Wiper Switch Inspection

Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

Wiper And Washer. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

INSPECT WIPER AND WASHER SWITCH ASSEMBLY

Wiper Switch -- Inspection

1. INSPECT WIPER AND WASHER SWITCH ASSEMBLY

Check the front wiper switch.
1. Measure the resistance of the switch.
  
  Standard resistance:
  LH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E13-4 (+S) - E13-2 (+1)
  INT
  Below 1 Ω
  OFF
  E13-3 (B) - E13-2 (+1)
  MIST
  LO
  E13-3 (B) - E13-1 (+2)
  HI
  RH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E13-1 (+S) - E13-3 (+1)
  INT
  Below 1 Ω
  OFF
  E13-2 (B) - E13-3 (+1)
  MIST
  LO
  E13-2 (B) - E13-4 (+2)
  HI
  E13-9 (AUTO) - E13-10 (E)^*1
  AUTO
  *1: with Rain Sensor
  If the result is not as specified, replace the switch assembly.

Check the front washer switch.
1. Measure the resistance of the switch.
  
  Standard resistance:
  LH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E12-2 (EW) - E12-31 (WF)
  ON
  Below 1 Ω
  OFF
  10 kΩ or higher
  RH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E12-2 (EW) - E12-3 (WF)
  ON
  Below 1 Ω
  OFF
  10 kΩ or higher
  If the result is not specified, replace the switch assembly.

Check the intermittent operation. (LH wiper lever type)
1. Connect the voltmeter's positive (+) lead to terminal E13-2 (+1) and the negative (-) lead to terminal E12-2 (EW).
2. Connect the battery's positive (+) lead to terminal E13-2 (+B) and the negative (-) lead to terminal E12-2 (EW) and E13-4 (+S).
3. Turn the wiper switch to the INT position.
4. Connect the battery's positive (+) lead to terminal E13-4 (+S) for 5 seconds.
5. Connect the battery's negative (-) lead to terminal E13-4 (+S). Operate the intermittent wiper relay and check the voltage between terminals E13-2 (+1) and E12-2 (EW).
  Standard voltage:
  Refer to the illustration below.
  
  If the result is not as specified, replace the switch assembly.

Check the intermittent operation. (RH wiper lever type)
1. Connect the voltmeter's positive (+) lead to terminal E13-3 (+1) and the negative (-) lead to terminal E12-2 (EW).
2. Connect the battery's positive (+) lead to terminal E13-2 (+B) and the negative (-) lead to terminal E12-2 (EW) and E13-1 (+S).
3. Turn the wiper switch to the INT position.
4. Connect the battery's positive (+) lead to terminal E13-1 (+S) for 5 seconds.
5. Connect the battery's negative (-) lead to terminal E13-1 (+S). Operate the intermittent wiper relay and check the voltage between terminals E13-3 (+1) and E12-2 (EW).
  Standard voltage:
  Refer to the illustration below.
  
  If the result is not as specified, replace the switch assembly.

Check the front washer operation. (LH wiper lever type)
1. Turn the wiper switch OFF.
2. Connect the battery's positive (+) lead to terminal E13-4 (+B) and the negative (-) lead to terminals E13-1 (+S) and E12-2 (EW).
3. Connect the voltmeter's positive (+) lead to E13-2 (+1) and the negative (-) lead to terminal E12-2 (EW).
4. Turn the washer switch ON and OFF, and check the voltage between terminals E13-2 (+1) and E12-2 (EW).
  OK:
  Refer to the illustration below.
  
  If the result is not as specified, replace the switch assembly.

Check the front washer operation. (RH wiper lever type)
1. Turn the wiper switch OFF.
2. Connect the battery's positive (+) lead to terminal E13-2 (+B) and the negative (-) lead to terminals E13-4 (+S) and E12-2 (EW).
3. Connect the voltmeter's positive (+) lead to E13-3 (+1) and the negative (-) lead to terminal E12-2 (EW).
4. Turn the washer switch ON and OFF, and check the voltage between terminals E13-3 (+1) and E12-2 (EW).
  OK:
  Refer to the illustration below.
  
  If the result is not as specified, replace the switch assembly.

Check the rear wiper switch.

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Wiper And Washer.Wiper And Washer System (W/ Rain Sensor).Wiper Switch Inspection

Measure the resistance of the switch.

Standard resistance:

LH wiper lever type
Tester Connection	Switch Condition	Specified Condition
E12-2 (EW) - E12-5 (CIR)	INT	Below 1 Ω
E12-2 (EW) - E12-4 (+1R)	ON	Below 1 Ω
E12-2 (EW) - E12-5 (CIR)	OFF	10 kΩ or higher
E12-2 (EW) - E12-4 (+1R)	OFF	10 kΩ or higher

RH wiper lever type
Tester Connection	Switch Condition	Specified Condition
E12-2 (EW) - E12-6 (CIR)	INT	Below 1 Ω
E12-2 (EW) - E12-7 (+1R)	ON	Below 1 Ω
E12-2 (EW) - E12-6 (CIR)	OFF	10 kΩ or higher
E12-2 (EW) - E12-7 (+1R)	OFF	10 kΩ or higher

If the result is not as specified, replace the switch assembly.

Check the rear washer switch.
1. Measure the resistance of the switch.
  
  Standard resistance:
  LH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E12-2 (EW) - E12-4 (+1R)
  E12-2 (EW) - E13-10 (WR)
  ON
  Below 1 Ω
  OFF
  10 kΩ or higher
  RH wiper lever type
  Tester Connection
  Switch Condition
  Specified Condition
  E12-2 (EW) - E12-7 (+1R)
  E12-2 (EW) - E13-5 (WR)
  ON
  Below 1 Ω
  OFF
  10 kΩ or higher
  If the result is not as specified, replace the switch assembly.