Power Window Control System - Diagnostics: Diagnosis Toyota Highlander I рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

Troubleshoot in accordance with the following procedures.

1. VEHICLE BROUGHT TO WORKSHOP
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See «CUSTOMER PROBLEM ANALYSIS CHECK»(ref-226395-S33093556132006032800000) )
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) Check that there is no abnormality in the communication system by inspecting the communication function of the multiplex communication system with the hand-held tester. (ECU unconnected, communication line abnormal) Without code output, proceed to A. (ECU unconnected, communication line abnormal) With code output, proceed to B. B: GO TO MULTIPLEX COMMUNICATION SECTION (See «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/highlander/i-2003-2007/remont/communication-devices/#multiplex-communication-system-diagnostics__diagnostic-trouble-code-chart) ) A: Go To Next Step
4. DIAGNOSTIC TROUBLE CODE CHECK (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-226395-S27283216652006032800000) ) Check the diagnostic trouble code. Without code output, proceed to A. With code output, proceed to B. B: Go to step 7 A: Go To Next Step
5. PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-226395-S33629861062006032800000) ) Without applicable symptoms, proceed to A. With applicable symptoms, proceed to B. B: Go to step 7 A: Go To Next Step
6. PERFORM TROUBLESHOOTING IN THE FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM Pre-check (See «PRE-CHECK»(ref-226395-S31996108552006032800000) ) Check with hand-held tester (ECU data monitor). Check with hand-held tester (Active test). Terminals of ECU (See «TERMINALS OF ECU»(ref-226395-S00471419062006032800000) )
7. ADJUSTMENT, REPAIR OR REPLACEMENT END

Scheme 1

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODES (DTC) LIST

1. DIAGNOSTIC TROUBLE CODE Door ECU (driver side) DTC B1231/31 And B1232/32 DIAGNOSTIC TROUBLE CODE CHART DTC Code Item Diagnosis B1231/31 Driver side jam protection limit switch malfunctions Power window regulator motor assy RH open in limit switch system B1232/32 Driver side jam protection sensor malfunctions Power window regulator motor assy RH open or short in pulse sensor system
2. MONITOR CODE HINT: The monitor code shows the switch condition when a DTC is output. When a monitor code is indicated while the switch is not operated, the switch is detected in being stuck. When a monitor code is not indicted while the switch is operated, it is detected that the switch contact condition is bad. DTC B1221/21 DIAGNOSTIC TROUBLE CODE CHART DTC Code Item Monitor Item B1221/21 Driver side switch 1 (operating) Any switch of the power window regulator master switch is ON

Scheme 2

Scheme 3

Scheme 4

Scheme 5

Scheme 6

Scheme 7

1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY (DOOR ECU) Disconnect the P5 master switch connector. Check the voltage or continuity of each terminal of the wire harness side connector. Standard: If the result is not as specified, the wire harness side may malfunction. Reconnect the P5 switch connector, and check the voltage of each terminal of the connector. Standard: If the result is not as specified, the master switch may malfunction.
2. CHECK MULTIPLEX NETWORK BODY ECU Disconnect the body ECU connectors B9, B10, B11 and B12. Check the voltage or continuity of each terminal of the wire harness side connector. Standard: If the result is not as specified, the wire harness side may malfunction. Reconnect the ECU connectors, and check the voltage of each terminal of the connectors. Standard: If the result is not as specified, the door ECU or communication line may malfunction.

Scheme 8

CIRCUIT DESCRIPTION

This DTC is output when any switch of the power window regulator master switch assy (door ECU) is ON.

DTC B1221/21 DIAGNOSTIC TROUBLE CODE CHART

INSPECTION PROCEDURE

1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY Check if code B1221/21 will disappear but only B1211/11 (communication stop) will be output when the master switch connector is disconnected. B1221/21 code output, proceed to A. B1211/11 code output, proceed to B. B: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY A: REPLACE MULTIPLEX NETWORK BODY ECU

This DTC is output when the power window regulator motor assy malfunctions.

DTC B1231/31 And B1232/32 DIAGNOSTIC TROUBLE CODE CHART

Scheme 9

Scheme 10

Scheme 11

1. CHECK WIRE HARNESS Disconnect the connectors of the power window regulator master switch assy and power window regulator motor assy LH. Check the continuity between the master switch and regulator motor. Standard: NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER SIDE)

The power window regulator master switch assy (door ECU) controls the driver side power window by itself and drives the driver side power window motor.

Note. The power window system has a function with a large-scale multiplex communication. First of all, inspect the communication function depending on "how to proceed with troubleshooting" and confirm that the communication system has no abnormality. The finally perform the troubleshooting.

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

1. CHECK FUSE Check if the P FR DOOR 20 A, ECU B 7.5 A and IG1 7.5 A fuses are normal. NG: REPLACE FUSE OK: Go To Next Step
2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY Check the power source voltage. Disconnect the master switch connector. Check the voltage of each terminal of the vehicle's side connector of the master switch. Standard: NG REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go To Next Step
3. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY Check the GND. Disconnect the master switch connector. Check the continuity between terminal 2 (GND) of the vehicle's side connector of the master switch and the body ground. Standard: Continuity (constant) NG REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go To Next Step
4. CHECK POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER'S SIDE) Disconnect the master switch connector. Inspect the door glass operation when the battery voltage is applied between terminals 1 (UP) and 11 (DN) of the vehicle's side connector of the master switch. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 1 (UP) Battery negative - Terminal 11 (DN) Upward Battery positive - Terminal 11(DN) Battery negative - Terminal 1 (UP) Downward OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY NG: Go To Next Step
5. INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER SIDE) Inspect the power window regulator motor assy LH (Driver side) operation. NOTE: Do not apply the battery voltage, because the pulse sensor and limit switch could be damaged if the battery voltage is applied to terminals 2, 3 and 6 of the power window regulator motor connector. Be sure to reset the power window regulator motor (initial position setting of limit switch) when the driver's side power window regulator motor is installed to the regulator. Check that the motor operator operates smoothly when the battery positive voltage is applied to each terminal of the connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 5 Battery negative - Terminal 4 Clockwise Battery positive - Terminal 4 Battery negative - Terminal 5 Counterclockwise Inspect the PTC operation inside the power window regulator motor. NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle. Set a DC 400 A probe of the electrical tester in the wire harness of terminal 4 or 5. NOTE: Match the arrow mark of the probe with the current direction. Set the door glass in the fully closed position. When 60 seconds have elapsed after the door glass is fully closed, check now long the current takes to charge, from approximately 16 - 34 A into 1 A or less, when the power window switch is turned UP once again. Standard: Approximately 4 - 90 seconds When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN. NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH OK: REPAIR OR REPLACE HARNESS AND CONNECTOR

With the ignition switch ON and the window lock switch at NORMAL (except driver side), each regulator switch drivers each power window motor.

Note. The power window system has a function with a large-scale body multiplex communications. First of all, inspect the communication function depending on the "how to proceed with troubleshooting", and check that the there is no abnormality in the communication system. Then finally proceed with the troubleshooting.

Scheme 18

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. CHECK FUSE Check whether the regulator switch fuses D FR DOOR 25 A, P RR DOOR 20 A and D RR DOOR 20 A of inoperative seats are normal. HINT: If the fuse for the passenger side door is normal, proceed to OK-A. If the fuse for the rear RH and LH doors is normal, proceed to OK-B. If the fuse for the passenger side door is defective, proceed to NG-A. If the fuse for the rear RH door is defective, proceed to NG-B. If the fuse for the rear LH door is defective, proceed to NG-C. OK-B: Go to step 6 NG-A: REPLACE FUSE (D FR DOOR 25 A) NG-B: REPLACE FUSE (P RR DOOR 20 A) NG-B: REPLACE FUSE (D RR DOOR 20 A) OK-A: Go To Next Step
2. CHECK POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE) Inspect the power source voltage. Disconnect the regulator switch connector. Check the voltage between terminal 7 (B) of the regulator switch vehicle's side connector and the body ground. Standard: 10 - 14 V with ignition switch ON NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go To Next Step
3. CHECK POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE) Inspect the GND. Disconnect the regulator switch connector. Check the continuity between terminal 1 (E) of the regulator switch vehicle's side connector and the body ground. Standard: Continuity (constant) NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go To Next Step
4. CHECK POWER WINDOW REGULATOR MOTOR ASSY RH (PASSENGER SIDE) Inspect the motor operation. Disconnect the regulator switch connector. Inspect the door glass operation when the battery voltage is applied between terminals 3 (U) and 6 (D) of the regulator switch vehicle's side connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 3 (U) Battery negative - Terminal 6 (D) Upward Battery positive - Terminal 6 (D) Battery negative - Terminal 3 (U) Downward OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY NG: Go To Next Step
5. INSPECT POWER WINDOW REGULATOR MOTOR ASSY RH (PASSENGER SIDE) Inspect the operation of the front LH power window regulator motor assembly. Check that the motor operates smoothly when the battery voltage is applied to each terminal of the connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 4 Battery negative - Terminal 5 Clockwise rotation toward driving axis Battery positive - Terminal 5 Battery negative - Terminal 4 Counterclockwise rotation toward driving axis Inspect the PTC operation inside the power window regulator motor. NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle. Set a DC 400 A probe of the electrical tester in the wire harness of terminal 1 or 2. NOTE: Match the arrow mark of the probe with the current direction. Set the door glass in the fully closed position. When 60 seconds have elapsed after the door glass is fully closed, check now long the current takes to charge, from approximately 16 - 34 A into 1 A or less, when the power window switch is turned UP once again. Standard: Approximately 4 - 90 seconds When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY RH
6. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR RH AND LH) Inspect the power source voltage. Disconnect the regulator switch connector. Check the voltage between terminal 7 (+B) of the regulator switch vehicle's side connector and the body ground. Standard: 10 - 14 V with ignition switch ON NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go To Next Step
7. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR RH AND LH) Inspect the GND. Disconnect the regulator switch connector. Check the continuity between terminal 1 (E) of the regulator switch vehicle's side connector and the body ground. Standard: Continuity (constant) NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK-A: Go to step 8 (In case Rear RH side) OK-B: Go to step 10 (In case Rear LH side)
8. CHECK POWER WINDOW REGULATOR MOTOR ASSY RH (REAR RH) Inspect the motor operation. Disconnect the regulator switch connector. Inspect the door glass operation when the battery voltage is applied between terminals 3 (U) and 6 (D) of the regulator switch vehicle's side connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring condition Operational direction Battery positive - Terminal 3(U) Battery negative - Terminal 6(D) Upward Battery positive - Terminal 6(D) Battery negative - Terminal 3(U) Downward OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR NG: Go To Next Step
9. INSPECT POWER WINDOW REGULATOR MOTOR ASSY RH (REAR RH) Inspect the operation of the power window regulator motor assy RH (Rear RH side). Check that the motor operates smoothly when the battery voltage is applied to each terminal of the connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 5 Battery negative - Terminal 4 Clockwise rotation toward driving axis Battery positive - Terminal 4 Battery negative - Terminal 5 Counterclockwise rotation toward driving axis Inspect the PTC operation inside the power window regulator motor. NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle. Set a DC 400 A probe of the electrical tester in the wire harness of terminal 1 or 2. NOTE: Match the arrow mark of the probe with the current direction. Set the door glass in the fully closed position. When 60 seconds have elapsed after the door glass is fully closed, check now long the current takes to charge, from approximately 16 - 34 A into 1 A or less, when the power window switch is turned UP once again. Standard: Approximately 4 - 90 seconds When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY RH
10. CHECK POWER WINDOW REGULATOR MOTOR ASSY LH (REAR LH) Inspect the motor operation. Disconnect the regulator switch connector. Inspect the door glass operation when the battery voltage is applied between terminals 3 (U) and 6 (D) of the regulator switch vehicle's side connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 3 (U) Battery negative - Terminal 6 (D) Upward Battery positive - Terminal 6 (D) Battery negative - Terminal 3 (U) Downward OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY NG: Go To Next Step
11. INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH (REAR LH) Inspect the operation of the power window regulator motor assy LH (Rear LH side). Check that the motor operates smoothly when the battery voltage is applied to each terminal of the connector. Standard: MEASURING CONDITION AND OPERATIONAL DIRECTION Measuring Condition Operational Direction Battery positive - Terminal 4 Battery negative - Terminal 5 Clockwise rotation toward driving axis Battery positive - Terminal 5 Battery negative - Terminal 4 Counterclockwise rotation toward driving axis Inspect the PTC operation inside the power window regulator motor. NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle. Set a DC 400 A probe of the electrical tester in the wire harness of terminal 1 or 2. NOTE: Match the arrow mark of the probe with the current direction. Set the door glass in the fully closed position. When 60 seconds have elapsed after the door glass is fully closed, check now long the current takes to charge, from approximately 16 - 34 A into 1 A or less, when the power window switch is turned UP once again. Standard: Approximately 4 - 90 seconds When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN. NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH OK: REPAIR OR REPLACE HARNESS AND CONNECTOR

When the ignition switch is ON, the master switch (door ECU) sends a remote switch signal for the other seats multiply to the body ECU, then the body ECU drives the power window motor for the other seats.

Note. The power window system has a function with a large-scale body multiplex communications. First of all, inspect the communication function depending on the "how to proceed with troubleshooting", and check that the there is no abnormality in the communication system. Then finally proceed with the troubleshooting.

Scheme 29

Scheme 30

Scheme 31

Scheme 32

Scheme 33

Scheme 34

Scheme 35

1. CHECK HAND-HELD TESTER Monitor code Using the hand-held tester, inspect the monitor code of the door ECU. HINT: The monitor code shows the switch condition when a DTC is output. When a monitor code is indicated while the switch is not operated, the switch is detected in being stuck. When a monitor code is not indicated while the switch is operated, it is detected that the switch contact condition is bad. DTC B1221/21 DIAGNOSIS TROUBLE CODE CHART DTC Code Item Monitor Item B1221/21 Driver's side switch 1 (operating) Any switch of the power window regulator master switch is ON NG: Go to step 3 OK: Go to next step
2. CHECK MULTIPLEX NETWORK BODY ECU Inspect the output of the body ECU. Inspect the voltage between terminal 7 (GND 1) and each terminal of the door which body ECU is inoperative. Standard: HINT: When an output to the passenger door is normal, proceed to OK-A. When outputs to the both rear doors are normal, proceed to OK-B. When an output to either of the passenger door and both rear doors are abnormal, proceed to NG. OK-B: Go to step 4 NG: REPLACE MULTIPLEX NETWORK BODY ECU OK-A: Go to next step
3. CHECK POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE) Check the continuity. Check the continuity between each terminal of the connectors. Standard: OK: REPAIR OR REPLACE HARNESS AND CONNECTOR NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY
4. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR RH AND LH) Check the continuity. Check the continuity between each terminal of the connectors. Standard: OK: REPAIR OR REPLACE HARNESS AND CONNECTOR NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR

See also:
• DIAGNOSTIC TROUBLE CODE CHART