When the ignition switch is ON, the power window regulator motor assembly LH (for LHD) or power window regulator motor assembly RH (for RHD) is operated by the multiplex network master switch assembly. The power window regulator motor assembly LH (for LHD) or power window regulator motor assembly RH (for RHD) has motor, regulator and ECU functions.
for LHD:
for RHD:
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
If the power window regulator motor assembly has been replaced with a new one, initialize the power window control system.
Inspect the fuses for circuits related to this system before performing the following procedure.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| D Door P/W Up SW | Driver door power window manual up switch signal | OFF or ON | OFF: Driver door power window manual up switch not being operated
ON: Driver door power window manual up switch being operated |
- |
| D Door P/W Down SW | Driver door power window manual down switch signal | OFF or ON | OFF: Driver door power window manual down switch not being operated
ON: Driver door power window manual down switch being operated |
- |
| Tester Display |
|---|
| D Door P/W Up SW |
| D Door P/W Down SW |
On the GTS screen, ON or OFF is displayed accordingly.
| Result | Proceed to |
|---|---|
| OK (for LHD) | A |
| OK (for RHD) | B |
| NG | C |
A
B
C
| *A | for LHD |
| *B | for RHD |
| *a | Front view of wire harness connector
(to Power Window Regulator Motor Assembly) |
Disconnect the R12*1 or R2*2 power window regulator motor assembly connector.
*1: for LHD
*2: for RHD
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R12-10 (UP) - R12-1 (GND) | ·
Ignition switch ON ·
Multiplex network master switch assembly (driver side switch) OFF → UP (manual operation) |
11 to 14 V → Below 1 V |
| R12-7 (DOWN) - R12-1 (GND) | ·
Ignition switch ON ·
Multiplex network master switch assembly (driver side switch) OFF → DOWN (manual operation) |
11 to 14 V → Below 1 V |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R2-10 (UP) - R2-1 (GND) | ·
Ignition switch ON ·
Multiplex network master switch assembly (driver side switch) OFF → UP (manual operation) |
11 to 14 V → Below 1 V |
| R2-7 (DOWN) - R2-1 (GND) | ·
Ignition switch ON ·
Multiplex network master switch assembly (driver side switch) OFF → DOWN (manual operation) |
11 to 14 V → Below 1 V |
| Result | Proceed to |
|---|---|
| OK (for LHD) | A |
| OK (for RHD) | B |
| NG | C |
A
B
C
*1: for LHD
*2: for RHD
Disconnect the R11*1 or R1*2 multiplex network master switch assembly connector.
Disconnect the R12*1 or R2*2 power window regulator motor assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R11-3 (UP) - R12-10 (UP) | Always | Below 1 Ω |
| R11-7 (DOWN) - R12-7 (DOWN) | Always | Below 1 Ω |
| R11-3 (UP) or R12-10 (UP) - Body ground | Always | 10 kΩ or higher |
| R11-7 (DOWN) or R12-7 (DOWN) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R1-3 (UP) - R2-10 (UP) | Always | Below 1 Ω |
| R1-7 (DOWN) - R2-7 (DOWN) | Always | Below 1 Ω |
| R1-3 (UP) or R2-10 (UP) - Body ground | Always | 10 kΩ or higher |
| R1-7 (DOWN) or R2-7 (DOWN) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG