The condition of the windshield wiper switch assembly is detected and sent to the steering sensor*1 or combination switch ECU assembly*2 in this circuit.
*1: w/ VSC OFF Switch
*2: w/o VSC OFF Switch
w/ Rear Wiper:
w/o Rear Wiper:
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / Steering Angle Sensor / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Wiper OFF Switch | Windshield wiper switch assembly (OFF position) condition | OFF or ON | OFF: Windshield wiper switch assembly not in OFF position
ON: Windshield wiper switch assembly in OFF position |
- |
| Wiper Auto/Int Switch | Windshield wiper switch assembly (INT position) condition | OFF or ON | OFF: Windshield wiper switch assembly not in INT position
ON: Windshield wiper switch assembly in INT position |
- |
| Wiper Lo Switch | Windshield wiper switch assembly (LO position) condition | OFF or ON | OFF: Windshield wiper switch assembly not in LO position
ON: Windshield wiper switch assembly in LO position |
- |
| Wiper Hi Switch | Windshield wiper switch assembly (HI position) condition | OFF or ON | OFF: Windshield wiper switch assembly not in HI position
ON: Windshield wiper switch assembly in HI position |
- |
| Wiper Mist Switch | Windshield wiper switch assembly (MIST position) condition | OFF or ON | OFF: Windshield wiper switch assembly not in MIST position
ON: Windshield wiper switch assembly in MIST position |
- |
| Washer Switch | Windshield wiper switch assembly (washer switch) condition | OFF or ON | OFF: Windshield wiper switch assembly (washer switch) in OFF position
ON: Windshield wiper switch assembly (washer switch) in ON position |
- |
| Rear Wiper Lo Switch | Windshield wiper switch assembly (rear wiper switch LO position) condition | OFF or ON | OFF: Windshield wiper switch assembly (rear wiper switch) not in LO position
ON: Windshield wiper switch assembly (rear wiper switch) in LO position |
w/ Rear Wiper |
| Rear Wiper Hi Switch | Windshield wiper switch assembly (rear wiper switch HI position) condition | OFF or ON | OFF: Windshield wiper switch assembly (rear wiper switch) not in HI position
ON: Windshield wiper switch assembly (rear wiper switch) in HI position |
w/ Rear Wiper |
| Rear Washer Switch | Windshield wiper switch assembly (rear washer switch) condition | OFF or ON | OFF: Windshield wiper switch assembly (rear washer switch) in OFF position
ON: Windshield wiper switch assembly (rear washer switch) in ON position |
w/ Rear Wiper, Digital Rear-view Mirror System |
| Intermittent Time Volume | Intermittent time adjustment volume condition | Shortest, Shorter, Longer or Longest | Shortest: Windshield wiper switch assembly (intermittent time adjustment volume condition) P4 position
Shorter: Windshield wiper switch assembly (intermittent time adjustment volume condition) P3 position Longer: Windshield wiper switch assembly (intermittent time adjustment volume condition) P2 position Longest: Windshield wiper switch assembly (intermittent time adjustment volume condition) P1 position |
- |
| Tester Display |
|---|
| Wiper OFF Switch |
| Wiper Auto/Int Switch |
| Wiper Lo Switch |
| Wiper Hi Switch |
| Wiper Mist Switch |
| Washer Switch |
| Rear Wiper Lo Switch |
| Rear Wiper Hi Switch |
| Rear Washer Switch |
| Intermittent Time Volume |
The GTS display changes correctly in response to the windshield wiper switch assembly operation.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the windshield wiper switch assembly.
Inspect the windshield wiper switch assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the steering wheel switch housing.
Inspect the steering wheel switch housing.
| Result | Proceed to |
|---|---|
| OK (w/ VSC OFF Switch) | A |
| OK (w/o VSC OFF Switch) | B |
| NG | C |
A
B
C
Disconnect the N3 steering sensor connector.
Disconnect the N68 windshield wiper relay assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N3-2 (2S) - N68-3 (2S) | Always | Below 1 Ω |
| N3-2 (2S) or N68-3 (2S) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
Click hereVehicle Exterior>WIPER / WASHER>WIPER ECU>REMOVAL201902,999999,_59,_079320,_0385310,RM100000001GLLS,
NG
Disconnect the N3 combination switch ECU assembly connector.
Disconnect the N68 windshield wiper relay assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N3-2 (2S) - N68-3 (2S) | Always | Below 1 Ω |
| N3-2 (2S) or N68-3 (2S) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
Click hereVehicle Exterior>WIPER / WASHER>WIPER ECU>REMOVAL201902,999999,_59,_079320,_0385310,RM100000001GLLS,
NG