Power Windows: Diagnosis Lexus ES XV30

CLEARING DIAGNOSTIC TROUBLE CODES

The DTC and frozen frame data will be erased by either action. Operate the OBD II scan tool (complying with SAE J1978) or hand-held tester to erase the codes. See the OBD II scan tool's instruction book for operation instructions.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DIAGNOSTIC TROUBLE CODE DEFINITIONS

Circuit Description

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the driver's door ECU (power window regulator master switch) monitors the signal via the power window regulator master switch and drives the power window motor.

Inspection Procedure

1. Perform the Active Test by using the hand-held tester. Check data monitor (for MANUAL UP/DOWN switch). Using the hand-held tester, check that DTC B1221 is output when the switch is operated. Using DTC B1221, which is a code when any master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC B1221 when the manual UP/DOWN switch is ON or no output of DTC B1221 when the manual UP/DOWN switch is OFF, the switch circuit can be considered normal. If the results are OK, go to the next step. If the results are not good, go to step 3 .
2. Perform the Active Test by using the hand-held tester: Select the Active Test and then check that the power window operates (P/W UP/DOWN). During the Active Test, the hand-held tester sends a signal to the door ECU to drive the power window motor. If the power window operates, the power window motor itself and the wiring harness between the power window motor and door ECU is considered normal. Perform Data Monitor (for AUTO UP/DOWN switch) of the door ECU. The Data Monitor displays on the hand-held tester the switch condition judged by the door ECU. If the display changes according to the actual switch operation (ON: AUTO UP/DOWN switch ON and OFF: AUTO UP/DOWN switch OFF), the switch itself and the wiring harness between the switch and door ECU is considered normal. If the Active Test and Data Monitor are both OK or if only the Active Test is OK and the Data Monitor is not good, replace the power window regulator master switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. If the Active Test is not good and the Data Monitor is OK, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (DRIVER'S DOOR)»(ref-152599-S41976473852003021700000) under COMPONENT TESTS. If the Active Test and Data Monitor are both not good, go the next step.
3. Replace the power window regulator master switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (DRIVER'S DOOR)»(ref-152599-S41976473852003021700000) under COMPONENT TESTS.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the passenger's door ECU (power window regulator switch) monitors the signal via the power window regulator switch and drives the power window motor.

1. Perform the Active Test by using the hand-held tester. Check data monitor (for MANUAL UP/DOWN switch). Using the hand-held tester, check that DTC B1223 is output when the switch is operated. Using DTC B1223, which is a code when any master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC B1223 when the manual UP/DOWN switch is ON or no output of DTC B1223 when the manual UP/DOWN switch is OFF, the switch circuit can be considered normal. If the results are OK, go to the next step. If the results are not good, go to step 3 .
2. Perform the Active Test by using the hand-held tester: Select the Active Test and then check that the power window operates (P/W UP/DOWN). During the Active Test, the hand-held tester sends a signal to the door ECU to drive the power window motor. If the power window operates, the power window motor itself and the wiring harness between the power window motor and door ECU is considered normal. Perform Data Monitor (for AUTO UP/DOWN switch) of the door ECU. The Data Monitor displays on the hand-held tester the switch condition judged by the door ECU. If the display changes according to the actual switch operation (ON: AUTO UP/DOWN switch ON and OFF: AUTO UP/DOWN switch OFF), the switch itself and the wiring harness between the switch and door ECU is considered normal. If the Active Test and Data Monitor are both OK or if only the Active Test is OK and the Data Monitor is not good, replace the power window regulator switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. If the Active Test is not good and the Data Monitor is OK, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (PASSENGER'S DOOR)»(ref-152599-S14998248162003021700000) under COMPONENT TESTS. If the Active Test and Data Monitor are both not good, go the next step.
3. Replace the power window regulator switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (PASSENGER'S DOOR)»(ref-152599-S14998248162003021700000) under COMPONENT TESTS.

1. Check the limit switch circuit wiring harness. Disconnect the master switch assembly (D17) and power window regulator motor (P7) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY»(ref-152599-S30891796832003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector. INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY Switch - Motor Specified Condition 5 (LMT) - 6 (LMT) Continuity 13 (SGND) - 1 (E) Continuity
2. Check the pulse sensor circuit wiring harness. Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY»(ref-152599-S18750926032003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector. INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY Switch - Motor Specified Condition 15 (PLS) - 3 (PLS) Continuity 13 (SGND) - 1 (E) Continuity
3. Replace the driver door power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (FRONT DOOR)»(ref-152599-S31344527802003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, replace the power window regulator master switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION.

1. Check the limit switch circuit wiring harness. Disconnect the master switch assembly (F13) and power window regulator motor (P8) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY»(ref-152599-S30891796832003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector.
2. Check the pulse sensor circuit wiring harness. Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING DRIVER DOOR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY»(ref-152599-S18750926032003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector.
3. Replace the driver door power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (FRONT DOOR)»(ref-152599-S31344527802003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, replace the power window regulator switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO operations are prohibited. Confirm the diagnosis code.

When the driver's door is held in the locking state for 2.5 seconds or more via the key operation with no key inserted in the ignition switch, the driver door ECU drives the power window motor at the same time when a signal is transmitted multiply to the passenger door ECU and body ECU. Then the passenger door ECU drives the power window motor and the body ECU is transmitted multiply to the rear left hand and right hand power window regulator switch, then the rear left hand power window regulator switch drives the left hand power window motor, the right hand rear power window regulator switch drives and the right hand power window motor.

1. Check the door lock function. Check all the doors can lock and unlock when the driver's door lock cylinder is operated via the key. If the results are OK, go to the next step. If the results are not good, go to «POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE - ES 300»(ref-151739) article in DOOR LOCKS & ANTI-THEFT SYSTEMS.
2. Check that the power window operates via each regulator switch. If the driver's door is not operated, go to «DTC B1221: DRIVER'S DOOR POWER WINDOW ACTIVE TEST»(ref-152599-S08520713052003021400000) under DIAGNOSTIC TESTS. If the passenger's door is not operated, go to «DTC B1223: PASSENGER'S DOOR POWER WINDOW ACTIVE TEST»(ref-152599-S19014628552003021400000) under DIAGNOSTIC TESTS. If the left hand rear door is not operated, go to «POWER WINDOW ACTIVE TEST (LH REAR DOOR)»(ref-152599-S00090033602003021700000) under COMPONENT TESTS. If the right hand rear door is not operated, go to «POWER WINDOW ACTIVE TEST (RH REAR DOOR)»(ref-152599-S11255786702003021700000) under COMPONENT TESTS.
3. Check that the other power window operates via the remote operation of the master switch. If the results are OK, replace the power window regulator master switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. If the results are not good, go to «REMOTE CONTROL POWER WINDOW REGULATOR BY MASTER SWITCH»(ref-152599-S06113591722003021700000) under COMPONENT TESTS.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor.

1. Perform the Active Test by using the hand-held tester. Select the Active Test and then check that the power window operates (RL P/W UP/DOWN). During the Active Test, the hand-held tester sends a signal to the body ECU to drive the power window motor. If the power window operates, the power window motor itself and the wiring harness between the power window motor and body ECU is considered normal. If the results are OK, go to the next step. If the results are not good, go to «POWER WINDOW REGULATOR SWITCH CIRCUIT (LH REAR DOOR)»(ref-152599-S24990494622003021700000) .
2. Replace the power window regulator switch assembly. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, go to «POWER WINDOW REGULATOR SWITCH CIRCUIT (LH REAR DOOR)»(ref-152599-S24990494622003021700000) .

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor.

1. Perform the Active Test by using the hand-held tester. Select the Active Test and then check that the power window operates (RR P/W UP/DOWN). During the Active Test, the hand-held tester sends a signal to the body ECU to drive the power window motor. If the power window operates, the power window motor itself and the wiring harness between the power window motor and body ECU is considered normal. If the results are OK, go to the next step. If the results are not good, go to «POWER WINDOW REGULATOR SWITCH CIRCUIT (RH REAR DOOR)»(ref-152599-S07687056012003021700000) .
2. Replace the power window regulator switch assembly. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, go to «POWER WINDOW REGULATOR SWITCH CIRCUIT (RH REAR DOOR)»(ref-152599-S07687056012003021700000) .

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 4)

Scheme 4

1. Check the DOOR 4 fuse. If the fuse is OK, go to the next step. If the fuse is not good, replace the fuse.
2. Check the rear power window regulator switch assembly. Check the power source voltage. Disconnect the regulator switch assembly connector. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the voltage between terminal No. 12 (BDR) of the vehicle's side connector of the regulator switch assembly and the body ground. If the voltage is a constant 10-14 volts, go to the next step. If the voltage is not good, repair or replace the wiring harness or connector.
3. Check the rear power window regulator switch assembly. Check the GND. Disconnect the master switch assembly connector. Check the continuity between terminals No. 7 (GND) and 10 (E) of the vehicle's side connector of the master switch assembly and the body ground. If there is constant continuity, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (LH REAR DOOR)»(ref-152599-S23912127762003021700000) . If there is not constant continuity, repair or replace the wiring harness or connector.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 5)

Scheme 5

1. Check the DOOR 3 fuse. If the fuse is OK, go to the next step. If the fuse is not good, replace the fuse.
2. Check the rear power window regulator switch assembly. Check the power source voltage. Disconnect the regulator switch assembly connector. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the voltage between terminal No. 12 (BDR) of the vehicle's side connector of the regulator switch assembly and the body ground. If the voltage is a constant 10-14 volts, go to the next step. If the voltage is not good, repair or replace the wiring harness or connector.
3. Check the rear power window regulator switch assembly. Check the GND. Disconnect the master switch assembly connector. Check the continuity between terminal No. 7 (GND) of the vehicle's side connector of the master switch assembly and the body ground. If there is constant continuity, go to «POWER WINDOW REGULATOR MOTOR ASSEMBLY CIRCUIT (RH REAR DOOR)»(ref-152599-S33004937312003021700000) . If there is not constant continuity, repair or replace the wiring harness or connector.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the driver's door ECU (power window regulator master switch) monitors the signal and drives the power window motor. see scheme 8

1. Inspect the left hand power window regulator motor assembly operation. When adding the battery voltage to each connector terminal, check that the motor operates smoothly. (Scheme 6) See «INSPECTING DRIVER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION»(ref-152599-S01066486702003021700000) table. If the results are OK, go to the next step. If the results are not good, replace the driver door power window regulator motor. See «POWER WINDOW REGULATOR MOTOR (FRONT DOOR)»(ref-152599-S31344527802003021800000) under REMOVAL & INSTALLATION. INSPECTING DRIVER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION Measuring Condition Operational Direction Battery Positive - Terminal No. 4, Battery Negative - Terminal No. 5 Clockwise Rotation Toward Driving Axis Battery Positive - Terminal No. 5, Battery Negative - Terminal No. 4 Counterclockwise Wind Rotation Toward Driving Axis
2. Check the wiring harness. Disconnect the master switch assembly (D17) and the power window motor (P7) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000). Check the continuity of each terminal of the vehicle's side connector switch assembly. See «INSPECTING POWER WINDOW REGULATOR MASTER SWITCH & REGULATOR MOTOR CONTINUITY»(ref-152599-S19282868952003021700000) table. If the continuity is OK, replace the power window regulator master switch. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. If the continuity is not good, repair or replace wiring harness or connector. INSPECTING POWER WINDOW REGULATOR MASTER SWITCH & REGULATOR MOTOR CONTINUITY Switch - Motor Specified Condition 15 (PLS) - 6 (PLS) Continuity 5 (LMT) - 2 (LMT) Continuity 13 (SGND) - 3 (E) Continuity

Scheme 6

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the passenger's door ECU (power window regulator switch) monitors the signal via the power window regulator switch and drives the power window motor. see scheme 9

1. Inspect the operation of the passenger side power window regulator motor assembly. When adding the battery voltage to each connector terminal, check that the motor operates smoothly. (Scheme 7) See «INSPECTING PASSENGER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION»(ref-152599-S12817446612003021700000) table. If the results are OK, go to the next step. If the results are not good, replace the passenger power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (FRONT DOOR)»(ref-152599-S31344527802003021800000) under REMOVAL & INSTALLATION. INSPECTING PASSENGER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION Measuring Condition Operation Direction Battery Positive - Terminal No. 5, Battery Negative - Terminal No. 4 Clockwise Rotation Toward Driving Axis Battery Positive - Terminal No. 4, Battery Negative - Terminal No. 5 Counterclockwise Wind Rotation Toward Driving Axis
2. Check the wiring harness. Disconnect the regulator switch assembly (F13) and the power window regulator motor (P8) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000). Check the continuity of each terminal of the vehicle's side connector switch assembly. See «INSPECTING POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY»(ref-152599-S02680611472003021700000) table. If the continuity is OK, replace the power window regulator switch. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION. If the continuity is not good, repair or replace wiring harness or connector. INSPECTING POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY Switch - Motor Specified Condition 15 (PLS) - 3 (PLS) Continuity 5 (LMT) - 6 (LMT) Continuity 13 (SGND) - 1 (E) Continuity

Scheme 7

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 8)

Scheme 8

1. Inspect the operation of the left hand rear power window regulator motor assembly. When adding the battery voltage to each connector terminal, check that the motor operates smoothly. (Scheme 9) See «INSPECTING PASSENGER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION»(ref-152599-S12817446612003021700000) table. If the results are OK, go to the next step. If the results are not good, replace the left hand rear power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION.
2. Check the wiring harness. Disconnect the regulator switch assembly (R15) and the power window regulator motor (P9) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000). Check the continuity of each terminal of the vehicle's side connector switch assembly. See «INSPECTING LH REAR POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY»(ref-152599-S01785608292003021700000) table. If the continuity is OK, replace the left hand rear power window regulator switch. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. If the continuity is not good, repair or replace wiring harness or connector. INSPECTING LH REAR POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY Switch - Motor Specified Condition 4 (PLS) - 3 (PLS) Continuity 3 (LMT) - 6 (LMT) Continuity 5 (SGND) - 1 (E) Continuity

Scheme 9

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 10)

Scheme 10

1. Inspect the operation of the right hand rear power window regulator motor assembly. When adding the battery voltage to each connector terminal, check that the motor operates smoothly. (Scheme 9) See «INSPECTING DRIVER'S DOOR POWER WINDOW REGULATOR MOTOR OPERATION»(ref-152599-S01066486702003021700000) table. If the results are OK, go to the next step. If the results are not good, replace the right hand rear power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION.
2. Check the wiring harness. Disconnect the regulator switch assembly (R16) and the power window regulator motor (P10) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000). Check the continuity of each terminal of the vehicle's side connector switch assembly. See «INSPECTING RH REAR POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY»(ref-152599-S26897950892003021700000) table. If the continuity is OK, replace the right hand rear power window regulator switch. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. If the continuity is not good, repair or replace wiring harness or connector. INSPECTING RH REAR POWER WINDOW REGULATOR SWITCH & REGULATOR MOTOR CONTINUITY Switch - Motor Specified Condition 4 (PLS) - 9 (PLS) Continuity 3 (LMT) - 2 (LMT) Continuity 5 (SGND) - 6 (E) Continuity

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 8)

1. Check the limit switch circuit wiring harness. Disconnect the regulator switch assembly (R15) and power window regulator motor (P9) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY»(ref-152599-S03160635032003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector. INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY Switch - Motor Specified Condition 3 (LMT) - 6 (LMT) Continuity 5 (SGND) - 1 (E) Continuity
2. Check the pulse sensor circuit wiring harness. Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY»(ref-152599-S29534666112003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector. INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY Switch - Motor Specified Condition 4 (PLS) - 3 (PLS) Continuity 5 (SGND) - 1 (E) Continuity
3. Replace the left hand rear power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, replace the left hand rear power window regulator switch assembly. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the power window regulator switch monitors the signal via the power window regulator master switch and drives the power window motor. (Scheme 10)

1. Check the limit switch circuit wiring harness. Disconnect the regulator switch assembly (R16) and power window regulator motor (P10) connectors. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR LIMIT SWITCH CONTINUITY»(ref-152599-S03160635032003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector.
2. Check the pulse sensor circuit wiring harness. Check the continuity of each terminal of the vehicle's side connector of the switch assembly. See «INSPECTING LH REAR POWER WINDOW REGULATOR MOTOR PULSE SENSOR CONTINUITY»(ref-152599-S29534666112003021700000) table. If the continuity is OK, go to the next step. If the continuity is not good, repair or replace the wiring harness or connector.
3. Replace the right hand rear power window regulator motor assembly. See «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION. Check the power window operation. If the operation is not good, replace the right hand rear power window regulator switch assembly. See step 1) of «POWER WINDOW REGULATOR MOTOR (REAR DOOR)»(ref-152599-S09204373842003021800000) under REMOVAL & INSTALLATION.

Note. The power window system uses a large-scale body multiplex communications system. First of all, confirm the communication function and check that there is no abnormality in the communication system. Also if the power window system has a malfunction in the jam protection function, the power window AUTO UP/DOWN does not operate and a diagnosis code is recorded. Confirm the diagnosis code.

When the ignition switch is ON, the master switch (door ECU) sends to the passenger's door ECU for multiply a remote switch signal. Then the passenger's door ECU drives the power window motor for the passenger door. The master switch (door ECU) signals body ECU and to the left hand and right hand rear window regulator switches for multiply a remote switch signal. Then the left hand power window regulator switch drives the left hand power window motor and the right hand power window regulator switch drives the right hand power window motor. (Scheme 11)

Scheme 11

1. Check the power door lock operation. If the operation is OK, go to the next step. If the operation is not good, go to «POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE»(ref-151739) article in DOOR LOCKS & ANTI-THEFT SYSTEMS.
2. Check the DTC code. Check data monitor (for MANUAL UP/DOWN switch). Using a hand-held tester, check that the DTC B1221 is output when the switch is operated. Using DTC B1221, which is a code when any master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC B1221 when the switch is operated, the switch circuit can be considered normal. If there is an output of DTC B1221 when the manual UP/DOWN switch is ON or no output of DTC B1221 when the manual UP/DOWN switch is OFF, the switch circuit can be considered normal. If the results are OK, go to the next step. If the results are not good, replace the power window regulator master switch assembly. See «POWER WINDOW MASTER SWITCH»(ref-152599-S22926261652003021800000) under REMOVAL & INSTALLATION.
3. Confirm the remote control power window by operating the master switch. When the rear door does not operate by the master switch, go to the next step. When the passenger's door does not operate by the master switch, repair or replace the wiring harness or connector (D17-8 (MPX2) - F13-8 (MPX2) wiring harness).
4. Check the continuity of the communication line. Disconnect the body ECU connectors B5 and B6. See «CONNECTOR IDENTIFICATION»(ref-152599-S42233421132003021400000) . Inspect the continuity of each terminal of the driver side junction block and rear power window regulator switch connectors. See «INSPECTING BODY ECU & REAR POWER WINDOW REGULATOR SWITCH CONTINUITY»(ref-152599-S41977676082003021700000) table. If the continuity is OK, replace the driver side junction block assembly. If the left hand rear side continuity is not good, repair or replace the B6-5 (MPX5) - R15-8 (MPX1) wiring harness or connector. If the right hand rear side continuity is not good, repair or replace the B5-1 (MPX4) - R16-8 (MPX1) wiring harness or connector. INSPECTING BODY ECU & REAR POWER WINDOW REGULATOR SWITCH CONTINUITY Item Tester Connection Specified Condition Left Hand Rear Side B6-5 (MPX5) - R15-8 (MPX1) Continuity Right Hand Rear Side B5-1 (MPX4) - R16-8 (MPX1) Continuity