Power Window Control System (W/jam Protection Function) (Diagnostic Codes & Symptom Tests): Overview Toyota Tundra II

DESCRIPTION

The power window regulator motor is driven by operating the power window switch. The power window regulator sub-assembly consists of the motor, regulator and ECU.

This DTC is stored when the power window regulator motor has a malfunction, or the ECU built into the power window regulator motor determines that the fully closed window position has deviated approximately 20 mm (0.787 in.) or more from the normal position.

HINT

DTC B2311 is set when the ECU for the front door power window regulator motor assembly LH or RH malfunctions.

Note. When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used. In such cases, the auto up function can be resumed by repeating the following operation at least 5 times: Close the power window by fully pulling up the power window switch and holding it in the auto up position. Open the power window by fully pushing down the switch.

DRIVER SIDE MOTOR

FRONT PASSENGER SIDE MOTOR

The power window regulator sub-assembly consists of the motor, regulator and ECU. The power window regulator motor is driven by operating the power window switch. This DTC is output when the ECU built into the regulator motor determines that the power window switch is stuck.

Note. When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the AUTO UP function is used. In such cases, the AUTO UP function can be resumed by repeating the following operation at least 5 times: (a) Close the power window by fully pulling up the power window switch and holding it in the AUTO UP position. (b) Open the power window by fully pushing down the power window switch.

MASTER SWITCH

DRIVER SIDE MOTOR

FRONT PASSENGER SIDE MOTOR

Scheme 12

Scheme 13

Scheme 14

Scheme 15

1. CHECK LIN COMMUNICATION SYSTEM Check for LIN communication system DTCs related to the power window control system. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-389458-S18552023962011032200000) . OK LIN communication system DTCs are not output. NG --> See step 9 OK: Go to next step
2. CHECK DTC Check where DTC B2312 is output from. RESULT Result Proceed to DTC B2312 output from power window regulator master switch assembly. A DTC B2312 output from front power window regulator motor assembly LH. B DTC B2312 output from front power window regulator motor assembly RH. C C --> See step 6 B --> See step 4 A: Go to next step
3. READ VALUE USING TECHSTREAM (MASTER SWITCH) Use the Data List to check if the master switch is functioning properly. MASTER SWITCH Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door P/W Auto SW Driver side power window auto UP/DOWN switch signal / ON or OFF ON: Driver side switch of master switch operated OFF: Driver side switch of master switch not operated - P Door P/W Auto SW Front passenger side power window remote auto UP/DOWN switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - P Door P/W Up SW Front passenger side power window remote manual UP switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - P Door P/W Down SW Front passenger side power window remote manual DOWN switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - Window Lock Switch Status Power window LOCK switch / ON or OFF ON: Power window lock switch in LOCK position OFF: Power window lock switch in UNLOCK position - OK The Techstream display changes normally when master switch is operated. NG --> See step 10 OK --> END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE)
4. READ VALUE USING TECHSTREAM (DRIVER SIDE MOTOR) Use the Data List to check if the driver side motor is functioning properly. D-DOOR MOTOR Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door P/W Auto SW Driver side power window auto UP/DOWN switch signal / ON or OFF ON: Driver side switch operated OFF: Driver side switch not operated - D Door P/W Up SW Driver side power window MANUAL UP switch signal / ON or OFF ON: Driver side switch operated OFF: Driver side switch not operated - D Door P/W Down SW Driver side power window MANUAL DOWN switch signal / ON or OFF ON: Driver side switch operated OFF: Driver side switch not operated - OK The Techstream display changes normally when master switch is operated. OK --> END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE) NG --> Go to next step
5. CHECK HARNESS AND CONNECTOR (MASTER SWITCH - DRIVER SIDE MOTOR) Disconnect the N2 master switch connector. Disconnect the N12 motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N2-4 (UP) - N12-10 (UP) Always Below 1 ohms N2-5 (DOWN) - N12-7 (DOWN) Always Below 1 ohms N2-4 (UP) - Body ground Always 10 kohms or higher N2-5 (DOWN) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
6. READ VALUE USING TECHSTREAM (FRONT PASSENGER SIDE MOTOR) Use the Data List to check if the front passenger side motor is functioning properly. P-DOOR MOTOR Tester Display Measurement Item/Range Normal Condition Diagnostic Note P Door P/W Auto SW Front passenger side power window auto UP/DOWN switch signal / ON or OFF ON: Power window regulator switch assembly operated OFF: Power window regulator switch assembly not operated - P Door P/W Up SW Front passenger side power window manual UP switch signal / ON or OFF ON: Power window regulator switch assembly operated OFF: Power window regulator switch assembly not operated - P Door P/W Down SW Front passenger side power window manual DOWN switch signal / ON or OFF ON: Power window regulator switch assembly operated OFF: Power window regulator switch assembly not operated - OK The Techstream display changes normally when master switch is operated. OK --> END (DUE TO KEEPING SWITCH OPERATED FOR 20 SECONDS OR MORE) NG --> Go to next step
7. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY Remove the power window regulator switch assembly. Refer to «REMOVAL»(ref-389503-S09679546262011032200000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 6 (UP) - 1 (GND) Manual UP operation Below 1 ohms 7 (DOWN) - 1 (GND) Manual DOWN operation Below 1 ohms 8 (AUTO) - 1 (GND) AUTO UP/DOWN operation Below 1 ohms 6 (UP) - 1 (GND) Not operated 10 kohms or higher 7 (DOWN) - 1 (GND) Not operated 10 kohms or higher 8 (AUTO) - 1 (GND) Not operated 10 kohms or higher NG --> See step 12 OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH - FRONT PASSENGER SIDE MOTOR) Disconnect the M10 switch connector. Disconnect the M11 motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition M10-6 (UP) - M11-10 (UP) Always Below 1 ohms M10-7 (DOWN) - M11-7 (DOWN) Always Below 1 ohms M10-8 (AUTO) - M11-4 (AUTO) Always Below 1 ohms M10-6 (UP) - Body ground Always 10 kohms or higher M10-7 (DOWN) - Body ground Always 10 kohms or higher M10-8 (AUTO) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
9. GO TO LIN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-389458-S18552023962011032200000)
10. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-389503-S34606719122011032200000)
11. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to «REMOVAL»(ref-389503-S17893734072011032200000)
12. REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-389503-S09679546262011032200000)
13. REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH. Refer to «REMOVAL»(ref-389503-S17893734072011032200000)

