Power Window Control System (Diagnostic Codes & Symptom Tests): Diagnosis Toyota Highlander II рестайлинг

INSPECTION PROCEDURE

Note. When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn the courtesy light switch on and off at 1.5-second intervals until communication between the tester and vehicle begins.

Refer to DTC B2321 (LIN communication system), refer to INSPECTION PROCEDURE .

Note. When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn the courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

Scheme 160

Scheme 161

1. READ VALUE ON TECHSTREAM (LIN COMMUNICATION) Use the Data List to check the function of the power window regulator master switch. Connect Techstream to the DLC3. Turn the ignition switch on (IG) and Turn on Techstream. Select the following menu items: Body / Main Body / Data List / Comm D-Door Mtr. Read the indication displayed on the tester. MAIN BODY: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Communication D-Door Motor Connection status between power window regulator motor assembly (driver side) and main body ECU / OK or Stop OK: Connection Stop: No connection - OK OK is displayed on Techstream screen. NG --> See step 6 OK: Go to next step
2. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF Check the power window operation function after the ignition switch is turned off. RESULT Status Proceed to When power window can still be operated even after opening driver door or front passenger door within approximately 45 seconds of ignition switch being turned off A When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch turned off B B --> See step 7 A: Go to next step
3. READ VALUE ON TECHSTREAM (DOOR COURTESY LIGHT SWITCH) Use the Data List to check the driver side door courtesy switch signal. Connect Techstream to the DLC3. Turn the ignition switch on (IG) and Turn on Techstream. Select the following menu items: Body / Main Body / Data List / D Dor Cty SW. Read the indication displayed on the tester. MAIN BODY: Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door Courtesy Switch Driver side door courtesy switch signal / ON or OFF ON: Driver door open OFF: Driver door closed - OK OK is displayed on Techstream screen. NG --> See step 4 OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side) Measure the resistance according to the value(s) in the table below. Standard resistance Tester Connection Switch Condition Specified Condition 1 - Switch body Pushed 10 kohms or higher 1 - Switch body Not pushed Below 1 ohms NG --> See step 8 OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR COURTESY SWITCH) Check the harness and connector between the main body ECU and driver side door courtesy switch. Disconnect the D8 main body ECU connector. Disconnect the O2 switch connector. Measure the resistance according to the value(s) in the table below. Standard resistance Tester Connection Driver Door Condition Specified Condition D8-24 (DCTY) - O2-1 (Driver side) Always Below 1 ohms D8-24 (DCTY) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
6. GO TO DTC (2321). Refer to «DTC B2321: Driver Side Door ECU Communication Stop»(ref-422516-S02279945692011092600000)
7. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side). Refer to «REMOVAL»(ref-422557-S31617504892011092600000)
8. REPLACE DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side). Refer to «REMOVAL»(ref-422466-S36982012252011092600000)