Power Window Control System (Diagnostics - Introduction): Other Lexus GS IV

PRECAUTION [03/2012 - ]

1. POWER WINDOW CONTROL SYSTEM PRECAUTIONS WARNING: The power window control system prohibits the auto up/down function when the jam protection function malfunctions. Therefore, troubleshoot the power window control system after confirming that no trouble codes are output. If the power window regulator motor assembly has been replaced with a new one, initialize the power window control system. If the power window regulator motor assembly and door window regulator sub-assembly have been removed and installed, or if the power window regulator motor assembly was reused when a door glass or door glass run was replaced, initialize the power window control system. The jam protection function may operate unexpectedly even when the power window control system is normal, due to detection of a value different from the operation learned value when the door glass moving speed changes sharply under any of the following conditions: A power window is being opened or closed while the vehicle is driving on a rough road. A power window is being opened or closed while the door is being opened or closed. A sharp voltage change occurs. NOTE: Do not disconnect the cable from the negative (-) auxiliary battery terminal while the power switch is on (IG). Otherwise, DTC B2313 will be stored.
2. DOOR CONTROL RECEIVER EXPRESSIONS The type of door control receiver used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Vehicle Specification Part Name in Manual Actual Part Name w/ Tire Pressure Warning System Door control receiver Door control and tire pressure monitoring system receiver assembly

Scheme 17

Scheme 18

Scheme 19

Scheme 20

Scheme 21

COMMUNICATION TABLE

CUSTOMIZE PARAMETERS [03/2012 - ]

1. CUSTOMIZE POWER WINDOW CONTROL SYSTEM HINT: The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. Customizing with the Techstream. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Utility / Customize / Power Window. Select the setting by referring to the table below. Display Default Content Setting Relevant ECU Door Key P/W Up OFF This function is used to close the windows by operating the mechanical key. ON or OFF Main body ECU (Multiplex network body ECU) Door Key P/W Down OFF This function is used to open the windows by operating the mechanical key. ON or OFF Main body ECU (Multiplex network body ECU) P/W Down w/ Transmitter OFF This function is used to open the window using the wireless key transmitter. ON or OFF Main body ECU (Multiplex network body ECU) P Window Auto Up Avail This function is used to enable or disable the auto up function for the front door window RH using the front power window regulator switch assembly RH. Avail or Not Avl Front power window regulator motor assembly RH P Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the front door window RH using the multiplex network master switch assembly. Avail or Not Avl Front power window regulator motor assembly RH RR Window Auto Up Avail This function is used to enable or disable the auto up function using the rear power window regulator switch assembly RH. Avail or Not Avl Rear power window regulator motor assembly RH RR Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the rear door window RH using the multiplex network master switch assembly. Avail or Not Avl Rear power window regulator motor assembly RH RL Window Auto Up Avail This function is used to enable or disable the auto up function using the rear power window regulator switch assembly LH. Avail or Not Avl Rear power window regulator motor assembly LH RL Window Auto Up From Driver Avail This function is used to enable or disable the remote auto up function for the rear door window LH using the multiplex network master switch assembly. Avail or Not Avl Rear power window regulator motor assembly LH Enter the following menus: Utility / Customize / Main Body. Select the setting by referring to the table below. Display Default Content Setting Relevant ECU Window Open Warning ON This function is used to enable or disable the power window open warning. ON or OFF Main body ECU (Multiplex network body ECU)

INITIALIZATION [03/2012 - ]

1. INITIALIZE POWER WINDOW CONTROL SYSTEM [POWER WINDOW REGULATOR MOTOR ASSEMBLY (ALL DOORS)] WARNING: When a door window regulator assembly, power window regulator motor assembly, door glass or door glass run is reinstalled or replaced, the power window control system must be initialized. Functions such as the auto up and down, jam protection, key-off operation, key-linked operation and wireless transmitter-linked operation will not operate if initialization is not performed. NOTE: When a power window regulator motor assembly is replaced, DTC B2313 is stored. Clear the DTC after initialization. When performing initialization, do not perform any other procedures. When performing initialization, use the power window switch of each door to initialize each door window. If initialization is not completed properly, the LIN communication system may have a malfunction. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - ]»(ref-600622-S38803552542014022400000) . Make sure to park the vehicle and turn off all the electrical systems before performing initialization. Initialization will be canceled if the vehicle is driven during initialization. Make sure not to hit, strike or vibrate the door window glass during initialization because the vehicle is learning the sliding resistance of the door window glass. Make sure not to turn the power switch to on (IG) or off during initialization. HINT: When the auxiliary battery is replaced, it is not necessary to initialize the power window regulator motor assembly. Perform initialization according to the table below. Condition of Power Window Proceed to Initialization method when a power window regulator motor assembly has been replaced with a new one. Procedure A Initialization method when a power window regulator motor assembly has been removed/installed or a door glass and/or door glass run etc. have been removed/installed or replaced with new ones. HINT: Use this procedure if the power window regulator motor assembly has been reused. Procedure B Initialization method when a reverse rotation malfunction occurs due to a sliding resistance change resulting from adjustment etc. Procedure C Procedure A Connect the auxiliary battery and turn the power switch to on (IG) (at this time, the LED on the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly blinks to indicate that it is ready for initialization). Fully open the window by fully pushing down the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully opened. Fully close the power window by fully pulling up the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully closed to reset the glass position. The LED on the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly stops blinking and illuminates to indicate that initialization is complete. Procedure B Connect the auxiliary battery and turn the power switch to on (IG). Fully close the power window by fully pulling up the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 6 seconds or more after the window is fully closed (if the power window does not move or stops halfway even when the switch is fully pulled up, release the switch and fully pull it again). Fully open the window by pushing down the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully opened. Release the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly. Then fully push down and hold the switch for 4 seconds or more. Fully close the power window by fully pulling up the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete initialization. Procedure C Connect the auxiliary battery and turn the power switch to on (IG). Fully open the window by fully pushing down the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully opened. Fully close the power window by fully pulling up the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete initialization.