Component Testing

Windshield Wiper/Washer Switch

1. Ignition OFF, disconnect the harness connector at the S82 Windshield Wiper/Washer Switch.
2. Test for infinite resistance between the signal terminal 4 and the low reference terminal 2 with the rear window washer switch in the open position.
   • If less than infinite resistance 

     Replace the S82 Windshield Wiper/Washer Switch.

   • If infinite resistance 
3. Verify the resistance reading is within the range specified below between the signal circuit terminal 4 and the low reference circuit terminal 2 by cycling the switch between Rear Wiper position and Rear Washers position.
   • Rear Wiper : 624-644Ω
   • Rear Wiper Sweep : 1.99-2.01kΩ
   • Rear Washer : 6.11-6.13kΩ
   • If not within range specified 

     Replace the S82 Windshield Wiper/Washer Switch.

   • If within range specified 
4. All OK

Relay Test

1. Ignition OFF, disconnect the KR7 Rear Wiper Relay.
2. Test for 60-200 Ω between terminals 85 and 86.
   • If less than 60 or greater than 200 

     Replace the KR7 Rear Wiper Relay.

   • If between 60-200 Ω 
3. Test for infinite resistance between the terminals listed below:
   • 30 and 86
   • 30 and 87
   • 30 and 85
   • 85 and 87
   • If less than infinite resistance 

     Replace the KR7 Rear Wiper Relay.

   • If infinite resistance 
4. Install a 10 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground.
5. Test for less than 10 Ω between terminals 30 and 87.
   • If 10 Ω or greater  

     Replace the KR7 Rear Wiper Relay.

   • If less than 10 Ω 
6. All OK.