The windshield wiper relay assembly controls the windshield wiper motor assembly through this circuit.
Perform the Active Test according to the display on the GTS.
| 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
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the A5 and A6 windshield wiper relay assembly connectors.
Disconnect the A93 windshield wiper motor assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A5-2 (+1) - A93-1 (+1) | Always | Below 1 Ω |
| A5-4 (+2) - A93-4 (+2) | Always | Below 1 Ω |
| A6-6 (+SM) - A93-3 (+S) | Always | Below 1 Ω |
| A5-2 (+1) or A93-1 (+1) - Body ground | Always | 10 kΩ or higher |
| A5-4 (+2) or A93-4 (+2) - Body ground | Always | 10 kΩ or higher |
| A6-6 (+SM) or A93-3 (+S) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Windshield Wiper Motor Assembly) |
Disconnect the windshield wiper motor assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A93-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
Click hereVehicle Exterior>WIPER / WASHER>WIPER ECU>REMOVAL201910,999999,_59,_083109,_0402383,RM100000001JI4Q,
NG