When the windshield washer motor and pump assembly receives signals from the windshield wiper relay assembly, it operates to spray washer fluid from the washer nozzle sub-assemblies.
Inspect the fuses of circuits related to this system before performing the following procedure.
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 Washer Relay | Function to operate the windshield washer motor and pump assembly (Front) | OFF or ON | - |
| Tester Display |
|---|
| Front Washer Relay |
except NR Series:
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Front Washer Relay | Function to operate the windshield washer motor and pump assembly (Front) | OFF or ON | - |
| Tester Display |
|---|
| Front Washer Relay |
Windshield washer motor and pump assembly operates normally.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the windshield washer motor and pump assembly.
Inspect the windshield washer motor and pump assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the A55 windshield wiper relay assembly connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A55-6 (IGWS) - Body ground | Ignition switch ON | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A55-5 (EWS) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A55-1 (+WR) - A35-1 (B) | Always | Below 1 Ω |
| A55-7 (-WR) - A35-2 (SW) | Always | Below 1 Ω |
| A55-1 (+WR) or A35-1 (B) - Body ground | Always | 10 kΩ or higher |
| A55-7 (-WR) or A35-2 (SW) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A55-1 (+WR) - A35-1 (B) | Always | Below 1 Ω |
| A55-1 (+WR) or A35-1 (B) - Body ground | Always | 10 kΩ or higher |
| A35-2 (SW) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG