The windshield wiper relay assembly controls the windshield wiper motor assembly through this circuit.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter following menus: Body Electrical / Main Body / Active Test.
Perform the Active Test according to the display on the GTS.
for NR Series:
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Front Wiper Lo Operation | Function to operate the windshield wiper motor assembly in LO | OFF or ON | - |
| Front Wiper Hi Operation | Function to operate the windshield wiper motor assembly in HI | OFF or ON | - |
| Tester Display |
|---|
| Front Wiper Lo Operation |
| Tester Display |
|---|
| Front Wiper Hi Operation |
except NR Series:
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Front Wiper Lo Operation | Function to operate the windshield wiper motor assembly in LO | OFF or ON | - |
| Front Wiper Hi Operation | Function to operate the windshield wiper motor assembly in HI | OFF or ON | - |
| Tester Display |
|---|
| Front Wiper Lo Operation |
| Tester Display |
|---|
| Front Wiper Hi Operation |
Windshield wiper motor assembly operates normally.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the windshield wiper motor assembly.
Inspect the windshield wiper motor assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the A55 and A56 windshield wiper relay assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A55-2 (+1) - A31-1 (+1) | Always | Below 1 Ω |
| A55-4 (+2) - A31-4 (+2) | Always | Below 1 Ω |
| A56-6 (+SM) - A31-3 (+S) | Always | Below 1 Ω |
| A55-2 (+1) or A31-1 (+1) - Body ground | Always | 10 kΩ or higher |
| A55-4 (+2) or A31-4 (+2) - Body ground | Always | 10 kΩ or higher |
| A56-6 (+SM) or A31-3 (+S) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A31-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG