When the ignition switch is ON, the rear power window regulator motor assembly LH is operated by the rear power window regulator switch assembly LH. The rear power window regulator motor assembly LH has motor, regulator and ECU functions.
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 rear power window regulator motor assembly LH has been replaced with a new one, initialize the power window control system.
Check that the window lock switch is off before performing the following procedure.
Inspect the fuse for circuits related to this system before performing the following procedure.
Using the GTS, read the data for the condition when the rear power window regulator switch assembly LH was operated.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| RL Door P/W Up SW | Rear LH door power window manual up switch signal | OFF or ON | OFF: Rear LH door power window manual up switch not being operated
ON: Rear LH door power window manual up switch being operated |
- |
| RL Door P/W Down SW | Rear LH door power window manual down switch signal | OFF or ON | OFF: Rear LH door power window manual down switch not being operated
ON: Rear LH door power window manual down switch being operated |
- |
| Tester Display |
|---|
| RL Door P/W Up SW |
| RL Door P/W Down SW |
On the GTS screen, ON or OFF is displayed accordingly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear power window regulator switch assembly LH.
Inspect the rear power window regulator switch assembly LH.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the L2 rear power window regulator switch assembly LH connector.
Disconnect the L5 rear power window regulator motor assembly LH connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| L2-5 (UP) - L5-10 (UP) | Always | Below 1 Ω |
| L2-4 (DOWN) - L5-7 (DOWN) | Always | Below 1 Ω |
| L2-5 (UP) or L5-10 (UP) - Body ground | Always | 10 kΩ or higher |
| L2-4 (DOWN) or L5-7 (DOWN) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG