Combination Switch (Wiper): Inspection

• Inspect the continuity between each connector terminal.
  Fig 1: Identifying Combination Switch Connector Terminal

  Courtesy of SAAB-SCANIA OF AMERICA, INC.
  SWITCH POSITION AND TERMINAL TIMBER
  
  

  	Switch position	Terminal No.	Standard
  FRONT	OFF	7 and 16	Less than 1 O
  	INT	7 and 16	Less than 1 O
  	LO	7 and 17	Less than 1 O
  	HI	8 and 17	Less than 1 O
  	Washer ON	2 and 11	Less than 1 O
  REAR	Washer ON		Less than 1 O
  	OFF	-	More than 1 MO
  	ON	2 and 10	Less than 1 O
  	Washer ON		Less than 1 O

  If continuity is not as specified, replace the switch.

• Intermittent operation inspection

Turn the wiper switch to INT.

Adjust the intermittent control switch to MAX.

Apply battery voltage to switch terminals 16 and 2.

Inspect the voltage of combination switch terminals.

Terminals 

No. 7 - No. 2: 

Fig 2: Combination Switch Terminals Voltage Chart

Courtesy of SAAB-SCANIA OF AMERICA, INC.

1. Switch position
2. Voltage
3. MIN.
4. MAX.
5. Non variable type
6. 12 V
7. 0 V
8. 1.6+/-1 sec.
9. 16+/-6 sec.
10. 3.3+/-1 sec.

If operation is not as specified, replace the switch.