --> DOWN Below 1 V --> 11 to 14 V If the result is not as specified, the master switch may have a malfunction. Check the AUTO light illumination. After turning the ignition switch ON, check that the AUTO light illuminates (green).
2. CHECK FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH Disconnect the I1 front power window regulator switch assembly RH connector. Measure the voltage of the wire harness side connector. STANDARD VOLTAGE: Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition I1-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V I1-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch ON 11 to 14 V I1-1 (D) - Body ground G - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF --> DOWN Below 1 V --> 11 to 14 V I1-2 (SD) - Body ground P - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF --> DOWN (Remote) Below 1 V --> 11 to 14 V I1-4 (U) - Body ground R - Body ground Power window motor UP output Ignition switch ON, power window switch OFF --> UP Below 1 V --> 11 to 14 V I1-5 (SU) - Body ground W - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch OFF --> UP (Remote) Below 1 V --> 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the I1 front power window regulator switch assembly RH connector.
3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Disconnect the H1 rear power window regulator switch assembly LH connector. Measure the voltage of the wire harness side connector. STANDARD VOLTAGE: Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition H1-3 (B) - Body ground SB - Body ground Ignition power supply Ignition switch OFF Below 1 V H1-3 (B) - Body ground SB - Body ground Ignition power supply Ignition switch ON 11 to 14 V H1-4 (U) - Body ground Y - Body ground Power window motor UP output Ignition switch ON, power window switch OFF --> UP Below 1 V --> 11 to 14 V H1-1 (D) - Body ground B - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF --> DOWN Below 1 V --> 11 to 14 V H1-5 (SU) - Body ground R - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch OFF --> UP (Remote) Below 1 V --> 11 to 14 V H1-2 (SD) - Body ground G - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF --> DOWN (Remote) Below 1 V --> 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the H1 rear power window regulator switch assembly LH connector.
4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH Disconnect the K1 rear power window regulator switch assembly RH connector. Measure the voltage of the wire harness side connector. STANDARD VOLTAGE: Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition K1-3 (B) - Body ground SB - Body ground Ignition power supply Ignition switch OFF Below 1 V K1-3 (B) - Body ground SB - Body ground Ignition power supply Ignition switch ON 11 to 14 V K1-4 (U) - Body ground Y - Body ground Power window motor UP output Ignition switch ON, power window switch OFF --> UP Below 1 V --> 11 to 14 V K1-1 (D) - Body ground B - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF --> DOWN Below 1 V --> 11 to 14 V K1-5 (SU) - Body ground R - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch OFF --> UP (Remote) Below 1 V --> 11 to 14 V K1-2 (SD) - Body ground G - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF --> DOWN (Remote) Below 1 V --> 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the K1 rear power window regulator switch assembly RH connector.

DATA LIST / ACTIVE TEST

1. READ DATA LIST HINT: Using a Techstream to read the DATA LIST allows the values and 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 ON and turn the tester ON. Enter the following menus: Body Electrical / Main Body / Data List. According to the display on the tester, read the "Data List". MAIN BODY: Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door Courtesy SW Driver side door courtesy light switch signal / ON or OFF ON: Driver door open OFF: Driver door closed - P Door Courtesy SW Front passenger side door courtesy light switch signal / ON or OFF ON: Front passenger door open OFF: Front passenger door closed - RR Door Courtesy SW Rear RH side door courtesy light switch signal / ON or OFF ON: Rear RH side door open OFF: Rear RH side door closed - RL Door Courtesy SW Rear LH side door courtesy light switch signal / ON or OFF ON: Rear LH side door open OFF: Rear LH side door closed
2. PERFORM ACTIVE TEST HINT: Using a 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 ON and turn the tester ON. Enter the following menus: Body Electrical / Main Body / Active Test. According to the display on the tester, perform the "Active Test". MAIN BODY: Tester Display Test Part Control Range Diagnostic Note IG OFF P/W Control Permission Output Power window control permission output ON or OFF