The power window regulator motor is driven by operating the power window switch. The power window regulator sub-assembly has motor, regulator and ECU functions.

When the ECU determines that the power window regulator motor has not been initialized, DTC B2313 is stored.

HINT

DTC B2311 is set when the ECU for the front power window regulator motor assembly LH or RH malfunctions.

Note. When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used. In such cases, the auto up function can be resumed by repeating the following operation at least 5 times: Close the power window by fully pulling up the power window switch and holding it in the auto up position. Open the power window by fully pushing down the switch.

DRIVER SIDE MOTOR

FRONT PASSENGER SIDE MOTOR

Front passenger side

When the ignition switch is ON and the window lock switch is OFF, the master switch sends remote UP/DOWN signals to the front passenger side motor via the LIN communication line.

Rear side

With the ignition switch ON, the master switch transmits remote switch signals to the regulator switches of the rear door power windows. Then, each regulator switch drives its respective power window regulator motor.

HINT

The front passenger side and rear power windows cannot be operated when the window lock switch of the master switch is pressed.

Scheme 16

1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH) Turn the window lock switch OFF and operate the switches on the master switch. Check that the remote UP/DOWN function operates normally. OK Remote UP/DOWN function operates normally. RESULT Result Proceed to OK A NG (for Front RH side) B NG (for Rear side) C C --> See step 5 B --> Go to next step A --> END
2. CHECK LIN COMMUNICATION SYSTEM Check for LIN communication system DTCs related to the power window control system. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-389458-S18552023962011032200000) . OK LIN communication system DTCs are not output. NG --> See step 6 OK: Go to next step
3. READ VALUE USING TECHSTREAM (MASTER SWITCH) Use the Data List to check if the master switch is functioning properly. MASTER SWITCH Tester Display Measurement Item/Range Normal Condition Diagnostic Note P Door P/W Auto SW Front passenger side power window remote auto UP/DOWN switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - P Door P/W Up SW Front passenger side power window remote manual UP switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - P Door P/W Down SW Front passenger side power window remote manual DOWN switch signal / ON or OFF ON: Front passenger side switch of master switch operated OFF: Front passenger side switch of master switch not operated - OK The Techstream display changes normally when master switch is operated. NG --> See step 5 OK --> Go to next step
4. REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH. Refer to «REMOVAL»(ref-389503-S17893734072011032200000)
5. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-389503-S34606719122011032200000)
6. GO TO LIN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-389458-S18552023962011032200000)

1. If the manual UP/DOWN function does not operate, there may be a malfunction in the master switch, the driver side motor, or the harness or connector.

Scheme 17

1. If the manual UP/DOWN function does not operate, there may be a malfunction in the power window regulator switch assembly, the front passenger side motor, or the harness or connector.

Scheme 18

1. If the rear LH side manual UP/DOWN function does not operate, there may be a malfunction in the rear switch LH, the rear motor LH, the master switch, or the harness or connector.

Scheme 19

1. If the rear RH side manual UP/DOWN function does not operate, there may be a malfunction in the rear switch RH, the rear motor RH, the master switch, or the harness or connector.

Scheme 20

1. If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following

1. The ECU in the driver side motor determines that the driver side motor has not been initialized.
2. The master switch has a malfunction.
3. The Hall-IC in the driver side motor has a malfunction.
4. The wiring between the master switch and the driver side motor is open or shorted.

If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following

1. The ECU in the front passenger side motor determines that the front passenger side motor has not been initialized.
2. The power window regulator switch assembly has a malfunction.
3. The Hall-IC in the front passenger side motor has a malfunction.
4. The wiring between the power window regulator switch assembly and the front passenger side motor is open or shorted.

Scheme 21

When the driver door key cylinder (key linked switch) is turned, the following occurs: 1) the door lock motor receives the signal; 2) the main body ECU (driver side junction block) sends the signal to the power window regulator motors; and 3) the power window motors are activated.

If the door glass or the power window regulator motor does not operate smoothly, the jam protection function may be triggered automatically, resulting in the AUTO UP function being unable to fully close the window.*

1. *: for Driver and Front Passenger Side