Wiper And Washer System Wiper And Washer Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK WINDSHIELD WIPER SWITCH ASSEMBLY (WIPER SWITCH AND WASHER SWITCH)
CHECK HARNESS AND CONNECTOR (WIPER SWITCH - AUTO WIPER RELAY, BODY GROUND)
WIPER AND WASHER SYSTEM - Wiper and Washer Switch Circuit |
DESCRIPTION
This circuit detects the state of the windshield wiper switch assembly (wiper and washer switch) and sends it to the windshield wiper relay assembly (auto wiper relay).
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK WINDSHIELD WIPER SWITCH ASSEMBLY (WIPER SWITCH AND WASHER SWITCH) |
Remove the windshield wiper switch assembly.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
- Except Hong Kong, India and LHD:
Tester Connection
| Switch Connection
| Specified Condition
|
E20-2 (+B) - E20-4 (+2)
| HI
| Below 1 Ω
|
E20-3 (+1) - E20-2 (+B)
| MIST
|
LO
|
E20-3 (+1) - E20-1 (+S)
| OFF
|
E20-9 (AUTO) - E20-10 (E)
| AUTO
|
E20-7 (VR1) - E20-8 (VR2)
| Adjusting ring changed from (+) side to (-) side
| 0 to 2.7 kΩ
|
- Hong Kong, India:
Tester Connection
| Switch Condition
| Specified Condition
|
E20-2 (+1) - E20-3 (+B)
| MIST
| Below 1 Ω
|
LO
|
E20-2 (+1) - E20-4 (+S)
| OFF
|
E20-3 (+B) - E20-5 (E)
| HI
|
E20-6 (AUTO) - E20-5 (E)
| AUTO
|
E20-7 (VR2) - E20-8 (VR1)
| Adjusting ring changed from (+) side to (-) side
| 0 to 2.7 kΩ
|
| | REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY |
|
|
| 2.CHECK HARNESS AND CONNECTOR (WIPER SWITCH - AUTO WIPER RELAY, BODY GROUND) |
Disconnect the E20 windshield wiper switch assembly connector.
Disconnect the E26 auto wiper relay connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
- Except Hong Kong, India and LHD:
Tester Connection
| Condition
| Specified Condition
|
E20-1 (+S) - E26-11 (+SSW)
| Always
| Below 1 Ω
|
E20-1 (+S) - Body ground
| Always
| 10 kΩ or higher
|
E20-2 (+B) - E26-12 (IG)
| Always
| Below 1 Ω
|
E20-2 (+B) - Body ground
| Always
| 10 kΩ or higher
|
E20-3 (+1) - E26-1 (+2S)
| Always
| Below 1 Ω
|
E20-3 (+1) - Body ground
| Always
| 10 kΩ or higher
|
E20-4 (+2) - E26-3 (+2)
| Always
| Below 1 Ω
|
E20-4 (+2) - Body ground
| Always
| 10 kΩ or higher
|
E20-7 (VR1) - E26-7 (VR1)
| Always
| Below 1 Ω
|
E20-7 (VR1) - Body ground
| Always
| 10 kΩ or higher
|
E20-8 (VR2) - E26-6 (VR2)
| Always
| Below 1 Ω
|
E20-8 (VR2) - Body ground
| Always
| 10 kΩ or higher
|
E20-9 (AUTO) - E26-17 (C1)
| Always
| Below 1 Ω
|
E20-9 (AUTO) - Body ground
| Always
| 10 kΩ or higher
|
E20-10 (E) - E26-16 (C0)
| Always
| Below 1 Ω
|
E20-10 (E) - Body ground
| Always
| Below 1 Ω
|
- Hong Kong, India:
Tester Connection
| Condition
| Specified Condition
|
E20-1 (+2) - E26-3 (+2)
| Always
| Below 1 Ω
|
E20-1 (+2) - Body ground
| Always
| 10 kΩ or higher
|
E20-2 (+1) - E26-1 (+2S)
| Always
| Below 1 Ω
|
E20-2 (+1) - Body ground
| Always
| 10 kΩ or higher
|
E20-3 (+B) - E26-12 (IG)
| Always
| Below 1 Ω
|
E20-3 (+B) - Body ground
| Always
| 10 kΩ or higher
|
E20-4 (+S) - E26-11 (+SSW)
| Always
| Below 1 Ω
|
E20-4 (+S) - Body ground
| Always
| 10 kΩ or higher
|
E20-5 (E) - E26-16 (C0)
| Always
| Below 1 Ω
|
E20-5 (E) - Body ground
| Always
| Below 1 Ω
|
E20-6 (AUTO) - E26-17 (C1)
| Always
| Below 1 Ω
|
E20-6 (AUTO) - Body ground
| Always
| 10 kΩ or higher
|
E20-7 (VR2) - E26-6 (VR2)
| Always
| Below 1 Ω
|
E20-7 (VR2) - Body ground
| Always
| 10 kΩ or higher
|
E20-8 (VR1) - E26-7 (VR1)
| Always
| Below 1 Ω
|
E20-8 (VR1) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
|
